Tungsten belongs to the group of refractory metals, which possess high density, high strength at high temperaturesand good resistance to chemicals. Machining of tungsten heavy alloys is a very demanding process due to theexceptional mechanical and thermal properties of centered high tungsten alloys as a workpiece material. In thispaper, the performance of three cutting materials: uncoated cemented carbide, ceramic and chromium aluminumtitanium nitride coated carbide inserts is investigated in turning HE-395 tungsten alloy. The paper examines thecutting forces and wear mechanisms involved and presents a comparison of the tool life of the different toolmaterials.
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