What is the machining allowance?

2023-12-15 11:18:45

With the development of new technology and new technology, the application of precision casting, cold extrusion, direct accumulation and other molding technologies and engineering plastics in machinery manufacturing is becoming more and more mature, developing from close to the shape of parts to precision forming and profiling. With free forming manufacturing instead of cutting, some forming parts do not need mechanical processing, can be used directly, so that not only can save the energy consumption of conservative blank manufacturing, material consumption, but also greatly reduce the manufacturing cycle and production costs of the product. The main source of pollution in the machining process, and the cost of cutting fluid accounts for about 16 of the cost of parts manufacturing. The most effective way to solve the problems caused by cutting fluid is to use green cutting technology. Shenzhen Machinery Processing Factory

In the process of mechanical processing and production, the process of directly changing the shape, size and performance of raw materials (or blanks) to make them into finished products is called technological process. The main part of the production process. For example, the casting, forging and welding of blanks; the heat treatment to change the performance of data; the machining of parts, etc., all belong to the process. The technological process is composed of one or several sequential processes. In order to process qualified parts, the thickness of the layer of metal that must be cut from the blank is called the machining allowance. Machining allowance can be divided into process allowance and total allowance. The thickness of the metal layer that needs to be removed in a certain process is called the machining allowance of the process. The total margin to be removed from the blank to the scrap is called the total margin, which is equal to the sum of the margin of each process on the corresponding appearance. The purpose of leaving machining allowance on the workpiece is to remove t