This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Extruded Aluminum Bumper System
Annotation ability available
Sector:
Language:
English
Abstract
An innovative, lightweight bumper system has been designed and developed in conjunction with an OEM, Alcoa, and Miles Inc. The bumper system uses extruded aluminum (6061-T6) for the reinforcement beam and mounting brackets, and resilient polyurethane foam (Bayfill EA-70) for the energy absorbing material.
There are two key advantages of this lightweight system. The first is that the extruded aluminum beam can be highly swept to meet the demanding styling requirements, and the second is that the polyurethane foam is directly molded to the aluminum beam for part consolidation and assembly cost reduction. By integrating extruded aluminum and polyurethane foam, this system provides tighter dimensional tolerances not common in most bumper systems today. In addition, the extruded system provides low mass due to variable wall thicknesses and a major reduction in tooling costs over other manufacturing methods.
Recommended Content
Technical Paper | MOTOR-CAR BUMPERS |
Technical Paper | Weight Reduction of Automobile Bumper Systems |
Topic
Citation
Allen, P., McCullough, D., and Tan, S., "Extruded Aluminum Bumper System," SAE Technical Paper 940159, 1994, https://doi.org/10.4271/940159.Also In
References
- Recyclability and Design 1992 Automotive Design and Fabrication Seminar Detroit, MI November 4 1992
- A Guide to Federal Motor Vehicle Safety Standards and Regulations
- Kath, H. Avar, G. Thompson-Colon, J.A. “Energy Absorbing Polyurethane Foams for Modular Bumper Concepts” Proceedings of the SPI 32nd Annual Technical/Marketing Conference 587
- Weigand, E. “Recycling and Reuse of Polyurethanes” Bayer A.G. Germany, and Miles Inc. 1993
- Design for Aluminum Recycling Automotive Engineering October 1993 65