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基于快速蜜蜂试验法的304不锈钢激光焊工艺优化

Optimization of 304 stainless steel laser welding process based on the fast bees test method

  • 摘要: 基于工程师打样中确定合理工艺参数组合的工程背景,借鉴三元蜜蜂算法开发了用于工艺参数寻优的快速蜜蜂试验法. 针对304不锈钢板激光焊中获得较高抗拉强度需求,比较了响应面法、基于响应面法拟合方程的蜜蜂算法优化求解和快速蜜蜂试验法3种方法下所获优化结果. 结果表明,前两种方法所预测最优工艺参数获得抗拉强度均近似于688 MPa,而快速蜜蜂试验法求解的最优工艺参数获得抗拉强度734 MPa. 快速蜜蜂试验法划分清晰及针对性强的优化特点,使其相比响应面法减少试验次数的同时避免了忽略不同区域中概率密度不同的问题. 所开发的快速蜜蜂试验法能够作为一种学习成本低与重视结果突出试验点的试验方法,帮助工程师在打样过程中快速获得更优工艺参数组合.

     

    Abstract: Based on the engineering background of determining the reasonable combination of process parameters in engineers' proofing, a fast bees test method for optimizing process parameters was developed with reference to the ternary bees algorithm. Aiming at the high tensile strength requirement of 304 stainless steel plate in laser welding, the optimization results obtained by response surface method, bees algorithm optimization solution based on the fitting equation of response surface method and fast bees test method were compared. The optimal solutions predicted by the previous two methods were approximately 688 MPa, while the optimal process parameters obtained by the fast bees test method obtain the tensile strength of 734 MPa. The results show that compared with the response surface method, the fast bees test method can reduce the number of tests and avoid the problem of ignoring the different probability density in different regions. The fast bees test method can be used as a test method with low learning cost and emphasis on the result to highlight the test point, which can help engineers quickly obtain a better combination of process parameters in the process of proofing.

     

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