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CNC cavity precision parts machining

Productivity: 
10000
Brand: 
Bergek
Transportation: 
Ocean,Land,Air
Place of Origin: 
China
Supply Ability: 
800000
Port: 
ShenZhen

Product Description

With China's continuous modernization process, CNC high-speed processing technology with a higher degree of automation, high precision, and high efficiency of advantages, has become a key technology and an important basis for the machinery manufacturing industry. The progress of science and technology requires higher and higher productivity and quality of mechanical products. In order to improve the competitiveness of manufacturing enterprises, it is necessary to reduce the processing cost, shorten the product cycle, and promote the further improvement of product quality. This paper analyzes the NC machining technology of precision parts and puts forward the specific machining strategy of precision parts by analyzing the characteristics of high-speed machining technology.


In the machining of precision die parts, the application of high-speed machining technology can avoid electrode manufacturing and replace the grinding and polishing process and electric spark. It can process highly hardened die steel parts with high system rigidity requirements, complex curved surfaces, and large overburdened parts, and greatly reduce the polishing amount and bench grinding. High-speed CNC machine tools and other equipment, with a large investment, high technical content. In the process of high-speed machining precision die parts, it is necessary to grasp the high-speed machining technology and strategy accurately and choose the high-speed machining machine tools and Cutting Tools reasonably. At the same time, reasonable selection of machining route and cutting mode can be used to make accurate and reliable working parts of the precision mold.


Advantages of CNC high-speed machining technology


(1) Improve productivity


The cutting dosage directly determines the productivity of the product. Reasonable cutting dosage can guarantee productivity. The cutting amount of high-speed machining is equivalent to the cutting amount of a large diameter cutter, large cutting depth, and large cutting width in the traditional machining way. In order to improve the processing efficiency, a small diameter cutter, small cutting depth, and small cutting width can be used for many times fast cutting. Compared with the traditional machining method, the feed speed of high-speed machining can reach 5~10 times, improve the material removal rate 3~6 times, and promote the production efficiency greatly.


(2) Improving the quality of processed products

Aluminum alloy shell processing custom

Because the cutting force of high-speed machining is greatly reduced, there is little system vibration between the tool and the machined parts, which can make the surface machining quality achieve good, and can be used as the final finishing process of mirror machining machinery. At the same time, because the spindle has a higher speed, increase the contact frequency of the workpiece, resulting in high-frequency compressive stress on the surface, so that the surface roughness of the machined surface is greatly reduced, promoting the contact rigidity of the machined surface and the improvement of the wear resistance of parts. Especially the application of high-speed machining technology in the mold industry, the average life of the mold can be increased by 3 times.


Nc machining strategy for precision parts


(1)Cnc Machining Cutting mode and cutting mode


Along milling should be adopted as far as possible in high-speed cutting. In down milling, the main stress of the blade is compression stress, while in reverse milling, the blade is subjected to tensile stress, which reduces the service life of the tool because of the bad stress state.


(2) the arrangement of the processing sequence


Considering both the cut material and the machined geometry, minimize the number of machining steps and use continuous methods, such as bias paths, which are better than balanced paths, cutting from the outside of the material and avoiding vertical cutting. In order to avoid knife marks, different steps should be used in the critical area of the parts of the finishing path, the use of a single tool finishing critical area, as far as possible not to change the tool. The reason why the machining surface after finishing appears knife marks are because the tool is set wrong; Use short knives as far as possible to avoid wear caused by using long knives.

cnc machining

Where conditions permit, parts are reoriented and machined in difficult-to-machined areas using short tools. In the actual machining tool path, other requirements and important requirements need to be met simultaneously. In high speed, high-temperature processing, the use of coated carbide cutting tools, without the use of cutting liquid, both can produce high cutting efficiency. Lubrication oil + gas cooling way of dry cutting, processing of chip can make use of high-pressure gas blow away quickly, and with a lot of cutting heat, at the same time in the cutter blade and workpiece surface by the atomization of the lubricating oil can form a very thin layer of protective film, microscopic can increase the surface quality of parts, still can make the knives' service life and effective extension. As one of the most basic industries in China, the development level of the machinery manufacturing industry has a direct impact on China's economic level, can improve the gross domestic product, and promote the qualitative leap of China's economy.


At present, China has begun to attach great importance to major scientific and technological projects and has increasingly improved the comprehensive level of science and technology. At present, the high-speed machining technology of precision parts has become the top technology in the world manufacturing technology. High-speed processing can not only make the production efficiency doubled, but also the surface quality of parts and processing accuracy is a very good improvement, with the advantages of traditional processing can not be compared, can effectively solve the processing problems of some special materials that are difficult to solve in the conventional processing.


As a systematic engineering, high-speed machining of precision dies parts will become an inevitable trend of the modern machinery manufacturing industry. With the widespread popularity and application of CNC machining technology in the domestic manufacturing industry, CNC high-speed machining technology with CNC machining characteristics and high precision, and widely used in the high-precision mold industry, automobile industry, aerospace industry.

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Product Categories : CNC Machining