EFFECTS OF OPERATING PARAMETERS ON SURFACE QUALITY FOR LASER CUTTING OF MILD-STEEL

被引：10

作者：

NEIMEYER, R

SMITH, RN

KAMINSKI, DA

机构：

[1] Department of Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute, Troy, NY

来源：

JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME | 1993年 / 115卷 / 03期

关键词：

D O I：

10.1115/1.2901673

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An experimental program based on wedge-shaped workpieces was carried out to provide an understanding of the relationship between C02 laser cutting parameters and cut surface quality. Based on a factorial experiment, workpiece feedrate and assist gas pressure were found to be significant parameters in determining average surface roughness, for the range of operating conditions which would yield minimally acceptable cuts. The wedge experiments indicate that the average surface roughness may be best at high feedrates and low assist gas pressures, over the range of parameters tested. Because the repeatability band of the process is large at high feedrates, conclusions on the effect of feedrate are not as certain as those on the effect of assist gas pressure. Workpiece thickness showed little effect on cut surface quality for this range of thickness. However, there is a strong relationship between cutting parameters and a transition zone noticed on the cut surface. While profiles of the cut surface at the top and bottom edges yield the same values for average surface roughness, there is a significant visual difference in the striation pattern. © 1993 ASME.

引用

页码：359 / 362

页数：4

共 11 条

[1] Arata Y., Maruo H., Miyamoto I., Takeuchi S., Dynamic Behavior in Laser Gas Cutting of Mild Steel, Trans. JWRI, 8, 2, pp. 15-26, (1979)
[2] Battista A., Coherent General Inc, Personal Communication, (1988)
[3] Berloffa E.H., Witzmann J., Laser Materials Cutting and Related Phenomena, Industrial Applications of High Power Lasers, pp. 96-101, (1984)
[4] Chryssolouris G., Laser Machining, Theory and Practice, (1991)
[5] Decker I., Ruge J., Atzert U., Physical Models and Technological Aspects of Laser Gas Cutting, Industrial Application of High Power Lasers, pp. 81-87, (1984)
[6] Llewellyn S.A., Laser Cutting—State of the Art, The Laser Vs the Electron Beam in Welding, Cutting, and Surface Treatments, pp. 171-181, (1985)
[7] Mazumder J., The State-of-the-Art of Laser Materials Processing, Interdisciplinary Issues in Materials Processing and Manufacturing, 2, pp. 599-630, (1987)
[8] Rajendran N., Pate M.B., The Effect of Laser Beam Velocity on Cut Quality and Surface Temperature, Collected Papers in Heat Transfer 1988, 104, pp. 121-128, (1988)
[9] Shinada K., Et al., Proc. Int. Conf. on Welding Research in The, pp. 27-29, (1980)
[10] Steen W.M., Kamalu J.N., Laser Cutting, Laser Materials Processing, pp. 15-111, (1983)

← 1 2 →