CAJ | 학술논문

针对某壳体零件温挤压模具出现严重的热磨损、热疲劳和压塌等早期失效现象,利用DEFORM有限元模拟软件进行模拟.结果表明,不同挤压温度下模具温度场的分布是不均匀的,模具载荷、等效应力以及模具硬度随着挤压温度一的提高而减小,而磨损系数随着挤压温度的提高而增大,因此挤压温度应控制在700～800℃之间.
침대모각체령건온제압모구출현엄중적열마손、열피로화압탑등조기실효현상,이용DEFORM유한원모의연건진행모의.결과표명,불동제압온도하모구온도장적분포시불균균적,모구재하、등효응력이급모구경도수착제압온도일적제고이감소,이마손계수수착제압온도적제고이증대,인차제압온도응공제재700～800℃지간.
Aiming at die early failure,such as severe thermal wear,thermal fatigue and collapse erc,the warm extrusion process of a shell part was simulated using Deform finite element software.The results show that the die temperature field distribution is nonuniform under different extrusion temperature,the load of die,effective stress and hardness of die sharply decreases with temperature increasing,respectively,while wear coefficient increases with extrusion temperature increasing,so the extrusion temperature should be controlled at 700～800℃.