复杂结构锻件的坯料质量分配

Blank Mass Distribution of Complex Structural Forging Part

基于对常见热锻成形零件结构的分析,研究了复杂锻件坯料的优化设计方法,并给出了以金属流长为中心的坯料质量分配原则.通过有限元模拟,研究了坯料设计对转向节热锻成形过程的影响.研究结果表明:当坯料的金属流长过大时,锻件容易出现充不满和折叠的缺陷;当金属流长为负值时,飞边宽度过大造成材料浪费;合理地改变金属流长并不会使成形载荷和材料利用率大幅度波动,这为坯料优化设计提供了新思路.

Based on the structural analysis of common hot forging parts,the optimal design method of complex forging blank was researched,the distribution law of taking the metal flow length as the center for the blank mass was given. The influence of blank design on forging process of steering knuckle was analyzed by finite element simulation. The results show that the forging part is prone to die-filling and folding defects when the metal flow length of blank is too large; the width of flash is too large hence leading to materials waste when it is negative; and a reasonable change of the metal flow length will not result in high volatility in the forming load and the materials utilization ratio,which can provide a new idea for blank optimal design.