up cut down cut milling

up and down cut (climb) milling | mitsubishi materials corporation

up and down cut (climb) milling | mitsubishi materials corporation

When choosing a method to machine, up cutting or down cut milling (climb milling) is decided by the conditions of the machine tool, the milling cutter and the application. However, it is said that in terms of tool life, down cut (climb) milling is more advantageous.

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up milling and down milling-differences, working, advantages, application

up milling and down milling-differences, working, advantages, application

This is also called as conventional milling or Climb up milling.In which the cutter and feed move in the opposite direction i.e the rotary cutter moves against the feed.UP MILLINGWith reference to the adjacent figure, the cutter rotates in the anti-clockwise direction, while the direction of feed is from right to left.So, due to this opposite motion, the width of the cutting chips gradually increases from minimum to maximum.There is massive friction between the cutter and workpiece which results in generating a large amount of heat.Up Milling Advantages:This is a safe operation because It has no tendency to drag the workpiece into the cutter.Up Milling Application:Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

In which the cutter and feed move in the opposite direction i.e the rotary cutter moves against the feed.UP MILLINGWith reference to the adjacent figure, the cutter rotates in the anti-clockwise direction, while the direction of feed is from right to left.So, due to this opposite motion, the width of the cutting chips gradually increases from minimum to maximum.There is massive friction between the cutter and workpiece which results in generating a large amount of heat.Up Milling Advantages:This is a safe operation because It has no tendency to drag the workpiece into the cutter.Up Milling Application:Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

With reference to the adjacent figure, the cutter rotates in the anti-clockwise direction, while the direction of feed is from right to left.So, due to this opposite motion, the width of the cutting chips gradually increases from minimum to maximum.There is massive friction between the cutter and workpiece which results in generating a large amount of heat.Up Milling Advantages:This is a safe operation because It has no tendency to drag the workpiece into the cutter.Up Milling Application:Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

So, due to this opposite motion, the width of the cutting chips gradually increases from minimum to maximum.There is massive friction between the cutter and workpiece which results in generating a large amount of heat.Up Milling Advantages:This is a safe operation because It has no tendency to drag the workpiece into the cutter.Up Milling Application:Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

There is massive friction between the cutter and workpiece which results in generating a large amount of heat.Up Milling Advantages:This is a safe operation because It has no tendency to drag the workpiece into the cutter.Up Milling Application:Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

This is a safe operation because It has no tendency to drag the workpiece into the cutter.Up Milling Application:Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

Generally used for milling of casting and forging.Down Milling Definition:This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

This is also called a Climb down milling.In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

In the case of this milling, the cutter rotates in the same direction as that of the feed.There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

There is less friction involved between the cutter and the workpiece as both.DOWN MILLINGTherefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

Therefore, the cutter and feed are moving in the same direction. This small amount of friction results in the generation of minimum heat.Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

Here, the thickness of the chip varies from a maximum to a minimum during the process.Down Milling Advantages:This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

This machine poses a longer tool life.This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

This machine produces a good surface finish.Down Milling Application:This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

This type of machine generally used for finishing the operation like sawing, grooving, keyway cutting, etc.Difference Between Up and Down Milling Machine:Sl. NoUp MillingDown Milling1.This machine is also called as conventional milling.This is called a climb down milling.2.The cutting forces act upward.The cutting forces act downward.3.Mostly used for rough cutting operations.This is used for finishing operations.4.Due to the more tool wear rate, the durability of the tool is less.Due to less tool wear rate, the durability of the tool is more.5.The tool wear rate is more, as the direction of the rotary cutter is against the feed.The tool wear rate is less, as the direction of a cutter is the same direction as the feed.6.This process is mostly used in the conventional way of cutting the surface.Nowadays, This is a better operation choice then up milling machine.7.Effective cooling is not required during cutting action.Effective cooling is possible during cutting action.8.The cutter rotates against the direction of travel of the workpiece during metal cutting.The cutter rotates in the same direction of travel of the workpiece during metal cutting.9.Poor surface finish.Good surface finish.10.It requires a large amount of force compared to down milling.Here, there is a requirement of less force.11.This machine is mostly used cutting of brass, bronze, and ferrous materials.And whereas this is applicable to aluminum and aluminum alloys.12.Chip thickness starts at zero and increases towards the end of the cut.Chip thickness is maximum initially and reduces to zero at the end of the cut.

Amrit Kumar is the founder of Learn Mechanical, an Advisor at The Mechanical Engineering- a content-based website in Mechanical Engineering based in Delhi. He has 5+ years of teaching experience in the Core Mechanical Field.

The word machining means removal of any substance and the word electrochemical resembles the mode of energy used. The two terms combined together give rise to a process known as electrochemical...Continue Reading

In the process of cutting metals in different shapes and sizes, there is a loss of material in the form of chips. Different cutting processes result in the production of different types of chips....Continue Reading

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difference between up milling and down milling

difference between up milling and down milling

Milling is one type of conventional machining process primarily for generating flat or stepped surfaces. In peripheral milling, cutting velocity is imparted by rotating the milling cutter about a fixed horizontal axis; whereas, the feed rate is imparted by moving the workpiece (basically worktable) against the rotating milling cutter. Since both cutting velocity and feed rate are vector quantities, so based on their mutual directions, peripheral milling can be classified into two groupsup milling and down milling. Each of them has specific advantages and disadvantages, as illustrated below. Various similarities and differences between up milling and down milling are given in table format in the following sections.

