What is the difference between them?From hardness, abrasion resistance analysis!
Artificial diamond is in high temperature (about 2000 DEG C) and high pressure (5 ~ 9GPa) and the metal catalyst under the condition of the graphite into diamond (PCD) tool. The tool of non-ferrous metals and non-metallic materials processing the alloy, ceramics, glass, wood, graphite and other best. With a cutting speed of up to 5000m/min PCD cutting tool Aluminum Alloy above. High speed steel alloy steel is a kind of complicated, containing tungsten, molybdenum, chromium, vanadium and cobalt carbide forming elements about alloy element.
Is the use of metal carbide hard alloy with high heat resistance and high wear resistance (WC tungsten carbide, titanium carbide, tantalum niobium carbide TiC TaC, NbC etc.) and metal binder (cobalt, nickel and molybdenum) powder metallurgy products under high temperature sintering. Its hardness is 93 HRA8, high temperature resistance of 850 ~ 1000 C, has good abrasion resistance, allowing the use of the cutting speed can reach 100 ~ 300m / min, can be a variety of materials including machining hardened steel, hard alloy is commonly used tungsten cobalt (YG), tungsten titanium cobalt (YT) and general hard alloy (YW) three.Diamond is an allotrope of carbon, natural diamond and diamond two.
A total of 10 ~ 25%. Under the condition of heat generated in the high-speed cutting (about 500 C) can still maintain a high hardness of HRC can be more than 60. This is the main characteristic of high speed steel - red hardness. And carbon tool steel after quenching and low temperature tempering, at room temperature has very high hardness, But when the temperature is higher than 200 DEG C, the hardness decreased rapidly, at 500 DEG C hardness has been reduced to a similar degree with annealing state, completely lost the ability of metal cutting, which limits the production of carbon tool steel and high-speed steel cutting tools. The red hardness, make up for the fatal defect of steel with carbon. That can be used in the manufacture of cutting tools.
