Prediction of dimensional difference of product from tool in cold backward extrusion

T. Ishikawa; N. Yukawa; Y. Yoshida; H. Kim; Y. Tozawa

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Prediction of dimensional difference of product from tool in cold backward extrusion

机译：冷后向挤压中工具与产品尺寸差异的预测

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The effects of forming stresses and generated heat on the dimensional change of punch, die and work piece during forging are discussed analytically. The change in outer and inner diameter of backward extruded cup is investigated numerically using thermo-elastic-plastic FEM code according to the actual forging sequence, namely extruding, unloading of punch force, and ejection and air cooling of extruded cup. The calculated results of outer and inner diameters of product are in good agreement with the experimental results. The simulation can be used to determine the initial tool dimensions for precision parts in the tool design process of cold forging.

机译：分析地讨论了锻造过程中形成应力和产生的热量对冲头，模具和工件尺寸变化的影响。根据实际的锻造顺序，即挤压，冲模力的卸载，挤压杯的顶出和空冷，采用热弹塑性有限元代码对倒挤杯的外径和内径的变化进行了数值研究。产品外径和内径的计算结果与实验结果吻合良好。该模拟可用于确定冷锻工具设计过程中精密零件的初始工具尺寸。

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《CIRP Annals》 |2000年第1期|共4页
作者
T. Ishikawa; N. Yukawa; Y. Yoshida; H. Kim; Y. Tozawa;
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原文格式 PDF
正文语种 eng
中图分类一般性问题;
关键词
Cold forging; Dimensional accuracy; FEM;

机译：冷锻;尺寸精度;有限元;

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专利

1. Prediction of dimensional difference of product from tool in cold backward extrusion [J] . T. Ishikawa, N. Yukawa, Y. Yoshida, CIRP Annals . 2000,第1期

机译：冷后向挤压中工具与产品尺寸差异的预测
2. The Influence of Extrusion Ratio on Contact Stresses and Die Elastic Deformations in the Case of Cold Backward Extrusion [J] . Pepelnjak Tomaz, Milutinovic Mladomir, Plancak Miroslav, Journal of Mechanical Engineering . 2016,第1期

机译：冷后向挤压时挤压比对接触应力和模具弹性变形的影响
3. Experimental and numerical prediction of extrusion load at different lubricating conditions of aluminium 6063 alloy in backward cup extrusion [J] . Oyinbo S., Ikumapayi O., Jen T., Engineering Solid Mechanics . 2020,第2期

机译：铝挤压铝合金6063合金不同润滑条件下挤压载荷的实验和数值预测
4. DIMENSIONAL ERROR PREDICTION OF COLD FORMED COMPONENTS IN BACKWARD EXTRUSION USING FINITE ELEMENT ANALYSIS [C] . H. Long, P. G. Maropoulos Applied Simulation and Modelling . 2004

机译：基于有限元分析的向后挤压中冷成型零件的尺寸误差预测
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7. Performance Evaluation of Lubricant for Producing Smooth Surface Product in Cold Extrusion of Aluminum Using Tool with Micro-groove Arrays [O] . Kamitani Shunpei, Nakanishi Kenji, Guo Yong-Ming 2014

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Prediction of dimensional difference of product from tool in cold backward extrusion

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