基于MSIWOA算法的SLS聚酰胺制件工艺参数优化  

Optimization of Process Parameters for SLS Polyamide Parts Based on MSIWOA

作　　者：赵静 王超 范恒亮 罗殿宇 孙薇薇 丁国华 李宇航 彭浩杰 ZHAO Jing;WANG Chao;FAN Hengliang;LUO Dianyu;SUN Weiwei;DING Guohua;LI Yuhang;PENG Haojie(School of Mechanical and Vehicle Engineering,Bengbu University,Bengbu 233030,China;Additive Manufacturing Engineering Research Center,Bengbu 233030,China;School of Mechanical Engineering,Anhui Institute of Science and Technology,Chuzhou 233100,China)

机构地区：[1]蚌埠学院机械与车辆工程学院,安徽蚌埠233030 [2]安徽省增材制造工程研究中心,安徽蚌埠233030 [3]安徽科技学院机械工程学院,安徽滁州233100

出　　处：《塑料工业》2024年第5期108-115,159,共9页China Plastics Industry

基　　金：安徽省高校科学研究重点项目(2023AH052932,2023AH052937);安徽高校协同创新项目(GXXT-2023-025,GXXT-2023-028,GXXT-2023-029,GXXT-2023-099);蚌埠市科技计划项目(2023gx09)。

摘　　要：以聚酰胺粉末为实验材料,以力学性能为评价目标,研究了激光功率、扫描间距、摆放角度及他们两两交互作用对选择性激光烧结(SLS)制件抗拉强度的影响,通过扫描电镜观察断口形貌揭示了工艺参数对制件成型的影响机理,通过响应面设计得到了工艺参数与抗拉强度间的回归方程,分析了模型的有效性与准确性。以回归方程为目标函数,使用混合策略改进的鲸鱼优化(MSIWOA)算法进行SLS制件抗拉强度的优化,得到最优工艺参数,并与鲸鱼优化(WOA)算法的优化结果及实验验证结果进行比对。结果表明,MSIWOA算法对SLS聚酰胺制件工艺参数的优化具有较高的准确性和较好的可行性,可为SLS制件力学性能的提升提供技术方法。Polyamide powders were utilized as the test material to assess the mechanical properties of selective laser sintering(SLS)parts.The investigations focused on the influences of laser power,scanning spacing,placing angle,and their pairwise interactions on the tensile strength of the parts.The influence mechanisms of process parameters on the part forming were revealed by the observation of fracture morphology using a scanning electron microscope.Moreover,the regression equations between the process parameters and tensile strength were obtained via a response surface design,assessing the model s validity and accuracy.Subsequently,the regression equations were taken as the objective functions.The mixed-strategy-based improved whale optimization algorithm(MSIWOA)was employed to optimize the tensile strength of SLS parts,and the optimal process parameters were compared with the results from the whale optimization algorithm(WOA)and experimental data.The results show that the MSIWOA exhibits higher accuracy and feasibility in optimizing the process parameters of SLS polyamide parts,offering technical methods for enhancing the mechanical properties of SLS parts.

关 键 词：聚酰胺 选择性激光烧结 工艺参数优化 MSIWOA 

分 类 号：TQ323[化学工程—合成树脂塑料工业]