Research on the application situation of superhard

2022-08-23
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Research on the application situation of superhard tools in China in 2012

after years of research and exploration, China has made great progress in superhard tools, but the application of superhard tools in production is not widespread. After more than ten years of development and application, this technology has achieved great economic and social benefits. It is understood that the production of superhard cutting tools in China is applied in three aspects: roll processing industry. Many large domestic roll enterprises have used superhard cutting tools for rough turning, rough turning and fine turning of chilled cast iron, hardened steel and other rolls, and have achieved good results in hard turning with superhard cutting tools. After more than ten years of development, promotion and application, this technology has achieved great economic and social benefits

roll processing industry

many large domestic roll enterprises have used superhard cutters to carry out rough turning, rough turning and fine turning of chilled cast iron, hardened steel and other rolls, and have achieved good benefits. 7 on average, the processing efficiency is increased by 2 ~ 6 times, and the processing man hours and power are saved by 50 ~ 80%. For example, when the roller factory of Wuhan Iron and steel company launches rough turning and semi fine turning of seed cast iron rollers with hardness of hs60 ~ 80 and curling, the cutting speed is increased by three times, and one roller per vehicle saves more than 400 yuan of power and labor costs, and nearly 100 yuan of tool costs, which has achieved great economic benefits. For example, when turning 86CrMoV7 hardened steel rolls of hrc58 ~ 63 with cermet tools (vc=60m/min, f=0.2mm/r, ap=0.8mm), the continuous cutting roll path reaches 15000m (the maximum width of the wear belt on the tool surface behind the tool tip vbmax=0.2mm), which meets the requirements of turning instead of grinding

industrial pump processing industry

at present, 70% - 80% of domestic slurry pump manufacturers have adopted superhard cutters. Slurry pump is widely used in mining, electric power and other industries. It is a product urgently needed at home and abroad. Its sheath and guard plate are cr15mo3 high hard iron castings of HRC63 ~ 67. In the past, it was difficult for various cutters to turn this material, so the process of annealing, softening, rough machining, and then quenching was adopted. After using superhard cutting tools, one-time hardening processing was successfully realized, and two processes of annealing and re quenching were eliminated. Dr. Deakin added that a lot of man hours and power were saved

automobile processing

in the processing of crankshaft, camshaft, transmission shaft, cutting tools, measuring tools and equipment maintenance in automobile, tractor and other industries, we often encounter the processing problems of hardened workpieces. For example, a locomotive and rolling stock factory in China needs to process the bearing inner ring in equipment maintenance. The hardness of the bearing inner ring (material GCr15 steel) is HRC60, and the inner ring diameter is f285mm. The grinding process is adopted, and the grinding allowance is uneven, which takes 2H to grind well; First, use a super hard tool and process it into an inner ring in only 45 minutes

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