Machining refers to the process of changing the dimensions or properties of a workpiece through a mechanical device. According to the difference in processing methods can be divided into cutting processing and pressure processing.
Production process
The production process of a machine refers to the whole process of making a product from raw materials (or semi-finished products). For machine production, it includes the transportation and preservation of raw materials, the preparation of production, the manufacture of blanks, the processing and heat treatment of parts, the assembly and commissioning of products, painting and packaging. The content of production process is very extensive, modern enterprises use the principles and methods of system engineering to organize production and guide production, and regard the production process as a tool
A production system with inputs and outputs.
In the production process, any change in the shape, size, position and nature of the production object, so that it becomes a finished product or semi-finished product process is called the process. It is a major part of the production process. The process can be divided into casting, forging, stamping, welding, machining, assembly and other processes, mechanical manufacturing process generally refers to the parts of the machining process and the sum of the machine assembly process, other processes are called auxiliary processes, such as transportation, storage, power supply, equipment maintenance and so on. The process is composed of one or several sequential processes, and a process is composed of several work steps.
The working procedure is the basic unit of the machining process. The so-called process refers to the part of the process that is continuously completed by a (or a group of) workers on a machine tool (or a work place) on the same workpiece (or several workpieces at the same time). The main feature of a process is that it does not change the processing object, equipment and operator, and the content of the process is continuously completed
The working step is under the condition that the machining surface is unchanged, the processing tool is unchanged and the cutting amount is unchanged
The cutting tool is also called the working stroke, which is the work step completed by the processing tool on the processing surface.
To formulate the machining process, it is necessary to determine the workpiece to go through several processes and the sequence of processes, and only the brief process of listing the name of the main process and its processing sequence is called the process route.
The formulation of the process route is to formulate the overall layout of the process, and the main task is to choose the processing method of each surface, determine the processing order of each surface, and the number of works in the entire process. The formulation of the process route must follow certain principles.
Types of production are generally divided into three categories:
1. Single piece production: The production of different structures and different sizes of products individually, and rarely repeated.
2. Mass production: The same product is manufactured in batches throughout the year, and the manufacturing process has a certain repeatability.
3. Mass production: A large number of products are manufactured, and most work locations often repeat the processing of a certain process for a certain part.
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