CAJ | 학술논문

由于镀铝钢板的表面镀层为含硅量5%～11%的Al-Fe-Si系金属问化合物,且表面有一层极薄的Al_2O_3表面钝化层,故其具有优异的耐热性、热反射性及耐腐蚀性,常用其制作隔热汽车零部件.但当其厚度小于0.5 mm且镀层厚大于20μm时,会因镀层厚度比例的增加而降低其冲压成形性能,从而引起冲压件严重起皱及局部破裂.针对这一问题,本文选择轿车消声器隔热罩囤产化作为研究对象,对其冲压成形过程进行了模拟仿真,分析并预测了产生冲压质量缺陷的原因,并对影响冲压质量的主要参数进行了优化.模拟结果表明,经过参数优化后,有效的抑制了冲压缺陷和提高产品质量.
유우도려강판적표면도층위함규량5%～11%적Al-Fe-Si계금속문화합물,차표면유일층겁박적Al_2O_3표면둔화층,고기구유우이적내열성、열반사성급내부식성,상용기제작격열기차령부건.단당기후도소우0.5 mm차도층후대우20μm시,회인도층후도비례적증가이강저기충압성형성능,종이인기충압건엄중기추급국부파렬.침대저일문제,본문선택교차소성기격열조돈산화작위연구대상,대기충압성형과정진행료모의방진,분석병예측료산생충압질량결함적원인,병대영향충압질량적주요삼수진행료우화.모의결과표명,경과삼수우화후,유효적억제료충압결함화제고산품질량.
Because the surface coating of the aluminum-coated steel is Al-Fe-Si series inter-metallic compound that con-tains Si with the percentage of 5%- 110%, it has a good heat tolerance, heat reflective performance and anticorrosion. Thus it is widely used in the manufacturing of the heat preservation parts of car. But once the aluminum-coated steel thickness is between 20μm and 0.5 mm, the drawing properties are lowered while the proportion between coating thickness and the whole sheet steel thickness increase, and wrinkle and fracture appear in stamping. Aiming at the problem, a car-muffler heat insulation-cover was selected as the researching object and stamping simulation was applied on it. The cause of the quality defect was analyzed and predicted. Based on this, the main parameters influencing the stamping quality were optimized. Result shows that stamping defects are controlled and the product quality is greatly increased.