电液颤振对6061铝合金反挤压成形过程的影响（英文）

发布时间：2018-01-18 13:25

本文关键词：电液颤振对6061铝合金反挤压成形过程的影响（英文）　出处：《Transactions of Nonferrous Metals Society of China》2015年09期 　论文类型：期刊论文

【摘要】：研究电液颤振技术在冷挤压成形中应用的可行性。在室温下对6061铝合金坯料进行传统反挤压和电液颤振辅助反挤压。实验结果表明,给凹模施加频率为100 Hz、幅值为0.013 mm的颤振,可使最大挤压力下降5.65%。采用有限元软件Deform模拟反挤压过程,结果表明,在反挤压过程中,颤振可使坯料与模具之间的摩擦因数从0.2下降为0.1,改变材料流动的方向及提高材料流动的瞬时速度,同时使坯料承受较小的最大塑性应变,其应变分布较传统反挤压更均匀。
[Abstract]:Study of electro-hydraulic flutter in the cold extrusion forming feasibility application. At room temperature for 6061 Aluminum Alloy billet extrusion and traditional electro-hydraulic flutter assisted extrusion. The experimental results show that the die is applied to a frequency of 100 Hz, 0.013 mm for flutter amplitude, the maximum pressure drop of 5.65%. finite element software Deform to simulate the process of backward extrusion. The results showed that in the backward extrusion process, flutter can make the friction coefficient between billet and die decreased from 0.2 to 0.1, changing the material flow direction and improve the instantaneous speed of material flow, while the blank for the maximum plastic strain is smaller, the strain distribution compared with the traditional anti extrusion more uniform.

【作者单位】：浙江工业大学特种装备制造与先进加工技术教育部/浙江省重点实验室;金华职业技术学院机电工程学院;
【基金】：Project(51275475)supported by the National Natural Science Foundation of China Project(2014BY001)supported by the Department of Education in Zhejiang Province,China Project(2014EP0110)supported by the Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology,Ministry of Education and Zhejiang Province,China
【分类号】：TG379
【正文快照】： 1 IntroductionVibration assisted metal forming is one of the mostrecent and beneficial process improvements in whichvibration is applied on the billet or the die to improveforming process because of the lower forming load,better surface qualities and hig

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