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Optimization of CO2 Laser Cutting Process using Taguchi and Dual Response Surface Methodology

机译：田口和双重响应面法优化CO2激光切割工艺

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摘要

Selection of optimal cutting parameter settings for obtaining high cut quality in CO2 laser cutting process is of great importance. Among various analytical and experimental optimization methods, the application of Taguchi and response surface methodology is one of most commonly used for laser cutting process optimization. Although the concept of dual response surface methodology for process optimization has been used with success, till date, no experimental study has been reported in the field of laser cutting. In this paper an approach for optimization of CO2 laser cutting process using Taguchi and dual response surface methodology is presented. The goal was to determine the near optimal laser cutting parameter values in order to ensure robust condition for minimization of average surface roughness. To obtain experimental database for development of response surface models, Taguchi’s L25 orthogonal array was implemented for experimental plan. Three cutting parameters, the cutting speed (3, 4, 5, 6, 7 m/min), the laser power (0.7, 0.9, 1.1, 1.3, 1.5 kW), and the assist gas pressure (3, 4, 5, 6, 7 bar), were used in the experiment. To obtain near optimal cutting parameters settings, multi-stage Monte Carlo simulation procedure was performed on the developed response surface models.
机译：选择最佳切割参数设置以在CO2激光切割过程中获得高切割质量非常重要。在各种分析和实验优化方法中，田口和响应面方法的应用是激光切割工艺优化中最常用的方法之一。尽管用于过程优化的双响应表面方法的概念已成功使用，但迄今为止，在激光切割领域尚无实验研究报道。本文提出了一种使用田口和双重响应面方法优化CO2激光切割工艺的方法。目的是确定接近最佳的激光切割参数值，以确保将平均表面粗糙度降至最低的稳健条件。为了获得用于开发响应面模型的实验数据库，田口的L25正交阵列用于实验计划。三个切割参数，切割速度（3、4、5、6、7 m / min），激光功率（0.7、0.9、1.1、1.3、1.5 kW）和辅助气压（3、4、5， 6、7 bar）用于实验。为了获得接近最佳的切削参数设置，对已开发的响应曲面模型执行了多阶段蒙特卡洛模拟程序。

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