For the processing of precision parts, the processing is very strict, and the processing procedures include knife feeding, knife discharging, etc. There are specific requirements for size and precision, such as the number of plus or minus micrometers of 1mm. If the size is too wrong, it will become a waste product. At this time, it is equivalent to having to re process, time-consuming and laborious, and sometimes even the entire processing material will be scrapped, which leads to increased costs. At the same time, the parts are definitely useless. In a word, there are some requirements for materials in precision machining. Not all materials are suitable for machining, such as too soft or too hard materials. The former is not necessary for machining, while the latter cannot.
The process standards of precision parts can be divided into casting, forging, stamping, welding, heat treatment, machining, assembly and other categories according to different processes. The processing process of precision parts generally refers to the general term of the NC processing and machine assembly process of the whole part, while other processes such as cleaning, inspection, equipment maintenance, oil seal, etc. are just auxiliary processes.
Machine tool parts classification: box, base, spindle, flange, sheet metal, etc. There are different equipment corresponding to different processes. The most common ones are lathes (including numerical control and conventional turning), milling machines, planers, grinders, radial drills, wire cutting machines, heat treatment furnaces, etc. The large-scale propeller in the military industry must use a five axis four linkage machine tool.
Shenzhen precision parts processing technology is a technology that stipulates the processing process and operation method of precision mechanical parts. It is a process document that, under specific production conditions, writes a more reasonable process and operation method into a process document in the specified form, and then uses it to guide production after approval.
The processing procedure of precision mechanical parts generally includes the following contents: the processing route of workpiece, the specific contents of each process, the equipment and process equipment used, the inspection items and methods of workpiece, cutting amount, time quota, etc.
