A Model for the Contact Conditions at the Chip-Tool Interface in Machining
作者： B. Ackroyd , S. Chandrasekar , W. D. Compton
DOI: 10.1115/1.1537747
关键词:
摘要: A high-speed photographic study has been made of the chip-tool interface and its evolution when cutting pure metals with optically transparent sapphire tools. The use a high speed camera in conjunction an optical microscope enabled details interface, including velocity field along to be resolved at spatial temporal resolution while speeds between I mm/sec 2000 mm/sec. results show contact this composed four distinct regions: region stagnation edge, retardation adjoining region, sliding beyond followed by metal transfer or sticking that is located furthest away from edge alongside boundary contact. chip tool appear intimate over stagnation, retardation, regions, occurring much zone These observations have provided direct experimental evidence for model conditions proposed Enahoro Oxley based on analytical considerations. Cutting experiments non-oxide tools such as aluminum steel suggest description equally applicable materials other than sapphire.
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