本文選題：印涂鋁蓋　切入點(diǎn)：拉深　出處：《鍛壓技術(shù)》2017年01期

【摘要】：以非線性有限元軟件Dynaform為平臺,對1716印涂鋁蓋在不同單邊間隙下的沖壓拉深過程進(jìn)行數(shù)值模擬,分析了首次拉深工序件的最大壁厚、最大壁厚與最小壁厚差值、壁厚減薄率和最小壁厚隨模具單邊間隙變化的曲線;同時,綜合考慮工序的工藝特點(diǎn)、工藝要求、拉深模的磨損規(guī)律、模具壽命要求等諸多因素,最終確定拉深模單邊間隙的合理范圍,并進(jìn)行了生產(chǎn)驗(yàn)證。結(jié)果表明:拉深模單邊間隙的合理范圍是0.30~0.31 mm;模具單邊間隙為0.31 mm時,工序件最小壁厚最大,減薄率最小;考慮磨損規(guī)律和模具的壽命要求,實(shí)際生產(chǎn)中模具的單邊間隙值可取0.30 mm,可成形出合格的工序件。
[Abstract]:Based on the nonlinear finite element software Dynaform, a numerical simulation of the drawing process of 1716 imprinted aluminum cover with different unilateral clearance is carried out. The maximum wall thickness, the difference between the maximum wall thickness and the minimum wall thickness of the parts in the first drawing process are analyzed.The curve of the wall thickness thinning rate and the minimum wall thickness changing with the unilateral clearance of the die, at the same time, considering the process characteristics, the process requirements, the wear law of the drawing die, the die life requirement and many other factors, etc.Finally, the reasonable range of unilateral clearance of drawing die is determined, and the production verification is carried out.The results show that the reasonable range of unilateral clearance of drawing die is 0.30mm 0.31mm, when the gap is 0.31mm, the minimum wall thickness and thinning rate of working piece are maximum, and the wear rule and life requirement of die are considered.In actual production, the unilateral clearance value of die can be 0.30 mm, which can form qualified process parts.
【作者單位】： 四川大學(xué)制造科學(xué)與工程學(xué)院;四川職業(yè)技術(shù)學(xué)院機(jī)械工程系;
【基金】：四川省教育廳自然科學(xué)重點(diǎn)科研項(xiàng)目(15ZA0347)
【分類號】：TG386.32

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