商用车侧围外板冲压开裂应变分析
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摘要
针对国内某商用车侧围外板DC06在冲压过程中出现了批量开裂的问题,通过对其力学性能和成形极限曲线进行测试,结合应变云图与成形极限图,采用网格应变分析的方法,确定了板料冲压开裂的原因。从冲压模具和冲压材料两方面入手,提出优化方案,做出相应改进措施,消除开裂缺陷。
To shoot the cracking troubles in bulk of the DC06 side frame outer panels for domestic commercial vehicles in stamping,the causes leading to cracking troubles were determined based on the test of mechanical properties and forming limit curves together with the strain cloud diagram and forming limit diagram by the grid strain analysis method. Then the optimization scheme was proposed according to the stamping die and materials for stamping so that the corresponding improvement measures were taken to eliminate the cracking defects.
To shoot the cracking troubles in bulk of the DC06 side frame outer panels for domestic commercial vehicles in stamping,the causes leading to cracking troubles were determined based on the test of mechanical properties and forming limit curves together with the strain cloud diagram and forming limit diagram by the grid strain analysis method. Then the optimization scheme was proposed according to the stamping die and materials for stamping so that the corresponding improvement measures were taken to eliminate the cracking defects.
引文
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[3]赵春晖,张斌,祝洪川.汽车前门内板冲压开裂网格应变分析[J].武钢技术,2016,54(1):30-33.
[4]康永林.现代汽车板工艺及成形理论及与技术[M].北京:冶金工业出版社, 2009.
[5]郭晶,赵广东.基于网格分析技术的汽车板选材应用[J].金属世界,2015(2):25-28.
[6]李双义,王淼,殷宇佳,等.网格应变分析技术在汽车覆盖件选材中的应用[J].天津汽车,2001(2):32-35.
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