The hottest industrial scalpel helps the automobil

2022-08-24
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Industrial "scalpel" helps the automobile manufacturing industry

with the continuous improvement of the production program of automobile manufacturing, the requirements of automobile parts in the application of new materials, such as large mechanical wear, machining accuracy, shape and position, and surface quality, are further improved. For example, quenched alloy steel is a very typical application. How to produce safely, efficiently and at low cost has been perplexing many auto parts manufacturers, which has put forward new requirements for the tool manufacturing industry. Tools have been transformed from low-value consumables into products with high added value and high-tech content. The progress made in tool materials, tool coatings, tool structures, and tool cutting parameters has pushed the tool manufacturing industry forward towards the road of high efficiency, high precision, high reliability, and specialization. The development of new tool materials, wear-resistant coatings, tool structures, and digital manufacturing technologies have been widely used in actual production to seize the market

now the core technology to achieve high-efficiency manufacturing is high-speed cutting, which has "three highs", namely, high cutting speed, high spindle speed and high feed speed. As a result, high-speed cutting requires high cutting tool materials and structures. In cutting automobile parts with high hardness, manufacturers often hope to obtain high cutting efficiency under the premise of quality assurance, which is more different from the situation of "many, small and scattered" in China's medical device enterprises. High performance tools should meet the characteristics of high speed, high precision and high efficiency, which requires that high-performance tools should have:

①  High hardness and wear resistance. The hardness of high-performance tool materials must be higher than that of ordinary processing tool materials, generally above 65hrc. The higher the hardness of tool materials, the better their wear resistance

②  High strength and toughness. The cutting tool material should have high strength and toughness in order to withstand cutting force, vibration and impact and prevent brittle fracture of the tool

③  Good stability and thermal hardness. The cutting tool material should have good heat resistance, be able to withstand high temperature and have good oxidation resistance

④  Good high temperature mechanical properties. Tool materials should have good high temperature strength, high temperature hardness and high temperature toughness

⑤  Small chemical affinity. The chemical affinity between tool material and workpiece is small. High performance cutting tool materials mainly include diamond, cubic boron nitride, alumina based and silicon nitride based composite ceramics, surface coated cemented carbide, ultra-fine grain cemented carbide, etc., but cooling measures must be taken

thanks to machine tool and cutting tool technology, composites, titanium alloys, chromium nickel iron alloys and other materials have been almost impossible to process in the past, and now many manufacturers have been able to process with confidence and efficiency. By integrating a variety of innovative coatings and grooves, coupled with advanced processing technology and methods, some special tools can not only provide process safety, but also improve production efficiency and output

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