Paper Title:

Adjusting Optimized Material Properties for Tailored Heat Treated Blanks

Periodical Key Engineering Materials (Volume 473)
Main Theme Sheet Metal 2011
Edited by J.R. Duflou, R. Clarke, M. Merklein, F. Micari, B. Shirvani and K. Kellens
Pages 420-427
DOI 10.4028/www.scientific.net/KEM.473.420
Citation Marion Merklein et al., 2011, Key Engineering Materials, 473, 420
Online since March, 2011
Authors Marion Merklein, Hung Nguyen
Keywords AA6181PX, Aluminum Alloy, Precipitation Hardening, Process Window, Short-Term Heat Treatment, Tailored Heat Treated Blank
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Abstract

Aluminum alloys have great potential for lightweight construction. In order to achieve an optimized properties distribution for the forming operation and to enhance the formability of aluminum alloys, so called Tailored Heat Treated Blanks (THTB) are developed. In this context, this paper is about the local precipitation hardening of sheet metals for the application of THTB. By using a specific, short-term heat treatment via conductive heating plates the thermal induced hardening of the fast hardenable alloy AA6181PX is quantified and qualified. Considering the processibility of the local precipitation hardening for THTB, a process window for the heat treatment parameters is presented allowing a precise setting of the mechanical material properties.