Micro-Machining of Copper and Aluminum Crystals

[+] Author and Article Information
B. F. Von Turkovich

Mechanical and Industrial Engineering Department, University of Illinois, Urbana, Ill.

J. T. Black

Central Electron Microscope Facility; Mechanical and Industrial Engineering Dept., University of Illinois, Urbana, Ill.

J. Eng. Ind 92(1), 130-134 (Feb 01, 1970) (5 pages) doi:10.1115/1.3427697 History: Received July 01, 1969; Online July 15, 2010


The process of chip formation in copper and aluminum single crystals has been examined with a scanning electron microscope. The morphology of the shear planes clearly illustrates that the actual deformation zone (layer or shear front) is an extremely thin and well-defined band of slip planes wherein the predominant deformation takes place. The appearance of the top or upper surface of the chip corresponds to the micro mechanisms operating during the process of machining.

Copyright © 1970 by ASME
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