Some common sense before choosing and using diamond cutting blades

Some common sense before choosing and using diamond cutting blades Before choosing and using China cutting disc for metal, users must understand the following common sense about low price disc for metal : 1. The difference between CVD diamond coating and amorphous diamond coating Amorphous diamond (also known as diamond-like carbon) coating is a carbon film deposited by PVD process. It has a part of diamond SP3 bond and a part of carbon SP2 bond; its film hardness is very high, but lower than the hardness of diamond film; its thickness is also thinner than the diamond film we usually deposit. When processing graphite, the life of amorphous diamond coated tools is 2 to 3 times that of uncoated cemented carbide tools. In contrast, CVD diamond is a pure diamond coating deposited by CVD process. The tool life of processing graphite is 12 to 20 times that of cemented carbide tools, which can reduce the number of tool changes and improve the reliability and accuracy of processing. consistency. 2, can not use hard diamond tools to process hardened steel Diamond is composed of carbon atoms. When some materials are heated, they absorb carbon atoms from the diamond and form carbides in the workpiece. Iron is one of these materials. When machining iron-based materials with diamond tools, the heat generated by the friction causes the carbon atoms in the diamond to diffuse into the iron, causing the diamond coating to fail prematurely due to chemical wear.