2010 Volume 18 Issue 4 Pages 49-56
Evaluation and optimization by generic functions were used in an attempt to improve the processing capability and productivity of laser machining on coated surfaces. The preset output value of the laser machine tool was used as an input and removed weight was used as an output. The pattern width, representing the pattern shape, was used as a noise factor, processing patterns were allocated for control factors, and parameter design was performed for two types of machine tools with different laser pumping sources. For a diode-pumped laser, although the gain was only 2.6 db, some reproducibility was obtained. For alamp-pumped laser, however, reproducibility could not be obtained. To improve the gain, an S/N evaluation was carried out for each signal. In addition,to analyze the reasons why reproducibility could not be obtained, the JIS Z9090 procedure was carried out to clarify the separated S/N ratio and measurement errors.
