Resistance Heating Characteristics of High-Strength Steel Sheet Blank for Hot Press Forming

Abstract:

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Resistance heating performance in some shaped blanks of high-strength steel sheet is examined by experiment and FE simulation, and the feasibility and effectiveness of the application of resistance heating to the hot press forming of high-strength steel sheet are discussed. The followings are made clear through this study. (1) A uniformly distributed current density is essential to uniform blank heating. (2) For a certain shaped blank, no matter how the electrodes are disposed, uniform blank heating is difficult. (3) A blank shape suitable for uniform heating by a single pair of parallel electrodes is restricted to a rectangle.(4) In case a uniformly heated blank is required, two-piece simultaneous forming with point-symmetric die layout is recommended from the viewpoint of material utilization.

Info:

Periodical:

Key Engineering Materials (Volumes 340-341)

Edited by:

N. Ohno and T. Uehara

Pages:

749-754

DOI:

10.4028/www.scientific.net/KEM.340-341.749

Citation:

S. Maki et al., "Resistance Heating Characteristics of High-Strength Steel Sheet Blank for Hot Press Forming", Key Engineering Materials, Vols. 340-341, pp. 749-754, 2007

Online since:

June 2007

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Price:

$35.00

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