Detailed explanation of machining equipment and process knowledge 2

02 Process flow
The machining process specification is one of the process documents that specify the machining process and operation method of parts. It is to write the more reasonable process and operation method into a process document in the specified form under specific production conditions to guide production.
The machining process of parts is composed of many processes, and each process can be divided into several installation, work stations, work steps and tool paths.
What processes need to be included in a process is determined by the structural complexity of the processed parts, processing accuracy requirements and production type.
Different production quantities have different processing technologies.

Process knowledge
1) Holes with accuracy less than 0.05 can not be milled and need CNC processing; If it is through hole, it can also be wire cut.
2) The fine hole (through hole) after quenching needs to be processed by wire cutting; Blind holes need rough machining before quenching and finish machining after quenching. Non-finished holes can be made in place before quenching (with quenching allowance of 0.2 on one side).
3) The groove with a width of less than 2MM needs wire cutting, and the groove with a depth of 3-4MM also needs wire cutting.
4) The minimum allowance for rough machining of quenched parts is 0.4, and the allowance for rough machining of non-quenched parts is 0.2.
5) The coating thickness is generally 0.005-0.008, which shall be processed according to the size before plating.











Post time: Feb-16-2023