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basic of milling -up milling and down milling

basic of milling -up milling and down milling

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difference between up milling and down milling - mech4study

difference between up milling and down milling - mech4study

Today we will discuss about difference between up millingand down milling. The milling is a machining process in which, a rotary cutter iused to remove the material from work piece in the direction perpendicular tthe axis of rotation.The milling process is done by the machine, which hold botthe tool and work piece in jig and fixture, known as milling machine.There are two ways to cut the material from the work piece through milling machine. First one is named as conventional milling or Up milling and the other one known as climb milling or down milling. The main and basic difference between up milling and down milling is the direction of rotation of cutter to the feed.The milling operation is used to facing of thosework piece, which are not symmetrical from its axis. It isalso used to cut pockets, drill, slot and shape the work piece according to the requirement.There are two ways to cut the material from the work piece through milling machine. First one is named as conventional milling or Up milling and the other one known as climb milling or down milling. The main and basic difference between up milling and down milling is the direction of rotation of cutter to the feed. In up milling the cutter is rotate clockwise when cutting the work piece from right to left. In this type of milling the tool spins against the direction of feed. In this milling process, the cutting chips are carried upward by the tool.Image Source :http://mmu.ic.polyu.edu.hk/handout/0103/0103.htmIn down milling, the cutter rotates clockwise while cutting the work piece from left to right. In this milling operation, the tool spins with the direction of feed. The cutting chips are carried downward by the tool.Image Source :http://mmu.ic.polyu.edu.hk/handout/0103/0103.htmDifference between Up milling and Down milling:Up MillingDown Milling1.In up milling the cutter rotates against direction of feed.In Down milling, the cutter rotates with direction of feed.2.It is also known as conventional milling.It is also known as climb milling.3.In this, chip width size is zero at initial cut and increasewith feed. It is maximum at the end of feed.In this cutting process, chip size is maximum at start of cutand decrease with the feed. It is zero at the end of feed.4.In this process, heat is diffuse to the work piece whichcauses the change in metal properties.In down milling most of heat diffuse to the chip does notchange the work piece properties.5.In up milling, tool wear is more because the tool runsagainst the feed.In this, tool wear is less compare to the up milling, dueto the cutter rotate with the feed.6.Tool life is low.Tool life is high.7.The cutting chips are carried upward by the tool so knownas up milling.The chips are carried downward by the tool so known asdown milling.8.The cutting chips fall down in front of the cutting toolwhich again cut the chips cause less surface finish.The cutting chips fall down behind the tool. This givesbetter surface finish.9.Due to upward force by tool, high strength zig and fixturerequired to hold the work piece.In down milling, downward force act on work piece normalzig and fixture required.10.It is the traditional way of cutting the work piece.It is non-traditional way, but now days, down milling usedmore than up milling.11.High quality cutting fluid is required because heatdiffuse in the work piece.In this process heat does not diffuse in the work piece,so simple cutting fluid is required.12.It required high cutting force compare to down milling.It required low cutting force.Today we have learnt about difference between up milling and down milling. If you have any query or doubt, ask by commenting below. If you like this article, dont forget to share it on social networks. Subscribe our website for more informative articles. Thanks for reading it.

In down milling, the cutter rotates clockwise while cutting the work piece from left to right. In this milling operation, the tool spins with the direction of feed. The cutting chips are carried downward by the tool.Image Source :http://mmu.ic.polyu.edu.hk/handout/0103/0103.htm

Today we have learnt about difference between up milling and down milling. If you have any query or doubt, ask by commenting below. If you like this article, dont forget to share it on social networks. Subscribe our website for more informative articles. Thanks for reading it.

up cut and down cut milling | mitsubishi materials corporation

up cut and down cut milling | mitsubishi materials corporation

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difference between up milling and down milling - cnc up milling & down milling compare | cnclathing

difference between up milling and down milling - cnc up milling & down milling compare | cnclathing

Up milling (conventional milling) is the milling process when the milling cutter cut the workpiece, the direction of cutting speed is opposite to that of the CNC milling part feeding towards.Down milling (climb milling) refers to the milling process in which the rotating direction of the milling cutter is the same as the feed direction of the workpiece, that is, the component of the force exerted by the milling cutter on the workpiece in the feed direction is the same as the feed direction of the workpiece.

Down milling: the force in the vertical direction exerted by the milling cutter on the part is always downward, which has a pressing effect on the milling part, cutting steadily, suitable for difficult to clamp and thin and slender sheet type workpiece. Up milling: the vertical component force is upward, workpiece needs larger clamping force.

Down milling: when the cutting edge of the milling cutter cuts into the workpiece at the first time, the chip thickness is the largest, and gradually reduces to 0. The blade wear is slow, and the surface quality is good. Up milling: the chip thickness is changing from 0 to the maximum. The cutter cant cut into the part at the beginning, the work hardening will reduce the surface quality.

Down milling: the horizontal component force is the same as the feed direction of the worktable, when the gap between the feed screw of the worktable and the nut is large, the worktable is easy to axial wobble, resulting in the cutter teeth break, shaft bent, the workpiece and fixture are displaced and even the machine tool is damaged. Up milling: the force is opposite to the feed direction of the worktable, which wont move.

Up milling: when the cutter teeth contact the workpiece, they cant cut into the metal layer immediately, but slide for a short distance on the workpiece surface. In the sliding process, due to strong friction, a lot of heat will be generated. At the same time, the hardened layer is easy to form on the surface to be machined, which reduces the durability of the cutter.

Down milling is a general choice to improve surface finish and ensure the accuracy. But if there is hard layer, slag deposit on the cutting surface and the surface of the workpiece is uneven, for example, when processing forged blank, the up milling should be employed.

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