我们曾经在560公斤空气锤上锻造过如图1所示的连杆锻件,坯料为φ140×200毫米,重24公斤,其锻造变形过程如图2。该锻造工艺有以下特点:1.大头的圆弧用垫铁印出;2.用钢三角板保证压印时上下对正;3.先压一个面的三角槽,再翻转压另一面三角槽时,下面垫一块同样的压铁,以保证上下压槽深度相等;4.用卡子卡出球头,既保证其形状尺寸的准确,又避免了与杆部偏心;5.用实心冲头单面冲孔,可避免由扩孔而使 We have forged in 560 kg air hammer connecting rod forgings shown in Figure 1 for the billet φ140 × 200 mm, weight 24 kg, the forging deformation process shown in Figure 2. The forging process has the following characteristics: 1. Large arc with a horn printed; 2. Steel triangular plate to ensure the up and down when imprinting; 3. First press one side of the triangular groove, then flip the other side when the triangular groove , The following pad a piece of the same pressure iron to ensure that the upper and lower pressure groove depth equal; 4 card stuck out of the ball, both to ensure its shape and size of the accurate, but also to avoid the eccentric with the rod; Piercing can be avoided by reaming