Laser Welding Of Finned Tubes Made Of Austenitic Steels

Archives of Metallurgy and Materials

Ł. Kowal¹  H. Bijok¹  M. Stolecki²  J. Adamiec² 

[1] ENERGOINSTAL S.A, 188 D. ROZDZIENSKIEGO AV., 40-203 KATOWICE, POLAND;SILESIAN UNIVERSITY OF TECHNOLOGY, FACULTY OF MATERIALS ENGINEERING AND METALLURGY, 8 KRASINSKIEGO STR., 40-019 KATOWICE, POLAND

关键词: Keywords: laser welding;    finned tubes;    austenitic steels;    the power industry;   

DOI  :  10.1515/amm-2015-0309

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

This paper describes the technology of welding of finned tubes made of the X5CrNi1810 (1.4301) austenitic steel, developed at Energoinstal SA, allowing one to get high quality joints that meet the requirements of the classification societies (PN-EN 15614), and at the same time to significantly reduce the manufacturing costs. The authors described an automatic technological line equipped with a Trumph disc laser and a tube production technological process. To assess the quality of the joints, one performed metallographic examinations, hardness measurements and a technological attempt to rupture the fin. Analysis of the results proved that the laser-welded finned tubes were performed correctly and that the welded joints had shown no imperfections.

【 授权许可】

Unknown