Hydroforming design and process advisor

Technical Report · Thu Oct 10 04:00:00 EDT 1996

DOI:https://doi.org/10.2172/663227· OSTI ID:663227

Greer, J T ^[1]; Ni, C M ^[2]

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1. Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States)
2. General Motors Corp., Warren, MI (United States). GM Technical Center

The hydroforming process involves hydraulically forming components by conforming them to the inner contours of a die. These contours can be complex and can often cause the material being formed to be stressed to rupture. Considerable process knowledge and materials modeling expertise is required to design hydroform dies and hydroformed parts that are readily formed without being overly stressed. For this CRADA, materials properties for steel tubes subjected to hydraulic stresses were collected; algorithms were developed which combined the materials properties data with process knowledge; and a user friendly graphical interface was utilized to make the system usable by a design engineer. A prototype hydroforming advisor was completed and delivered to GM. The technical objectives of the CRADA were met allowing for the development of an intelligent design systems, prediction of forming properties related to hydroforming, simulation and modeling of process execution, and design optimization. The design advisor allows a rapid and seamless approach to integration an otherwise enormous and onerous task of analysis and evaluation.

• Research Organization: Oak Ridge Y-12 Plant, TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 663227
• Report Number(s): Y/AMT--485; ON: DE98054350; CRN: C/Y-1292-0102
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
COMPUTER GRAPHICS
COMPUTER-AIDED DESIGN
DIES
EXPERT SYSTEMS
HYDRAULICS
MAN-MACHINE SYSTEMS
MATERIALS WORKING
STEELS