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Field Study of Volvo Trucks With Aluminum Panels Joined to Steel With Transition Materials
Published September 26, 1994 by Automotive Technology Group, Inc. in United States
Use of aluminum clad steel transition material as an insert for resistance spot welding of aluminum to steel has been described in the technical literature. This technique has been used to manufacture twelve Volvo truck cabs with aluminum side panels, rear wall, roof and crown panels. One of these cabs was tested for corrosion durability and shake/vibration endurance in proving grounds tests. Another car was tested in outdoor atmospheric exposure in Sweden. Based on those results, ten additional truck cabs were built and have been driven in the USA since 1988. Inspections of the truck cabs have been conducted after 1,5, 2,5, and 5 years service. One was returned to Volvo Truck in Gothenburg, Sweden for disassembly and analysis. This paper describes the results of these tests, the inspections, and the analysis and evaluation.