How Do I Choose to Cut Off the Knife Base and Cut Off the Knife Plate?

A: Cutting off the knife plate is determined by looking at how large the drawing requires first, while cutting off the knife base is determined by the fastening side of the knife plate and the machine tool.

13. The relationship between the cutting front angle and the roughness of the machining surface?

A: The front corner sharpens the cutting edge, makes cutting lighter, and reduces cutting force and cutting heat. However, the front angle is too large, the strength of the cutting edge and tip is reduced, and the thermal volume of the tool is reduced, which affects the tool life. The size of the front angle also has an effect on surface roughness, chip removal and chip breaking. The strength and hardness of the workware material is low, and the front angle should be bigger and smaller. So the front angle will directly affect the surface roughness.