| 引用本文: | 刘海华,高文强,赵淘,韩亮,张文浩.基于电弧熔丝增材制造的复合路径规划方法[J].材料科学与工艺,2022,30(1):53-60.DOI:10.11951/j.issn.1005-0299.20210131. |
| LIU Haihua,GAO Wenqiang,ZHAO Tao,HAN Liang,ZHANG Wenhao.A compound path planning method based on wire and arc additive manufacturing[J].Materials Science and Technology,2022,30(1):53-60.DOI:10.11951/j.issn.1005-0299.20210131. |
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| 摘要: |
| 电弧熔丝增材制造(WAAM)适用于具有复杂几何特征的大尺寸金属构件的快速成形,而合理的路径规划方法可以极大的提升构件的几何还原度和表面质量。本文分析了常用路径规划方法的优缺点,提出轮廓偏置路径和Z字形路径相结合的复合路径规划方法,并对轮廓偏置路径的偏置距离进行了优化。优化结果表明轮廓偏置路径可以提高构件轮廓的几何还原度,Z字形路径可以消除轮廓偏置路径几何中心易形成孔隙的缺陷,提高成形质量。利用数控弧焊增材制造系统进行实验验证,结果表明该复合路径规划方法对于多数大尺寸复杂结构件的成形路径规划具有很好的可行性和适用性。 |
| 关键词: 增材制造 复合路径规划方法 几何还原度 表面质量 轮廓偏置路径 Z字形路径 |
| DOI：10.11951/j.issn.1005-0299.20210131 |
| 分类号:TH165 |
| 文献标识码:A |
| 基金项目:天津市教委科研计划项目(2019KJ011). |
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| A compound path planning method based on wire and arc additive manufacturing |
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LIU Haihua, GAO Wenqiang, ZHAO Tao, HAN Liang, ZHANG Wenhao
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(Tianjin Key Laboratory of Modern Mechatronics Equipment Technology(Tiangong University), Tianjin 300387, China)
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| Abstract: |
| Wire and arc additive manufacturing (WAAM) is particularly suitable for the rapid prototyping of large-size metal components with complex geometric features, and a reasonable path planning method can greatly improve the geometric reduction degree and surface quality of the components. This paper analyzes the advantages and disadvantages of common path planning methods, proposes a compound path planning method that combines contour offset path and zigzag path, and optimizes the offset distance of the contour offset path.Optimization results show that the contour offset path could improve the geometric reduction degree of the component, and the zigzag path could eliminate the pores in the geometric center of the contour offset path, thereby improving the forming quality. The experiments indicate that the compound path planning method has good feasibility and applicability for the path planning of most large-scale complex structural parts. |
| Key words: additive manufacturing compound path planning method geometric reduction degree surface quality contour offset path zigzag path |
