管件厚度对旋锻成形质量的影响

The Influence of Pipe Thickness on the Qual-ity of Rotary Forging Forming

摘要: 薄壁铜管在缩径高频旋锻过程中，表面易出现凹陷、镦粗、裂纹等缺陷。这会导致铜管表面成形质量下降。本文利用有限元仿真对铜管坯件在刚性匀速送料下进行研究。基于弹性送料研究，通过弹性送料仿真试验进行对比分析。研究结果表明：弹性送料能提高铜管坯料在不同条件下旋锻加工出的铜管成品效果，特别是有效改善管件材料加工中的逆流现象，避免镦粗等缺陷出现，同时在合理的送料速度范围下可以提高管件的生产效率。

Abstract: During the high-frequency rotary forging process of thin-walled copper pipes, defects such as dents, upsets, and cracks are prone to appear on the surface. This will lead to a decrease in the surface forming quality of copper pipes. This article uses finite element simulation to study the copper tube blank under rigid and uniform feeding. Based on elastic feeding research, comparative analysis is conducted through elastic feeding simulation experiments. The research results indicate that elas-tic feeding can improve the effect of copper pipe products produced by rotary forging of copper pipe blanks under different conditions, especially effectively improving the reverse flow phenomenon in pipe material processing, avoiding defects such as upsetting, and improving the production effi-ciency of pipe parts within a reasonable feeding speed range.