Selection of Near Optimal Laser Cutting Parameters in CO2 Laser Cutting by the Taguchi Method
Identification of laser cutting conditions that are insensitive to parameter variations and noise is of great importance. This paper demonstrates the application of Taguchi method for optimization of surface roughness in CO2 laser cutting of stainless steel. The laser cutting experiment was planne...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
VSB-Technical University of Ostrava
2013-12-01
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| Series: | Transactions of the VSB : Technical University of Ostrava |
| Subjects: | |
| Online Access: | http://transactions.fs.vsb.cz/2013-2/1962.pdf |
| Summary: | Identification of laser cutting conditions that are insensitive to parameter variations and noise
is of great importance. This paper demonstrates the application of Taguchi method for optimization
of surface roughness in CO2 laser cutting of stainless steel. The laser cutting experiment was planned
and conducted according to the Taguchi’s experimental design using the L27 orthogonal array. Four
laser cutting parameters such as laser power, cutting speed, assist gas pressure, and focus position
were considered in the experiment. Using the analysis of means and analysis of variance, the
significant laser cutting parameters were identified, and subsequently the optimal combination of
laser cutting parameter levels was determined. The results showed that the cutting speed is the most
significant parameter affecting the surface roughness whereas the influence of the assist gas pressure
can be neglected. It was observed, however, that interaction effects have predominant influence over
the main effects on the surface roughness.
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| ISSN: | 1210-0471 1804-0993 |