Publication Details

Zhang, Y. & Ding, S. (2012). Experimental study on chain-die forming for ultrahigh strength steel (UHSS). 15th International Conference on Advances in Materials & Processing Technologies (pp. 1-6).


With the increasing applications of UHSS for the automotive industry, it becomes more and more important to develop a new forming technology as an alternative or even a replacement to roll forming to overcome the difficulties and problems of manufacturing the UHSS. With the increase of material's strength and decrease of its thickness, the springback of the material becomes more difficult to predict, which directly affects the application of roll forming in UHSS. Chain-die Forming, as an alternative to roll forming proposed and developed recently in Australia, is expected to be a solution to the problems addressed. It has been proved that Chain-die Forming has the advantages of low redundant strain components during forming and nearly zero residual stresses in products. In this paper, a special case of forming a UHSS U-channel with pre-made holes is studied in order to explore the limitations of Chain-die Forming and exhibit the advantages of the new method over roll forming. FEA is employed to simulate the forming process, and the results are compared with the experimental results.