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Temperature status and technical regulations for precision machining, Nanjing Precision Engineering Co., ltd

by:NJPE     2020-01-11

In the process of operation, precision precision machining is a process in which the external dimensions or properties of the workpiece are changed by processing machinery.  Precision machining is based on the temperature state of the workpiece to be processed, to a certain extent, it can be divided into cold working and hot working. Generally, it is processed at normal temperature and does not cause chemical or phase changes of workpieces, which is called cold working. Precision  is generally processed above or below normal temperature, which will directly cause chemical or phase changes of workpieces, effectively called thermal machining, cold machining can be divided into cutting and pressure precision machining according to the difference of machining methods. Thermal Processing commonly includes heat treatment, forging, casting and welding. Precision  is mainly a process of changing the external dimensions or functions of workpieces through various machines. According to the temperature of the workpiece to be processed, it is divided into cold working and hot working. The process in machining refers to some skill processes that end continuously for one or a group of workpieces at a working address. The primary feature of forming a process is that the processing target, equipment and operator are not changed, and the content of the process ends continuously. Its skill process can be divided into the following two processes. The technical specification of precision machining is one of the technical documents such as the technical process and operation method of regular parts machining.  It is to put a more reasonable technical process and operation method under specific production conditions, according to the rules, it is written into technical documents and used to guide production after review. Mechanical processing technical regulations usually include the following contents: the technical road of workpiece processing, the specific content of each process, the equipment and technical equipment used, the inspection items and methods of workpieces, cutting parameters, time quota, etc. Fine parts processing technology is to change the shape, scale, relative orientation and nature of the production target on the basis of the process, so that it becomes a finished or semi-finished product.  It is each process, the specific explanation of each process, for example, as mentioned above, rough machining may include blank manufacturing, polishing, etc.  Finishing may be divided into turning, fitter, milling machine, etc.
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