DOI number:10.1007/s00170-017-0255-8

Journal:The International Journal of Advanced Manufacturing Technology

Place of Publication:美国

Key Words:Analytical thermal model . Dual laser welding of nanobainite . Linear heat source . Temperature cycle validation . Static recrystallization kinetics

Abstract:The explicit temperature function of dual laser welding was presented, and the effect of welding pass distance and heat source distance on the thermal history was analyzed. There was excellent correlation between analytically solved and finite element method (FEM)-predicted dual laser welding temperature field. The analytical temperature function is applied to study the static recrystallization kinetics upon dual laser welding of nanobainite steel. By calculation, the optimal welding process parameters can be obtained when the static recrystallization fraction takes the maximum value. The corresponding temperature is above the martensite transus temperature and is appropriate to produce sufficient plastic strain in the austenite grains.

Co-author:Zhihong Zhong,Kun Fang,Jianguo Yang

First Author:Kuijing Song

Indexed by:Journal paper

Discipline:Engineering

Document Type:J

Issue:92

Page Number:1629–1641

Translation or Not:no

Date of Publication:2017-03-16

Included Journals:SCI