High-strength 5A06 aluminum alloy forging method

The invention discloses a high-strength 5A06 aluminum alloy forging method. According to the forging method, the alloy strengthening, fine grain strengthening and cold hardening effects of a 5A06 aluminum alloy are improved by adopting a three-way modified forging process, and the alloy strength and plasticity are improved; the alloy content ratio of the 5A06 aluminum alloy is adjusted according to the mass percent as follows: 0.2% of Zn, 6.8% of Mg, 0.1% of Cu, 0.1% of Ti, 0.8% of Mn, 0.4% of Fe, 0.4% of Si, 0.005% of Be and the balance of Al. According to the method, 5A06 alloy strengthening, fine grain strengthening and cold hardening are fully utilized, the alloy content is increased, grains are refined through three-way upsetting and drawing, and the heat treatment temperature is reduced, so that the strength and plasticity are comprehensively improved. 本发明公开了一种高强度5A06铝合金锻造方法，锻造方法采用三向改锻工艺提升5A06铝合金的合金强化、细晶强化、冷作硬化效果，提高合金强度与塑性；所述5A06铝合金的合金含量的配比按照质量百分比调整为：Zn含量0.2％，Mg含量6.8％，Cu含量0.1％，Ti含量0.1％，Mn含量0.8％，Fe含量0.4％