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Abstract
The stress, strain, and temperature at the interface between tool and work material during metal cutting are such as to promote seizure. Conditions of seizure normally exist over part of the interface during most metal-cutting operations. The wear processes that are significant on those parts of the interface where seizure is complete are considered separately from those in areas where contact is localized and intermittent. Examination of worn tools suggests that two major wear processes take place on cemented carbide under each of these sets of conditions. It is believed to be unlikely that abrasion plays a major role in the wear of cemented carbide tools except in special circumstances.
The influence of powder-metallurgical processing variables in the production of cemented carbide tools is considered in relation to each of the main wear processes.
Notes
* Manuscript received 2 June 1969. Contribution to a Symposium on “Lubrication, Friction, and Wear (Tribology) in Powder Metallurgy” to be held in Eastbourne on 24-26 November 1969.