Verification of possibility for controlling welding distortion generated by laser-arc hybrid welding

Autor:	You-Chul Kim, Mikihito Hirohata, Koutarou Inose
Rok vydání:	2014
Předmět:	Heat-affected zone Materials science business.industry Acoustics Metallurgy Welding Structural engineering Laser Electric resistance welding Finite element method law.invention Arc (geometry) law Residual stress Distortion business Civil and Structural Engineering
Zdroj:	International Journal of Steel Structures. 14:323-329
ISSN:	2093-6311 1598-2351
DOI:	10.1007/s13296-014-2012-2
Popis:	For predicting welding distortion and residual stress generated by laser-arc hybrid welding (HYBW) with high accuracy by the 3D thermal elastic-plastic analysis based on FEM, a heat input model considering the dual heat source of HYBW was proposed. By using the proposed model, welding distortion and residual stress generated by HYBW on the general structural steel under several welding conditions, in which the heat input ratio of laser and arc were variously changed, were obtained. Comparing with the results obtained by experiments and analyses, the validity and generality of the proposed heat input model could be verified. The tendency and magnitude of welding distortion varied with the heat input ratio of laser and arc. The results indicated the possibility for controlling welding distortion generated by HYBW with the optimum heat input ratio of laser and arc.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f334d6dbb62f47478dd4f6e3236e4794 https://doi.org/10.1007/s13296-014-2012-2 Zobrazit plný text záznamu Full text from SpringerLink