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Proceedings Paper

Optimization of laser processing techniques and parameters for laser transformation hardening with multi-objectives
Author(s): Gang Wu; Lei Hong
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Paper Abstract

The new idea of the optimum controlling of laser processing technique and parameters with multi-objectives and multi-variables was put forth. With the comprehensive discussion about the quality index of laser transformation hardening (LTH), a hierarchical structure of the LTH quality index system and a decision-making framework model of the quality control were set up. Then, based on the conclusions of the sensitivities of LTH parameters' influences on the case indexes, the principle of LTH's parameters optimization was discussed by means of fuzzy decision method. With the combination of the principle and the sectionlly changing scanning velocity technique, which can effectively the uniformity of longitudinal case-distribution, a decision-making framework for optimal controlling on the laser scanning technique and the parameters with multi-objectives were put forward. An optimization model was developed and the validity of the model was verified both by theoretical computation and experimental results.

Paper Details

Date Published: 4 January 2008
PDF: 10 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 68250H (4 January 2008); doi: 10.1117/12.754312
Show Author Affiliations
Gang Wu, Shanghai Maritime Univ. (China)
Lei Hong, Shanghai Maritime Univ. (China)

Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

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