發(fā)布時(shí)間：2018-01-18 13:25

  本文關(guān)鍵詞：電液顫振對(duì)6061鋁合金反擠壓成形過程的影響（英文）　出處：《Transactions of Nonferrous Metals Society of China》2015年09期 　論文類型：期刊論文

  更多相關(guān)文章： 鋁合金 傳統(tǒng)反擠壓 電液顫振輔助反擠壓 有限元分析 材料流動(dòng) 應(yīng)變分布

【摘要】：研究電液顫振技術(shù)在冷擠壓成形中應(yīng)用的可行性。在室溫下對(duì)6061鋁合金坯料進(jìn)行傳統(tǒng)反擠壓和電液顫振輔助反擠壓。實(shí)驗(yàn)結(jié)果表明,給凹模施加頻率為100 Hz、幅值為0.013 mm的顫振,可使最大擠壓力下降5.65%。采用有限元軟件Deform模擬反擠壓過程,結(jié)果表明,在反擠壓過程中,顫振可使坯料與模具之間的摩擦因數(shù)從0.2下降為0.1,改變材料流動(dòng)的方向及提高材料流動(dòng)的瞬時(shí)速度,同時(shí)使坯料承受較小的最大塑性應(yīng)變,其應(yīng)變分布較傳統(tǒng)反擠壓更均勻。
[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.

【作者單位】： 浙江工業(yè)大學(xué)特種裝備制造與先進(jìn)加工技術(shù)教育部/浙江省重點(diǎn)實(shí)驗(yàn)室;金華職業(yè)技術(shù)學(xué)院機(jī)電工程學(xué)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
【分類號(hào)】：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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本文編號(hào)：1441150