This article reviews the research progress of hot forming process in the field of automotive lightweight.The hot forming process involves heating high-strength steel plates to an austenitized state,rapidly stamping them,and then rapidly cooling them to form a high-strength martensitic structure,effectively improving the strength of the parts and reducing material usage.The study ex-plores the mechanical properties,process characteristics,mold design,production efficiency,and post forming rebound issues of hot formed steel grades.The plastic flow behavior and the causes and control methods of abnormal grain growth(AGG)phenomenon in aluminium alloy during hot forming were discussed.By precisely controlling the chemical composition and optimizing the heat form-ing process,the safety performance and lightweight level of automobiles have been significantly improved.With the continuous ad-vancement of technology,hot forming technology has shown great potential in the applicotion of aluminium auoy materals and is ex-pected to make greater contributions to the sustainable development of the automotive industry.
万方数据
维普
