Mechanical processing is a process of using processing machinery to change the overall dimensions or performance of a workpiece. According to the temperature state of the workpiece being processed, it can be divided into cold processing and hot processing during use. Generally processed at room temperature without causing chemical or phase changes to the workpiece, it is called cold processing.
Mechanical processing is generally done above or below room temperature, which can directly cause chemical or phase changes in the workpiece, and is called hot processing. Cold processing can be divided into cutting and pressure processing according to the differences in processing methods. Hot working commonly includes heat treatment, forging, casting, and welding. Firstly, there are requirements for the hardness of the material. In some cases, the higher the hardness of the material, the better. However, it is limited to the hardness requirements of the machined parts. The processed material should not be too hard, and if it is even harder than the machined parts, it cannot be processed.

Operating Steps for Mechanical Processing

1. Finishing processing: This processing principle roughly refers to some polishing and polishing processes, which are usually carried out after the product has completed its architecture.
2. Face first, then hole: When processing precision mechanical parts, for workpieces such as brackets, it requires both planar and mechanical hole processing. In order to reduce the accuracy error of the processed holes, machining the plane first and then the hole is beneficial for reducing the error.
3. Division of processing stages: When processing precision mechanical parts, products need to be processed to different degrees according to different product requirements, and the degree of processing needs to be divided. If the accuracy requirements are not high, then a simple rough processing stage is sufficient. The progress requirements of the product are becoming increasingly strict, and the subsequent stages of semi precision processing and precision processing will need to be carried out.
4. Datum first: When using mechanical equipment to process products, it is necessary to determine a reference plane, so that there can be a positioning reference during subsequent processing. After determining the reference plane, the reference plane must be processed first. In precision mechanical parts, there are many workpieces that are not produced in one go, but when the workpiece is produced, it is just a rough model.