Precision machining is a kind of machining, and it is a processing technology in which the workpiece meets the tolerance required by the drawing. In this process, the performance characteristics and shape and structure of the workpiece will undergo certain changes.

As a discipline of mechanical major, mechanical parts design is one of the most popular majors for science and engineering students and one of the most powerful engineering majors. At present, this major requires not only good engineering knowledge, but also excellent drawing ability and spatial imagination ability. In addition, due to the development of domestic industry and the continuous changes in demand, the demand for talents in the machining industry is also increasing, and the employment rate of machinery majors can reach 95%.

With the development and progress of domestic industry, great changes have taken place in mechanical processing, and precision processing technology has emerged at the historic moment. Many industries, such as household appliances, automobiles, hardware, and medical manufacturing use more or less precision parts. It may be just a component, or it may be the core component of a mechanical device. In short, it is very important and plays an irreplaceable role.

These precision parts have two processes for precision machining, one is hot processing and the other is cold processing. Hot processing is to make the parts undergo biochemical or physical changes under very warm conditions to meet the requirements of shape changes through heat treatment and other methods. . Cold working is to meet the requirements of shape change without chemical and physical changes at room temperature, and generally uses cutting technology. In the future, under the premise of satisfying processing and environmental protection, precision processing will be combined with science and technology to become an important science of sustainable development.

Do you really know what precision machined non-standard parts are?
Non-standard parts, I believe, are the most in demand in the machinery manufacturing industry. The specifications and parameters of most parts in automation equipment or fixtures used in processing and inspection are freely controlled by the enterprise. Therefore, these companies will submit the drawings of the required parts to the corresponding precision processing manufacturers for processing to meet the shape and position tolerances required by the drawings.

From the above content, we can draw a vague concept. Non-standard parts are relative to standard parts. It will not be standardized as a standard part structure, size, marking, and drawings, etc., non-standard parts have strict standards And regulations, there are no relevant parameters, and the company controls the needs of the parts according to their own production, so the manufacturing cost is higher than the standard parts.

At present, there is no very standard classification of non-standard parts, which can be roughly divided into metal non-standard parts and non-metal non-standard parts according to their materials. Metal parts are raw materials of metals, such as brass and aluminum. Tolerance requirements and finish are controlled by customers, and the process is complicated. Non-metal parts are raw materials such as plastic, wood, stone, etc.