0
TECHNICAL PAPERS

Sheet Thickness Optimization for Superplastic Forming of Engineering Structures

[+] Author and Article Information
A. Huang, M. J. Cardew-Hall, A. Lowe

Department of Engineering, Faculty of Engineering and Information Technology, Australian National University, Canberra 0200, Australia

J. Manuf. Sci. Eng 122(1), 117-123 (Sep 01, 1999) (7 pages) doi:10.1115/1.538892 History: Received June 01, 1998; Revised September 01, 1999
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Initial position of the sheet with respect to dome die
Grahic Jump Location
Formed dome thickness distribution, using 3.81-mm-thick sheet showing an uneven thickness profile
Grahic Jump Location
Criterion convergences of hemispherical dome model by gradient search method with lower values of λ
Grahic Jump Location
Criterion convergence of hemispherical dome model by gradient search method with higher values of λ
Grahic Jump Location
Final optimized sheet thickness profiles of hemispherical dome after 15 iterations using gradient search method, when λ=0.35, 0.40, 0.45, and 0.50
Grahic Jump Location
The formed dome thickness profiles using the optimized sheet thickness profiles in Fig. 5
Grahic Jump Location
Dome thickness distribution using the optimized sheet thickness profile after 15 gradient search iterations (λ=0.45)
Grahic Jump Location
Criterion convergences of hemispherical dome model by proportional control method with lower values of p
Grahic Jump Location
Criterion convergences of hemispherical dome model by proportional control method with higher values of p
Grahic Jump Location
Final optimized sheet thickness profiles of hemispherical dome after 15 iterations using proportional control method, when p=0.6–1.1
Grahic Jump Location
Formed dome thickness profile using the optimized sheet thickness profile in Fig. 10
Grahic Jump Location
Dome thickness distribution using the optimized sheet thickness profile from 15 proportional control iterations (p=0.9)
Grahic Jump Location
3-D box thickness distribution, using a 3.175-mm-thick sheet with the proportional control method after 15 iterations (p varies between 0.6 and 1.1)
Grahic Jump Location
Criterion convergences of a 3-D box model using the proportional control method
Grahic Jump Location
3-D box thickness distribution using the optimized thickness profile obtained after 15 proportional control iterations (p=0.8)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In