machined can be divided into multiple units, including process, installation, work position, work step, and cutter. Yu Chen as Hangzhou machinery processing plant, Longmen processing center processing, providing precision parts processing, polyhedron machinery processing.

    under certain production conditions, ensuring processing quality and minimum production cost is the basic principle of making process rules. The work of making parts machining process can be roughly divided into four stages:
    1. preparatory work needs to do the necessary preparatory work before drawing up the process route of the part mechanical processing, including the calculation of the production program, the determination of the production type, the process analysis of the parts, and the determination of the type of the blank.

    2. process planning stage this is the core of the formulation of process regulations. The main content is to select the positioning datum, select the parts surface processing method, divide the processing stage, arrange the processing order and process integration.

    after the design phase of the 3. process design stage, this stage is used to determine the process contents of each process in the process route, including the determination of the machining allowance, the process size and its tolerance, the selection of machine tool and the process equipment, the determination of the cutting amount, the calculation of the time quota, and so on.

    4. to fill in the process specification for the parts of the process documents, the relevant contents should be filled in a variety of cards for implementation. These cards are generally referred to as the process documents. Completing the process document is the last task of the part process planning. There are many kinds of process documents. According to the actual needs of production, the corresponding process documents can be selected as the process rules used in production.