CAJ | 학술논문

目的：研究St16钢板矩形盒拉深的成形性能。方法在St16冷轧薄板进行单轴拉伸试验的基础上,利用有限元软件eta/DYNAFORM,分析了分块变压料力控制技术与优化板坯形状两种工艺方案对矩形盒拉深成形性的影响。结果分块变压料力与优化板坯形状均可以提高矩形盒的极限拉深深度,且优化板坯形状的效果更好。两种方案的综合应用能大幅度地提高矩形盒件的拉深性能。结论通过改善法兰变形流动情况,可以大幅度提高矩形盒拉深成形性,为确定成形工艺和模具设计制造提供参考。
목적：연구St16강판구형합랍심적성형성능。방법재St16랭알박판진행단축랍신시험적기출상,이용유한원연건eta/DYNAFORM,분석료분괴변압료력공제기술여우화판배형상량충공예방안대구형합랍심성형성적영향。결과분괴변압료력여우화판배형상균가이제고구형합적겁한랍심심도,차우화판배형상적효과경호。량충방안적종합응용능대폭도지제고구형합건적랍심성능。결론통과개선법란변형류동정황,가이대폭도제고구형합랍심성형성,위학정성형공예화모구설계제조제공삼고。
ABSTRACT:The aim of this work was to study the drawing forming property of rectangular case of St16 steel blank. Based on a series of quasi-static uniaxial tensile test of St16 steel plates, eta/DUNAFORM was used to analyze the influ-ence of two kinds of process programs on the drawing forming property of rectangular case, including segmented blank hold-er with variable force control technology and optimizing blank shape. Both methods could improve the limit drawing depth of rectangular case, moreover, the effect of optimizing blank shape was better. Integrated application of these two programs could greatly improve the drawing property of rectangular case. In conclusion, the drawing forming property of rectangular case could be greatly enhanced by ameliorating the flange flow condition, providing reference for determination of the form-ing process as well as mould designing and manufacturing.