Ali Muhammad Hassaan, Han You Sung
Department of Mechatronics Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea.
Materials (Basel). 2023 Jun 29;16(13):4698. doi: 10.3390/ma16134698.
Wire arc additive manufacturing (WAAM) is a metal additive manufacturing (AM) technique that has a high throughput and has seen a potential interest for replacing currently available subtractive manufacturing techniques. Contrary to other metal AM machines, WAAM rigs can be built using existing welding plants and using welding wire as feedstock, thus, making it a cheap and viable manufacturing technique for a number of industries, such as the maritime industry. However, the effects of AM parameters, such as the scanning pattern and energy, on the residual stress and deformation, are still not completely understood. In this work, a finite element (FE) study has been conducted to understand the influence of different scanning patterns (alternate, in-out, raster and zigzag) and energies on residual stress and warpage. Analyses show that the in-out scanning pattern leads to the highest residual stress, while the zigzag pattern results in the lowest residual stress for all scanning energies considered in this study. Findings in the present study also show that the scanning pattern affects the residual stress and deformation more than does the scanning energy.
电弧增材制造（WAAM）是一种金属增材制造（AM）技术，具有高生产率，并且在取代现有减材制造技术方面展现出了潜在的吸引力。与其他金属增材制造机器不同，WAAM设备可以利用现有的焊接设备并使用焊丝作为原材料来构建，因此，对于许多行业，如海事行业而言，它是一种廉价且可行的制造技术。然而，诸如扫描模式和能量等增材制造参数对残余应力和变形的影响仍未被完全理解。在这项工作中，进行了一项有限元（FE）研究，以了解不同扫描模式（交替、进出、光栅和之字形）和能量对残余应力和翘曲的影响。分析表明，对于本研究中考虑的所有扫描能量，进出扫描模式会导致最高的残余应力，而之字形模式产生的残余应力最低。本研究的结果还表明，扫描模式对残余应力和变形的影响比对扫描能量的影响更大。
