AN APPROACH TO NON-UNIFORM CIRCUMFERENTIAL FORMATION OF COLD-DRAWN ROUND TUBES

Zhou Yimiao. AN APPROACH TO NON-UNIFORM CIRCUMFERENTIAL FORMATION OF COLD-DRAWN ROUND TUBES[J]. STEEL PIPE, 1990, 19(6): 41-43,59.

Citation:

Zhou Yimiao. AN APPROACH TO NON-UNIFORM CIRCUMFERENTIAL FORMATION OF COLD-DRAWN ROUND TUBES[J]. STEEL PIPE, 1990, 19(6): 41-43,59.

Citation:

Zhou Yimiao. AN APPROACH TO NON-UNIFORM CIRCUMFERENTIAL FORMATION OF COLD-DRAWN ROUND TUBES[J]. STEEL PIPE, 1990, 19(6): 41-43,59.

Abstract

A new spstem of process parameters for round tube cold-drawn,with OD reduction coefficient KD and wall-thickness reduction coefficient Ks taken as key data,is recommended and the non-uniform circumferential formation is analysed using the efficients K_D and K_s and the relationship between the cold-drawing process and the residual stress б_θ on tubes being non-uniformly formed is obtained.

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