Effect of young's modulus on springback for low, medium and high carbon steels during cold drawing of seamless tubes

International Conference on Recent Advances in Materials & Manufacturing Technologies

Karanjule, D.B.^1 ; Bhamare, S.S.^2 ; Rao, T.H.^3

Sinhgad College of Engineering, Vadgaon, M.S., Pune

411041, India^1

Dr. Babasaheb Ambedkar Technological University, Lonere, M.S.

402103, India^2

Research and Development Department, Indian Seamless Metal Tubes Limited, M.S., Ahmednagar

414003, India^3

关键词: Cold drawing;    High carbon steels;    Medium-carbon steels;    Spring-back;    Youngs modulus;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/346/1/012043/pdf
DOI  :  10.1088/1757-899X/346/1/012043

来源: IOP

【 摘 要 】

Cold drawing is widely used deformation process for seamless tube manufacturing. Springback is one of the major problem faced in tube drawing. Springback is due to the elastic energy stored in the tubes during forming process. It is found that this springback depends upon Young's modulus of the material. This paper reports mechanical testing of three grades of steels viz. low carbon steel, medium carbon steel and high carbon steel to measure their Young's modulus and corresponding springback. The results shows that there is 10-20 % variation in the Young's modulus and inverse proportion between the springback and Young's modulus. More the percentage of carbon, more the strength, less the value of Young's modulus and more will springback. The study further leads to identify optimum die semi angle of 15 degree, land width of 10 mm and drawing speed of 8, 6 and 4 m/min for least springback in all the three grades respectively and die semi angle as a most dominant factor causing springback.