Solutions to Difficulties in Processing Stainless Steel Parts
Stainless steel is difficult to machine because the chemical relationship between the tool and the material to be machined results in work hardening and low thermal conductivity of the material to be machined, which is not only prone to unusual wear, but also tool chipping and abnormal breakage. What are the solutions for dealing with difficult processing of stainless steel parts?
The tool plays an important role in its cutting performance. In order to make the cutting light and smooth, the carbide tool should adopt a larger rake angle to improve the tool life.
In order to prevent chips from sticking to the knife, the front and flank surfaces of the tool should be carefully sharpened to ensure a small roughness value, thereby reducing the chip flow resistance and preventing chips from sticking to the knife. The cutting edge of the tool should be kept sharp to reduce work hardening. The feed rate and the amount of back cutting should not be too small to prevent the tool from cutting in the hardened layer and affect the service life of the tool.
Due to the strong and tough characteristics of stainless steel chips, the grinding of the chip breaker on the rake face of the tool should be appropriate, so that the chip removal, chip tolerance and chip removal are convenient during the cutting process.
Due to the characteristics of poor adhesion and heat dissipation of stainless steel, it is very important to use cutting oil with good anti-adhesion and heat dissipation in cutting, such as good cooling, cleaning, rust prevention and lubrication.