A THEORETICAL-ANALYSIS OF THE EFFECT OF CRYSTALLOGRAPHIC ORIENTATION ON CHIP FORMATION IN MICROMACHINING

被引:56
作者
LEE, WB
ZHOU, M
机构
[1] Department of Manufacturing Engineering, Hong Kong Polytechnic
[2] Department of Mechanical Engineering, Harbin Institute of Technology, Harbin
关键词
Crystal cutting model - Crystallographic orientation effect - Micromachining chip formation - Microplasticity analysis - Minimum shear strength criterion;
D O I
10.1016/0890-6955(93)90050-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of crystallographic orientation on the shear zone formation in micromachining has been analysed with a single crystal cutting model. Based on the minimum shear strength criterion, a range of shear angle values is found to exist. The most likely shear plane angle is the one that has the most negative texture softening factor among the ones with the same minimum shear strength. Theoretical findings for the shear angle and cutting force variations compare well with published experimental data. The significance of the microplasticity analysis to the understanding of chip formation in micromachining is discussed.
引用
收藏
页码:439 / 447
页数:9
相关论文
共 12 条
[1]  
Konig, Spenrath, Proc. 6th Int. Precis. Engng Seminar, (1991)
[2]  
Sato, Kato, Tuchiya, Effects of Material Anisotropy upon the Cutting Mechanism, Transactions of the Japan Institute of Metals, 9, (1978)
[3]  
Ueda, Iwata, Ann. CIRP, 29, (1980)
[4]  
Black, Shear Front-Lamella Structure in Large Strain Plastic Deformation Processes, Journal of Engineering for Industry, 2, (1972)
[5]  
Shaw, Metal Cutting Principles, (1984)
[6]  
Merchant, J. Appl. Phys., 16, (1945)
[7]  
Taylor, J. Inst. Metals, 62, (1938)
[8]  
Bishop, Hill, XLVI. A theory of the plastic distortion of a polycrystalline aggregate under combined stresses., The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 42, (1951)
[9]  
Yamagata, Yoshida, Fukazawa, Trans. Japan Inst. Metals, 17, (1976)
[10]  
Lee, Chan, Acta Metall. Mater., 39, (1991)