Estimation of surface absorptivity and surface temperature in laser surface hardening process

Yann Shouh Sun, Cheng I. Weng, Tei-Chen Chen, Wang-Long Li

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)

摘要

A two-dimensional, quasi-static, inverse heat conduction problem (IHCP) is implemented to investigate the absorption efficiency of surface coatings in laser surface hardening process. The analysis of IHCP includes the utilization of the method of direct sensitivity coefficient and the measurement of interior temperatures nearby the laser heating surface. The results shows that the estimation of surface absorptivity generally agrees with that observed by experimental works. It is realized that the different kinds of coating make influences on the surface absorptivity as well as surface temperature significantly. Furthermore, the power density and scanning speed of laser beam to control the quality of surface hardening may be determined based on the informations of heat flow in the workpiece.

原文English
頁(從 - 到)3658-3664
頁數7
期刊Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
35
發行號6 SUPPL. A
出版狀態Published - 1996 六月

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Engineering(all)

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