Abstract
Pin-on-disk wear tests have shown that oxygen is a factor in the wear of commercial tungsten-carbide-based tool materials against cast iron and steel under a variety of conditions. Tool posts were constructed that allowed nitrogen jets to be directed at a tool-workpiece interface during machining operations. A relationship was observed between pin-on-disk and machining tests and it was shown that the wear of tungsten-carbide-based tool inserts could be reduced by reducing the oxygen concentration of the atmosphere at the tool-workpiece interface with a flow of nitrogen.
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