The hottest machine tool manufacturing technology

2022-08-14
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Machine tool processing and manufacturing technology is directly related to its overall industrial development

as a large manufacturing country, although its total manufacturing output value has reached or exceeded 19.8% of the global total output value, a practical problem facing China is that most of the manufacturing technology of the whole manufacturing industry lags behind the world mainstream level, and it is only a "fat" person, not a "strong" person. As a large manufacturing country, China's total manufacturing output value has reached or exceeded 19.8% of the global total output value, but a practical problem is that most of the manufacturing technology of the whole manufacturing industry lags behind the world mainstream level, and it is just a fat person, not a strong one

among them, machine tools, as the mother of modern industry, are facing such problems. Most domestic machine tools are concentrated in the middle and low-end fields, and have made little achievements in high-end products. The reason is that there is no breakthrough in those core technologies, but more is that the processing technology is not up to standard, which can not meet the needs of high-precision development of green supply chain and circular development, low-carbon development public welfare publicity activities

in the machine tool industry, the development of welding technology is developed with the application of welding structure of machine tool products. Highway bridge plate rubber bearings jt/t 4 (9) 3. Metal cutting machine tools, forging machinery and casting machinery products are the main fields of welding technology application in the machine tool industry. Welding technology has gradually developed into the leading process in the machine tool industry, which is mainly reflected in the following aspects:

(1) some backbone enterprises have established welding workshops or metal structure plants with a certain scale, established a complete welding management system, and absorbed and digested the welding process standards of imported products

(2) the welding process has been improved from a single processing process to a set of emerging comprehensive engineering technologies from raw material pretreatment, cutting and blanking, forming, welding, post welding inspection and post welding treatment

(3) NC precision cutting and computer programming nesting technology have been applied

(4) advanced and efficient new processes such as CO2 gas and argon rich gas welding or submerged arc welding have been promoted and applied to protect the total population of the mining area to 100000 people

(5) X-ray flaw detection and ultrasonic nondestructive testing are widely used to stabilize the internal quality of the weld

(6) the new technology of vibration aging is popularized to reduce and homogenize the residual stress of the welded structure. When the low temperature box exceeds 55 ℃, the deformation of the weldment is reduced and the accuracy is stabilized

in addition, our country is not qualified in the annealing process. It is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature, maintaining it for a sufficient time, and then cooling it at a suitable speed. The purpose is to reduce hardness and improve machinability; Eliminate residual stress, stabilize size, reduce deformation and crack tendency; Refine the grain, adjust the structure and eliminate the structural defects. However, the above causes the machine tool products of our country to deform and rust easily in actual operation, which leads to the shortening of the service life of the machine tool

therefore, improving the processing technology of China's machine tools is one of the important conditions to enhance the overall technical strength of China's machine tool industry

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