Pereira António B, Fernandes Fábio A O, Morais Alfredo B de, Quintão João
TEMA-Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
Department of Mechanical Engineering, RISCO Research Unit, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal.
Polymers (Basel). 2019 Aug 22;11(9):1381. doi: 10.3390/polym11091381.
Welding is a fundamental process in many industries. It is a fast-changing technology, continuously evolving, with recent developments in laser and robotic welding, virtual reality and machine learning. Focusing on laser welding, there is a significant interest in this technology, as well as an increasing demand for high-strength lightweight structures, replacing metals in some applications. This work presents an experimental study of the mechanical properties of three types of polyamide 6 joints welded by Nd:YAG laser. After welding, tensile tests were carried out in order to evaluate the influence of the joint type and weld passes on joint strength and weld stresses. The results showed that fairly high weld stresses could be achieved, indicating that good-quality welds were achieved.
焊接是许多行业中的一项基础工艺。它是一项快速发展的技术，不断演进，近期在激光和机器人焊接、虚拟现实以及机器学习方面都有新进展。聚焦于激光焊接，这项技术引发了极大关注，同时对于高强度轻质结构的需求也在增加，在某些应用中可替代金属。本文展示了对三种由钕钇铝石榴石激光焊接的聚酰胺6接头力学性能的实验研究。焊接后，进行了拉伸试验，以评估接头类型和焊接道次对接头强度和焊接应力的影响。结果表明，可以实现相当高的焊接应力，这表明获得了高质量的焊缝。
