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在分析了汽车结合齿成形工艺后,初步确定了模具结构。运用Deform-3D有限元软件对两种成形工艺方案进行了数值模拟。凹模底部做成通孔后的载荷降至初始载荷的50%。锻件成形良好,未出现折叠缺陷。对锻件的主要几何参数进行了优化,发现内孔直径52 mm、圆角半径2 mm、齿形长度8 mm时成形载荷最小。最后,对倒锥齿形的成形过程进行了模拟,并设计出模具结构。
After the analysis of the car with tooth forming process, the initial determination of the mold structure. Deform-3D finite element software was used to simulate the two forming process schemes. After making the bottom of the die through-hole load dropped to 50% of the initial load. Forgings are well formed without folding defects. The main geometric parameters of the forgings were optimized and the forming load was found to be the smallest with an inner hole diameter of 52 mm, a fillet radius of 2 mm and a toothed length of 8 mm. Finally, the forming process of the reverse bevel gear was simulated and the mold structure was designed.