Mechanism Study of Shapings Influences on Accuracy of Roll Forming Products

doi:10.3969/j.issn.1004-132X.2024.10.016

Abstract

Abstract: In order to study the shapings influences on the accuracy of roll forming products, experiments and the finite element method were used to analyze different shaping schemes influences on the accuracy of products. The forming force, torque, stress and strain were analyzed in the roll forming processes of different shaping schemes, to reveal the shapings influences on the accuracy of roll forming products. The results show that the shaping may reduce the residual stress of the plates, and reduce the influences of the end flare effect on the accuracy of the formed parts. The influences on springback increase with the increase of the forming angle, which means the larger the angle is, the greater the influences of shaping.

Key words: roll forming, product accuracy, shaping, springback

摘要： 为研究整型工艺对辊弯成形产品精度的影响，采用试验与有限元的方法分析不同整型方案对产品精度的影响；对不同整型方案下辊弯成形过程中的成形力、扭矩、应力应变进行分析，揭示整型对辊弯成形产品精度的影响机理。研究结果表明，整型可以降低型材的残余应力；降低端头效应对成形件精度的影响；对回弹的影响随成形角度的增大而增大，角度越大，整型工艺对其影响越大。

关键词: 辊弯成形, 产品精度, 整型, 回弹

CLC Number:

TG306

XING Gang1, HAN Fei1, HUANG Hongjiang2. Mechanism Study of Shapings Influences on Accuracy of Roll Forming Products[J]. China Mechanical Engineering, 2024, 35(10): 1862-1870.

邢刚1, 韩飞1, 黄宏江2. 整型对辊弯成形产品精度的影响机理研究[J]. 中国机械工程, 2024, 35(10): 1862-1870.

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