Experimental and numerical investigations have been carried out on the influence of back-tension on residual stress levels after cold bar drawing. In particular, the influence on the skin pass effect was studied. Experimental and numerical results show that back-tension has little influence on the reduction of residual stress obtained following skin pass drawing. It is concluded that a skin pass can be incorporated into the final stage of drawing regardless of the draft schedule of the overall drawing process.
References
1.
AsakawaM.KondouK.OgataS.MisakaY.MatsuiT.: J. JSTP, 1979, 20, (224), 841–849(in Japanese).
