Wear of Coated Tungsten Carbide Tool In Cutting H.S. Steel Ⅻ

In last part we get conclusions that the wear progress of tungsten carbide tool with (Al,Cr)N coating film is slower than the (Ti,Al)N coated one for the former one has higher hardness and higher oxidation temperature. And this part we go on to other conclusions based on the above experiments and analysis.

3) In addition, because the cutting temperature becomes lower due to the lower coefficient of friction of the (Al,Cr)N coating film, the wear progress of the (Al,Cr)N coated cemented tungsten carbide tool became slower.

4) In cutting hardened sintered steel with a (Al,Cr)N coated cemented tungsten carbide tool,  there  was  little influence of the cutting speed on the tool wear within the range of the cutting speed from 0.50 m/s to 1.00 m/s.

As mentioned above, it was clear that the (Al,Cr)N coated cemented tungsten carbide tool is an effective tool material in cutting hardened sintered steel.

(The end-This article is divided into several parts. Here is part 12. For part 11 please refer to http://news.chinatungsten.com/en/tungsten-information/80698-ti-10452)

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