Abstract:
A kind of cold plate fixture was designed to milling nickel base alloy. The combustion luminescence phenomenon of amorphous alloy after oxidation in cold milling was discussed in depth. The relationship between cutting force and feed and cutting speed was analyzed. The results show that the cutting force increases first and then decreases with the increase of cutting speed. During low temperature cutting, the cutting force of amorphous alloy can be significantly reduced by improving the lubrication effect and anti-bonding performance. The cutting length is within 2 m, the chip shape is formed in the processing stage, and the sawtooth shape is formed in the surface layer. More than 24m of cutting length, larger chip formation, resulting in viscous flow results. The surface roughness Ra increases with increasing cutting speed. Smaller feed will cause greater friction between the tool and the workpiece, resulting in the deterioration of surface quality. Many adhesives are formed on the back surface of TiSiN coated tool in the form of cascade. The coating near the cutting edge is spalling to a certain extent, and there is a coating separated from the matrix. Amorphous alloy is treated by low temperature cutting method, which provides reference value for designing amorphous alloy cutting tools with better structure.