316L不锈钢SLM件与锻件的激光焊接头微观组织与性能

丁宏德; 朱春明; 唐斌; 顾小燕

doi:10.12073/j.hj.20201117002

316L不锈钢SLM件与锻件的激光焊接头微观组织与性能

丁宏德^1,2,
朱春明³,
唐斌^1,2,
顾小燕^1,2,

1. 江苏科技大学, 江苏镇江 212003;
2. 江苏科技大学国家级实验教学示范中心, 江苏镇江 212003;
3. 重庆长安工业集团有限责任公司, 重庆 401120

基金项目:

国家自然科学基金资助项目(51705218)

详细信息

作者简介:
丁宏德,1996年出生,硕士研究生;主要从事增材制造、激光焊接方面的工作

通讯作者:
顾小燕,1983年出生,博士,副教授

中图分类号: TG456.7
计量
- 文章访问数: 38
- HTML全文浏览量: 0
- PDF下载量: 16
出版历程
- 收稿日期: 2020-11-16

Microstructure and properties of laser welded joint between 316L stainless steel SLMed and forged parts

1. Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China;
2. National Experimental Teaching Demonstration Center, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China;
3. Chongqing Changan Industry (Group) Limited Liability Company, Chongqing 401120, China

摘要

摘要: 文中采用激光焊接技术连接316L不锈钢SLM成形件与锻件，进行工艺优化并对其接头微观组织与性能进行研究。结果表明，该接头具有良好的激光焊接性能，无明显缺陷。激光焊接接头和SLM成形件的显微组织为柱状晶粒内的奥氏体基体中的胞状枝晶。与SLM成形件相比，接头表现出较粗的枝晶结构、较低的显微硬度、拉伸性能。该接头的力学性能满足实际应用的要求。各向异性对激光焊接接头的组织和力学性能的影响可以忽略不计。平行于打印方向的SLM成形件与锻件焊接得到的接头，可以得到较细的树枝状结构和较高的拉伸性能。
- 选择性激光熔化成形 /
- 激光焊 /
- 316L不锈钢 /
- 各向异性 /
- 力学性能
Abstract: In this paper,laser welding technology was used to connect 316 L stainless steel SLMed and forged parts. The process optimization was carried out and the microstructure and properties of the joint were studied. The results showed that the joints appeared good laser weldability without obvious defects. Microstructures of the SLMed parts and laser-welded joints consisted of the cellular dendrite in austenite matrix within the columnar grains. Compared with the SLMed parts,the joints exhibited a coarser dendrite microstructure,lower microhardness,tensile properties. Mechanical properties of the joints met the practical application requirements. The anisotropy of SLMed acted a negligible role in determining the microstructure and mechanical properties in the laser-welded joints. The joint obtained by welding SLMed parts parallel to the building direction to forged parts could obtain finer dendrite microstructure and higher tensile properties.
- selective laser melting /
- laser welding /
- 316L stainless steel /
- anisotropy /
- mechanical properties

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参考文献(15)

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施引文献(5)

期刊类型引用(3)

1.	贺润龙，杜欣，周欣宇，武强，肖荣诗. SLMed GH3536/SLMed 304光纤激光焊接接头组织及性能研究. 中国激光. 2024(24): 70-80 . 百度学术
2.	史俊丰，田斌，黄志刚，黎繁，冉志勇. 轧制和3D打印316L不锈钢与黄豆对磨的干摩擦磨损性能. 机械设计. 2023(02): 71-76 . 百度学术
3.	葛亚琼，李济鹏，畅泽欣，马明锋，侯庆玲. SLM成形中粉末铺展行为的动态数值模拟. 焊接学报. 2023(01): 93-98+134 . 百度学术