Precision machining in the process of operation is a kind of processing equipment on the size of the product workpiece or is the process of changing the characteristics, precision machining according to the temperature of the processed product workpiece in the case, at a certain level can be divided into cold drawing and heat treatment. Generally processed at room temperature, and does not cause organic chemical or physical transformation of the product workpiece, called cold drawing.
Precision machining is generally processed at high over or less than room temperature, that will immediately cause the organic chemistry of the product workpiece or the phase transformation of the material, reasonably called heat treatment, cold drawing according to the difference in processing methods can be divided into drilling processing and work pressure processing. Heat treatment commonly has heat treatment process, calcination, forging and welding welding.
Precision machining is mainly the process of modifying the size or function of the product workpiece according to its various mechanical equipment. According to the temperature situation of the processed product workpiece, it is divided into cold drawing and heat treatment. In which the process of machining manufacturing means that there are some professional skills processes that are completed continuously for a product workpiece or a group of product workpieces at a detailed address in a work. The main characteristic of a process is not to modify the overall goal of processing, machinery and equipment and workers, and the content of the process is completed continuously. The expertise process can be divided into the following 2 processes.
