Difference between Conventional Milling and Climb Milling

upmilling and down milling

Read: Elements of Plain Milling Cutter - Nomenclature and Angles
What Is Milling and Milling Cutters?

Here is the quick comparison between conventional milling and climb milling.

Conventional Milling
Climb milling
Also known as up milling.
Also known as down milling.
Milling cutter rotates against the direction of feed of workpiece.

Milling cutter rotates in the same direction of feed of workpiece.
Up milling requires higher force.
Down milling requires lesser force comparing to up milling.

Chip thickness is zero at the entrance of cutting tooth and maximum at tooth exit.
Chip thickness is maximum at the entrance of cutting tooth and minimum at tooth exit.

Cutter has the tendency to pull away from the workpiece from Workbench.
Cutter tends to push the workpiece against Workbench.

It needs intrinsic work holding device to hold workpiece against pulling force of cutter.
Cutter pushing the workpiece towards the workbench, so there is no need of special fixture to hold against the force acting by the cutter.

Cutting process leaves chips ahead of the cutter. It is carried upward by the tool.
Cutting process leaves chips behind the cutter. It is carried downward by the tool.

Chip disposal is difficult.
Chip disposal is easy when compared to Conventional Milling.

No tendency to drag workpiece towards the cutter.

It tends to drag workpiece into the cutter.
Surface finish is poor when compared to climb milling. Generally used for the rough cutting operation.

Good surface finishing, generally used for finishing operation.
Tool life is low compared to that of down milling.

It possesses longer tool life.

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