论文信息 - Collar drawing using a urethane pad

Collar drawing using a urethane pad

Abstract Collars were drawn from annular aluminum blanks of 1 mm thickness using an annular urethane pad and a die by applying Maslennikov’s technique, developed originally for drawing very deep cups. Tests were conducted to determine the effectiveness of this new technique of collar drawing. The inner diameters of the blank were varied to determine the optimum conditions for the process. Inspection after each loading cycle in interrupted tests shows the progressive deformation of the collar. Thickness variations were also measured. Results from these preliminary experiments are presented.

S. Thiruvarudchelvan | Ming Jen Tan

[1] N. R. Chitkara,et al. Deformation Modes and Lip Fracture During Hole Flanging of Circular Plates of Anisotropic Materials , 1977 .

[2] S. Thiruvarudchelvan. Direct redrawing of cups using an annular urethane pad , 2002 .

[3] You-Min Huang,et al. The formability limitation of the hole-flanging process , 2001 .

[4] K. Yamaguchi,et al. Attempts to facilitate low volume production of soft aluminium cups with large drawing ratios by deep drawing based on Maslennikov's technique , 1979 .

[5] Katsuhiko Yamaguchi,et al. Deep Drawing of Circular Sheet Metals with Rubber Rings : 3rd Report, On the Drawing Mechanism , 1974 .

[6] K. Yamaguchi,et al. Deep Drawing of Circular Sheet Metals with Rubber Rings : 2nd Report, The Case of Repeated Drawing Operations , 1971 .

[7] Daw-Kwei Leu,et al. Finite-element simulation of hole-flanging process of circular sheets of anisotropic materials , 1996 .

[8] Mohsen A. Hassan,et al. Friction aided deep drawing of sheet metals using polyurethane ring and auxiliary metal punch. Part 1: experimental observations on the deep drawing of aluminium thin sheets and foils , 2002 .

[9] S. Thiruvarudchelvan,et al. The redrawing of cups at a redraw ratio of 3 using an annular urethane pad , 1999 .

[10] You-Min Huang,et al. Influence of punch shapes on the collar-drawing process of sheet steel , 1999 .