CAJ | 학술논문

基于弹塑性有限元法对零件镦粗过程进行模拟,揭示镦粗时金属的变形、应力应变场、温度场及镦粗力的分布及变化情况,探讨工艺参数对荷载的影响规律,以及不同压下率、摩擦因数及高径比下坯料金属的流动特征.研究结论对制定与优化镦粗时的参数具有参考价值.
기우탄소성유한원법대령건대조과정진행모의,게시대조시금속적변형、응력응변장、온도장급대조력적분포급변화정황,탐토공예삼수대하재적영향규률,이급불동압하솔、마찰인수급고경비하배료금속적류동특정.연구결론대제정여우화대조시적삼수구유삼고개치.
The cold upsetting process of workpiece was simulated by using elastic-plastic finite element method. Metal deforma-tion,distributions of stress,strain and temperature fields,upsetting force were discovered. The effect of the parameters on upsetting load,and the property of metal flow were discussed under the conditions of different reduction rate,friction factor and height-diameter-ratio. The results are useful to the design and optimization of parameters in the upsetting process.