There are a lot of knowledge about machining, but for us, this knowledge is not enough to summarize comprehensively, and there will be some omissions. Therefore, we need to supplement and update the knowledge so that we can master more updated knowledge in time, so that we can have a comprehensive and detailed understanding of machining.
The production process of machining includes transportation and preservation of raw materials, production preparation, rough embryo manufacturing, parts processing and heat treatment, product assembly and commissioning, etc. By machining in Dalian, the shape, size and performance of raw materials can be changed to meet the requirements of finished products. This process is also called technological process, which is composed of one or several sequential processes.
In machining process route, heat treatment process is often arranged. The position of heat treatment process is arranged as follows: in order to improve the cutting performance of metal, such as annealing, normalizing, quenching and tempering, it is generally arranged before mechanical processing. In order to eliminate internal stress, such as aging treatment, quenching and tempering treatment, it is generally arranged after rough machining and before finishing.
After receiving the machined parts, full-time acceptance personnel shall be assigned to accept the materials, specifications, models and quantities of machined parts according to the requirements of the contract and drawings. Generally, it is processed at room temperature without causing chemical or phase changes of the workpiece, which is called cold processing. Generally, the processing above or below the normal temperature will cause the chemical or phase changes of the workpiece, which is called hot processing. Cold working can be divided into cutting and pressure machining according to the difference of processing methods. Heat treatment, forging, casting and welding are common hot working.
With the development and progress of mechanical processing skills, the structure of mechanical processing equipment is becoming more and more disordered. Mechanical processing equipment is the basic equipment of the manufacturing industry and bears a very large workload in mechanical manufacturing. Therefore, the normal work of mechanical processing equipment is of great significance to ensure the quality of processed products and reduce operating costs.
