7A04高强铝合金的热拉深性能

发布时间：2018-05-30 11:05

  本文选题：高强铝合金 + 热拉深　； 参考：《中国有色金属学报》2017年09期

【摘要】：采用模内加热的方式,比较不同加热温度时,在不同工艺条件下0.8 mm厚7A04板料的拉深成形能力,研究7A04高强铝合金板材在热成形条件下的拉深性能。结果表明:随着温度的升高,材料的成形性能得到显著提高,在350~400℃温度区间,极限拉深尺寸达到最大值,相较于常温下的极限拉深直径提高8.8%,拉深件高度提高28.57%。由于加热时间短,不同温度成形材料的相应组织和硬度无明显变化,热拉深后材料仍保持原高强铝合金强度高的特性。
[Abstract]:The drawing forming ability of 0.8 mm thick 7A04 sheet under different heating temperature was compared by using the method of in-die heating, and the drawing properties of 7A04 high strength aluminum alloy sheet under hot forming condition were studied. The results show that the formability of the material increases significantly with the increase of temperature. In the temperature range of 350 鈩，

本文编号：1955074