本文選題：異形截面環(huán)件 + 軋制　； 參考：《鍛壓技術(shù)》2015年10期

【摘要】：異形截面環(huán)件截面形狀復(fù)雜,軋制時(shí)金屬流動(dòng)不均勻,易產(chǎn)生翹曲、魚尾等缺陷�；贔orge有限元模擬軟件對(duì)異形截面環(huán)件封閉軋制成形進(jìn)行研究,得出了異形截面環(huán)件軋制過程中翹曲、魚尾缺陷產(chǎn)生機(jī)理,分析了毛坯截面形狀對(duì)翹曲和魚尾缺陷的影響規(guī)律。以優(yōu)化毛坯截面形狀的方式,提出了控制這些缺陷的對(duì)策。研究結(jié)果表明,將毛坯內(nèi)孔直壁高度設(shè)計(jì)成與法蘭部分高度相等,頸部內(nèi)表面設(shè)計(jì)成錐面,可消除軋制產(chǎn)生的扭矩,使翹曲現(xiàn)象明顯減小,軋制得以順利進(jìn)行;將毛坯頸部外表面傾角設(shè)計(jì)為30°,魚尾缺陷最小,并實(shí)現(xiàn)環(huán)件飽滿成形。將模擬研究結(jié)果用于實(shí)際生產(chǎn),獲得了合格的產(chǎn)品。
[Abstract]:The shape of irregular section ring is complex, the metal flow is not uniform during rolling, and the defects such as warpage and fishtail are easy to be produced. Based on the Forge finite element simulation software, the paper studies the closed rolling forming of the annulus with special-shaped section, and obtains the mechanism of warpage and fishtail defect in the rolling process of the profiled ring, and analyzes the influence of the shape of the blank section on the warpage and the fishtail defect. In order to optimize the shape of blank section, the countermeasures to control these defects are put forward. The results show that the straight wall height of the inner hole of the blank is designed to be equal to the height of the flange and the inner surface of the neck is designed as a cone, which can eliminate the torque produced by rolling, reduce the warping phenomenon obviously and make the rolling proceed smoothly. The inclination angle of the outer surface of the blank neck is designed to be 30 擄, the fish tail defect is minimized, and the full forming of the ring is realized. The simulation results were used in practical production and qualified products were obtained.
【作者單位】： 太原科技大學(xué)材料科學(xué)與工程學(xué)院;
【基金】：山西省自然科學(xué)基金資助項(xiàng)目(2013011022-3) 山西省研究生優(yōu)秀創(chuàng)新項(xiàng)目(20123101)
【分類號(hào)】：TG335

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相關(guān)期刊論文 前1條

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本文編號(hào)：1940551