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3104深沖鋁板織構對初始R值的影響

Influence of Texture on Initial R-value of Deep Drawing 3104 Aluminum Sheet

  • 摘要: 以深沖鋁板R值的在線檢測為應用背景,塑性變形滑移系開動的過程為出發點,分析了初始滑移系選取的方式,并計算了不同取向3104鋁合金板的初始R值.結果表明,織構是決定板材R值最主要的因素,其中初始R值是實測R值的重要組成部分.3104鋁板中存在的織構組分決定其R0值最低、R90值最高.計算表明,111面織構有利于在明顯降低制耳效應的前提下,大幅度提高鋁板的深沖壓性能.

     

    Abstract: In consideration on the on-line R-value measurement of aluminum deep drawing sheets, the selection of initial slip systems was analyzed according to the activation process of the slip systems during plastic deformation. Initial R values of the 3104 aluminum sheet in different directions were calculated. It was shown that texture is the most important effect factor for determining R value, of which initial R value is the key part. The textures existing in the 3104 sheet decide that R0 is the lowest and R90 is the highest. The calculation indicates that the 111 fiber texture can increase the deep draw-ability drastically while the earring effect is obviously reduced.

     

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