Process Planning and Metallurgical Issues for Laser Assisted Spin Forming of Dual Phase Automotive Steel
نویسندگان
چکیده
Laser assisted spin forming is used to process a galvanized Dual Phase steel with minimum damage to coating, microstructure and material properties. Effective increase in formability was achieved, but no evidence of recrystalization, neither drop in forming force was detected. The paper discusses the possible mechanism of formability improvement through the analysis by EBDS of laser assisted formed samples and their relation with strain hardening behavior and local plasticity, together with the local thermal history of the part under laser radiation.
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