Abstract
Tungsten Carbide have extremely high hardness and wear-resistivity compared with conventional steel materials, and it is expected that the Tungsten carbide can be applied widely to dies and molds in the near future. In order to develop an efficient machining method of Tungsten Carbide for the dies and molds, series of cutting experiments were carried out to turn the sintered Tungsten Carbide materials with CBN tool. The selected sintered Tungsten Carbide workpieces are those containing Tungsten Carbide grains with mean grain size of 5μm, and 15wt%, 20wt% and 22wt% of Cobalt binder. The sintered CBN tool selected contains super-fine grains of CBN with mean grain size of 1μm. The cutting speed was varied from 10m/min to 60m/min, and the tool wear and the surface roughness were measured. It is concluded that the tool wear is less when cutting the sintered Tungsten Carbide containing larger amount of Cobalt binder. The surface roughness of about 2μm in Rz is obtained.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference5 articles.
1. H. Saito, et. al.: Effects of Co Content and WC Grain Size on Wear of WC Cemented Carbide, WEAR, 261(2006) pp.126-132.
2. H. Suzuki, et. al.: Micro Milling of Hard Material with Micro Milling Tool, Proc. 5th euspen Int. Conf. (2005) pp.577-580.
3. H. Suzuki, et. al.: Development of Ultrasonic Vibration Assisted Polishing Machine for Micro Aspheric Die and Mold, Annals of the CIRP, 55-1(2006) pp.385-388.
4. S. Tsurimoto and T. Moriwaki: Machining of Carbides for Dies and Moulds, Proceeding of the 12th Int. Conf. of euspen (2012) to appear.
5. S.J. Heo, et. al.: Study on Cutting of Cemented Carbides, Journal of JSPE, 69-12 (2003) pp.1724-1728.
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