Rolling-Plowing-Extrusion of Outside 3D Integral Fins on the Stainless Steel Tube

Abstract:

A new method of rolling-plowing-extrusion is proposed for fabricating outside 3D integral fins on the stainless steel tube. The fabricated process of fins is divided into two stages, rolling and plowing-extrusion, at first ribs are obtained on the stainless steel tube by the rolling process, and then 3D integral fins are obtained by the plowing-extrusion process. In this study, the principle of the rolling-plowing-extrusion is briefed; rolling process and plowing-extrusion process are analyzed, respectively. Through the experiments, the effect of technical parameters on fins forming and structures is investigated; experimental results are shown that accurate matching technical parameters and plowing tool angles is the key to the fins forming and structures; further analytical results indicate that when rolling speed and plowing speed is 50r/min, rolling feed rate is 0.16 mm/r, rolling depth is approximately 0.80-1.00mm, plowing feed rate is above 2.16mm/r, plowing depth is approximately 0.25-0.45mm, the optimal fins are obtained

• Periodical: Advanced Materials Research (Volumes 139-141)
• Pages: 1392-1395
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.139-141.1392
• Online since: October 2010
• Authors: Xiao Xia Zhang, Yong Tang, Zhen Ping Wan, Su Lian Tao
• Keywords: Rolling , 304 Stainless Steel Tube, Outside 3D Integral Fin, Plowing-Extrusion

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