Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Blanking immediately after heating and ultrasonic cleaning for compact hot-stamping systems using rapid resistance heating

Blanking immediately after heating and ultrasonic cleaning for compact hot-stamping systems using... To produce ultra-high-strength steel parts for improving fuel consumption and collision safety of automobiles, a compact hot-stamping process having resistance heating was developed. In this process, a blanking operation was introduced immediately after heating to deal with non-rectangular blanks in resistance heating. By blanking, not only were the blank shapes optimised for stamping but the formability was also improved by removing both non-heating edges in contact with the electrode. A rectangular quenchable steel sheet was resistance-heated; the sheet was immediately blanked into the desired shape, and the blank was hot-stamped. In addition, reinforcements used for a body-in-white were hot-stamped using the proposed process to examine the applicability. The reduction in thickness of the hot-stamped reinforcement using a hot-blanked sheet was reduced compared with that using a rectangular blank. The formability was improved by blanking immediately after heating. Moreover, ultrasonic cleaning with diluted hydrochloric acid removed the thin oxide scale caused by resistance heating, and the spot-resistance weldability and electrodeposition paintability were improved. Blanking immediately after heating and ultrasonic cleaning are useful for practical hot-stamping processes using resistance heating. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Blanking immediately after heating and ultrasonic cleaning for compact hot-stamping systems using rapid resistance heating

Download PDF
11 pages

Loading next page...
 
/lp/springer_journal/blanking-immediately-after-heating-and-ultrasonic-cleaning-for-compact-lcsZgVZOAz
Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag London Ltd., part of Springer Nature
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
DOI
10.1007/s00170-018-2232-2
Publisher site
See Article on Publisher Site

Abstract

To produce ultra-high-strength steel parts for improving fuel consumption and collision safety of automobiles, a compact hot-stamping process having resistance heating was developed. In this process, a blanking operation was introduced immediately after heating to deal with non-rectangular blanks in resistance heating. By blanking, not only were the blank shapes optimised for stamping but the formability was also improved by removing both non-heating edges in contact with the electrode. A rectangular quenchable steel sheet was resistance-heated; the sheet was immediately blanked into the desired shape, and the blank was hot-stamped. In addition, reinforcements used for a body-in-white were hot-stamped using the proposed process to examine the applicability. The reduction in thickness of the hot-stamped reinforcement using a hot-blanked sheet was reduced compared with that using a rectangular blank. The formability was improved by blanking immediately after heating. Moreover, ultrasonic cleaning with diluted hydrochloric acid removed the thin oxide scale caused by resistance heating, and the spot-resistance weldability and electrodeposition paintability were improved. Blanking immediately after heating and ultrasonic cleaning are useful for practical hot-stamping processes using resistance heating.

Journal

The International Journal of Advanced Manufacturing Technology – Springer Journals

Published: Jun 1, 2018

References

  • Inferring the specific heat of an ultra high strength steel during the heating stage of hot forming die quenching, through inverse analysis
    Jhajj, KS; Slezak, SR; Daun, KJ
  • A local heating method by near-infrared rays for forming of non-quenchable advanced high-strength steels
    Lee, EH; Hwang, JS; Lee, CW; Yang, DY; Yang, WH
  • Investigation on induction heating for hot stamping of boron alloyed steels
    Kolleck, R; Veit, R; Merklein, M; Lechler, J; Geiger, M
  • Warm and hot stamping of ultra high tensile strength steel sheets using resistance heating
    Mori, K; Maki, S; Tanaka, Y
  • Mechanical and microstructural evaluations of hot formed titanium sheets by electrical resistance heating process
    Ozturk, F; Ece, RE; Polat, N; Koksal, A; Evis, Z; Polat, A
  • Conduction heating of boron alloyed steel in application for hot stamping
    Liang, WK; Liu, Y; Zhu, B; Zhou, ML; Zhang, YS
  • Spline forming of ultra-high strength gear drum using resistance heating of side wall of cup
    Mori, K; Maeno, T; Fukui, Y
  • Gas forming of ultra-high strength steel hollow part using air filled into sealed tube and resistance heating
    Maeno, T; Mori, K; Adachi, K
  • Investigation of the high strength steel Al-Si coating during hot stamping operations
    Borsetto, F; Ghiotti, A; Bruschi, S
  • Deep drawability and bendability in hot stamping of ultra-high strength steel parts
    Mori, K; Maeno, T; Yanagita, Y