Semi Finishing Spiral Bevel Gear Cutter Silver Lathe Machine Carbide Blade

 Spiral Bevel Gear Cutting Machine Carbide Blade

Hardness testing
Detection method
The hardness test of cemented carbide mainly uses Rockwell hardness tester to test HRA hardness value. PHR series portable Rockwell hardness tester is very suitable for testing the hardness of cemented carbide. 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, and the hardness test can reflect the difference in mechanical properties of cemented carbide materials under different chemical composition, microstructure and heat treatment conditions. The correctness of the process and the research of new materials.
Features
It is a non-destructive test, and the test method is relatively simple. The hardness test of cemented carbide has strong adaptability to the shape and size of the test piece, and the test 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 testing and tensile testing are basically testing the ability of metals to resist plastic deformation, and both tests are testing similar properties of metals to some extent. Therefore, the test results are completely comparable to each other. The cemented carbide tensile test equipment is huge, the operation is complicated, 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, and tensile tests are rarely used.
tool
The hardness of cemented carbide is generally tested with Rockwell hardness tester HRA scale or Vickers hardness tester. In practice, people mainly use Rockwell hardness tester to test HRA hardness. 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 a desktop Rockwell hardness tester. When measuring the hardness of cemented carbide, the PHR series portable Rockwell hardness tester produced by Tianxing can test cemented carbide workpieces with a thickness or diameter of less than 50mm, and can test cemented carbide workpieces with a diameter as small as 2.0mm. 30mm tubular carbide workpiece. It can also be used on production sites, sales sites or material warehouses. This instrument is simple, fast and non-destructive for testing cemented carbide workpieces, and can perform piece-by-piece hardness testing on batches of finished or semi-finished cemented carbide workpieces.