Climb Milling (Down milling):
Cutting starts at the surface of the workpiece, where the chip is at its thickest.
The advantages: downward component of cutting forces hold workpiece in place.
Because of the resulting high impact forces when the teeth engage the workpiece, this operation must have a rigid setup, and backlash must be eliminated in the table feed mech.
Not suitable for machining workpiece having surface scale, such as hot-worked metals, forgings, and casting.
The scale is hard and abrasive and causes excessive wear and damage to the cutter teeth, thus
shortening tool life.
Climb Milling (Down milling): Cutting starts at the surface of the workpiece, where the chip is at its thickest. The advantages: downward component of cutting forces hold workpiece in place. Because of the resulting high impact forces when the teeth engage the workpiece, this operation must have a rigid setup, and backlash must be eliminated in the table feed mech. Not suitable for machining workpiece having surface scale, such as hot-worked metals, forgings, and casting. The scale is hard and abrasive and causes excessive wear and damage to the cutter teeth, thus shortening tool life.
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