Cemented carbide milling cutters have high hardness, strength, wear resistance and corrosion resistance, and are known as "industrial teeth". They are used for cutting high-hardness materials and are widely used in military, aerospace, mechanical processing, and metallurgy. With the development of downstream industries in fields such as oil drilling, mining tools, electronic communications, and construction, the market demand for cemented carbide milling cutters continues to increase. The editor of our company introduces the future production of high-tech weapons and equipment, the advancement of top-level science and technology, and the rapid development of nuclear energy, which will greatly increase the demand for high-tech and high-quality and stable cemented carbide milling cutter products.
Hard alloy milling cutter hardness testing method: Hard alloy milling cutter hardness testing should use Rockwell hardness tester to test the HRA hardness value. The PHR series portable Rockwell hardness tester is very suitable for testing the hardness of cemented carbide milling cutters. The weight accuracy of the instrument is the same as that of the desktop Rockwell hardness tester, and it is very convenient to use and carry.
Cemented carbide is a kind of metal. The hardness test can reflect the difference in mechanical properties of cemented carbide materials under different chemical composition, structure and heat treatment process conditions. Therefore, the hardness test is widely used in the inspection of cemented carbide properties and the supervision of heat treatment. The correctness of the process and the discussion of new materials.
It is classified as a non-destructive experiment, and the experimental method is relatively simple. The hardness test of cemented carbide has a strong adaptability to the shape and size of the test piece, and the experiment efficiency is high. In addition, there is a certain correspondence between the hardness of cemented carbide materials and other physical properties. For example, cemented carbide hardness test and tensile test are basically testing the ability of metal to resist plastic deformation, and these two tests are testing the similar properties of metal to some extent. Therefore, the test results are completely comparable to each other. Cemented carbide tensile test equipment is huge, the operation is messy, the sample preparation is required, and the test efficiency is low. For many metal materials, there is a conversion table for hardness test and tensile test. Therefore, when testing the mechanical properties of cemented carbide materials, more and more hardness tests are used instead of tensile tests.
Hard alloy hardness is generally tested with Rockwell hardness tester HRA scale or Vickers hardness tester. In practice, people first choose Rockwell hardness tester to test HRA hardness. The PHR series portable Rockwell hardness tester is very suitable for testing the hardness of cemented carbide. This instrument weighs only 0.7kg and has the same accuracy as the desktop Rockwell hardness tester. When measuring the hardness of cemented carbide, the PHR series portable Rockwell hardness tester produced by Tianxing Company can test cemented carbide workpieces with a thickness or a diameter of less than 50mm, and can test cemented carbide workpieces with a diameter as small as 2.0mm, and can test the inner diameter of less than 30mm tubular carbide workpiece. It can also be used at the production site, sales site or material warehouse. This instrument is used to test cemented carbide workpieces easily, quickly, and without damage, and can perform piece-by-piece hardness testing on batches of products or semi-finished cemented carbide workpieces.
