NEW SHEET MATERIALS FOR AUTOMOTIVE PANELS AND THEIR FORMABILITY

Abstract

In the last few decades the automobile industry has passed through an intensive development, integrating the latest conceptions from different areas of science and technology. The development and usage of new materials for autobodies bodies, is being coordinated with general social demands, regarding economic resources, energy saving, ecology, driving safety etc. In this paper problems of application of high strength steel sheets and aluminium alloys sheets in car manufacturing industry are considered, sheets categories are enumerated, restrictions (especially deflection problems) analyzed, and tests for formability evaluation are presented. For a particular type of these sheets experimental results are presented, which contain standard and special parameters of formability, forming limit indicators, etc.