CAJ | 학술논문

为了探究摩擦系数对连续柔性成形的成形能力的影响，建立了力学基本方程，给出了临界摩擦系数的计算公式。根据摩擦系数对成形过程的影响，分析了不同摩擦系数条件下板料的打滑量值。针对不同成形条件对临界摩擦系数的影响问题，建立了有限元模型。对一系列连续柔性成形过程进行数值模拟，结果表明，柔性辊曲率越大，临界摩擦系数越大；上柔性辊下压量越大，临界摩擦系数越大。通过实验验证临界摩擦系数与上柔性辊下压量的关系，证明模拟结果的准确性。
위료탐구마찰계수대련속유성성형적성형능력적영향，건립료역학기본방정，급출료림계마찰계수적계산공식。근거마찰계수대성형과정적영향，분석료불동마찰계수조건하판료적타활량치。침대불동성형조건대림계마찰계수적영향문제，건립료유한원모형。대일계렬련속유성성형과정진행수치모의，결과표명，유성곤곡솔월대，림계마찰계수월대；상유성곤하압량월대，림계마찰계수월대。통과실험험증림계마찰계수여상유성곤하압량적관계，증명모의결과적준학성。
With a focus on researching the influence of the friction coefficient on the forming limit of continuous flexi-ble forming, the basic mechanical equations were established, and the formula for evaluating the critical friction coef-ficient was given. Based on the influence of the friction coefficient on the continuous flexible forming process, the slip values under different friction coefficients were analyzed. The finite element model was presented to study the critical friction coefficient under different forming conditions. A series of the simulations of the continuous flexible forming process were carried out. The results show that the bigger the curvature of the flexible rolls is, the bigger the critical friction coefficient will be, and the bigger the downward displacement of the upper flexible roll is, the bigger the crit-ical friction coefficient will be. The experimental results verify the relationship between the critical friction coefficient and the downward displacement of the upper flexible roll, and prove the accuracy of the simulation results.