Do the main angles need to be larger or smaller when the tool is processed?
The main deflection is small, depending on the form and material of the added artifact. 1. General for long and thin axis, the Angle moment lead to radial force increase, shaft bending, cutting force deformation again, ladder type shaft, because of the limitation of parts structure also can only use 90 ° Angle. The surface roughness of the parts can be improved by using the proper method of the tip arc. For parts that do not have the above, the main Angle is a little bit smaller, which can make the cutting more light, which can increase the amount of the knife and increase the efficiency of production. It is also possible to obtain good surface quality by using the blade of the blade in the tip area
When finishing, the surface roughness of the tool and the front Angle of the lathe and the blade of the lathe should be made properly, and the surface roughness of the parts will be greatly improved. If the work is hard to work with. The main deflection should be adopted.
The main Angle is small, the strength of the blade is high, the cooling condition is good. The main cutting edge length is long, and the average cutting load on the main cutting edge is reduced. But the cutting thickness is small and the cutting effect is poor. Machining materials: 1. The hard materials such as hardened steel, the main Angle is bigger (2) using cemented carbide cutting tools for finish machining, should choose a large Angle 3. The main need from intermediate cutting tool, workpiece ladder shaft workpieces, for example, should choose the Angle according to the shape. According to the floor master question, if the material hardness is better, need machining precision, then the main deflection is bigger!
