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Experimental investigation of tailored hot stamping parts

chapter
posted on 2016-05-01, 00:00 authored by Amir Abdollahpoor, Michael PereiraMichael Pereira, Bernard RolfeBernard Rolfe, Z J Wang, Y S Zhang
It is known that tailored hot stamped parts, which have locally graded properties, can improve car crashworthiness. In this experimental study, a heated tool was used to decrease the temperature difference between the hot blank and the tool which led to lower cooling rates and softer properties. First, a flat heated tool was used to investigate the effects of process parameters on metallurgical and mechanical properties. Based on the range of parameters examined, press force and quenching time did not have a significant effect on the post-formed mechanical properties. In the next step, a hatshaped channel tool with heating system was used to produce tailored hot stamping parts. The results show considerable differences between hardness values of the top and side faces in the soft section, while the hardness was almost uniform in the hard section. These experimental results generally compare well with the results of previous numerical parametric studies performed by the authors, which identified less robustness of the tailored hot stamping process compared to conventional hot stamping.

History

Title of book

Advanced high strength steel and press hardening: proceedings of the 2nd international conference (ICHSU2015)

Chapter number

4

Pagination

443 - 448

Publisher

World Scientific Publishing

Location

Changsha, China

Place of publication

London, Eng.

Start date

2015-10-15

End date

2015-10-18

ISBN-13

9789813140615

Language

eng

Notes

This chapter is part of the 2nd International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2015) - Changsha, China, 15 – 18 Oct. 2015

Publication classification

B Book chapter; B1 Book chapter

Copyright notice

2016, World Scientific Publishing

Extent

7

Editor/Contributor(s)

Y Zhang, M Ma

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