Cemented Carbide Cutting Tools Process Basic Law

Cemented carbide cutting tools cutting process is the process of chips and the machining surface formed by cemented carbide cutting tools cut out from the workpiece under the superfluous metal layer by cutting movement.In this process ,cemented carbide cutting tools appear many phenomena ,such as deformed, with the formation of chips, generated cutting force, the cutting heat and cutting temperature, the cutting tool wear.

Will cut off the peel rewound apple, can also be in accordance with the original look of the pieces together. However, the cutting metal carbide cutting tools, especially in the continuous cutting of steel, the chip will not follow as it rolled up. Not because the chip is too hard, but because the chip length will change's sake. At the same time, the chip will be widened to thicken. In other words, the different elements of the cutting chip shape are also very different. The thickness of the chip is typically several times the original, while the length of the chips is a fraction of the original. Accordingly, the chips obtained by using a cutting speed cutting, equivalent based on the fraction of the chips generated by the cutting speed.

Chips

Chips are formed in the cutting process of cutting tools.

The shape of the chips according to the formed after shear slip of the cutting tool, the chips are divided into four types.

1. Ribbon chips

Plastic deformation of the cutting layer was cut off after the tool, the chips shape stretches continuous strip, chips along the tool in front of outflows.

2. Festival like chips

Cutting layer in the plastic deformation process, the shear stress of the shear surface at the local position of the material strength limit partially broken, so that cracking of the chips top surface forming nodose.

3. Granular chips

Generated in the shear surface of the shear stress exceeds the material strength limit, the chips formed are shear breaking into a granular form.

4 chipping chips

When cutting cast iron brittle metal, the chip layer has not been plastically deformed, the loose interface between the graphite and the ferrite material tissue produce irregular fracture, while the formation of cracked chips.

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