Why is it necessary to separate rough and fine machining for cast iron platforms

Hebei Fengquan Machinery Manufacturing Co., Ltd. is located in Botou City, Hebei Province, with convenient transportation and a good location. It is engaged in casting; A company engaged in machining and machine tool manufacturing. Laifengquan Machinery has always been dedicated to the manufacturing of heavy equipment, striving to become one of the solution providers for large cast iron measuring tools, granite measuring tools, large machine tools, and mechanical manufacturing solutions.

Cast iron platform; During mechanical processing, rough and fine machining should be separated. How much do you know about this? Why do rough machining and precision machining need to be separated

This is because during rough machining, the cutting amount is large, the workpiece is subjected to high cutting and clamping forces, generates a lot of heat, and there is a significant work hardening phenomenon on the machined surface,

There is a significant internal stress in the workpiece, and if rough and rough machining are carried out continuously, the precision of the precision machined part will quickly be lost due to the redistribution of stress. For certain parts that require high machining accuracy. After rough machining and before precision machining, low-temperature annealing or aging treatment should also be arranged to relieve internal stress.

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