HIGH STRENGTH STEEL FOR AUTOMOTIVE PANELS AND THEIR FORMABILITY

Abstract

The quick development of car industry in the last few decades is followed by intensive development of materials of which autobodies are made. The development and usage of new materials are 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 sheet in car manufacturing industry are considered, sheet categories are ennumerated, restrictions are analysed (especially deflection problems), 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.