The Effect of Internal Inclusions on the Machining Performance of Copper and Iron Alloys.
Rept. no. 1 (Final), 1972-1977,
CONNECTICUT UNIV STORRS DEPT OF MECHANICAL ENGINEERING
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This study of inclusion behavior has led to a new model of machining based upon three zones of plastic deformation. The additional zone, called the tertiary zone exhibited, under some conditions, a step fracture sequence. This model is the first model interelating material properties to surface integrity, wear, tool-material instability and cutting energy. A friction tester to measure and examine interfacial friction at high normal stress under controlled temperature and environmental conditions, was designed and manufactured. It was shown that SAE 1045 steel vapor deposited with MnS, Cu2, Te, CuS and Pb lowered interfacial friction but that, excepting Pb, the films quickly broke down. It was postulated that the continued low friction performance of Pb resulted from its extensive malleability. Author
- Metallurgy and Metallography
- Fabrication Metallurgy