摘要：Drawbeads are used as control mechanism regulated the flow rate at certain locations of the sheet to minimize or prevent defects such as tearing, wrinkling and springback that occur on sheet during a sheet metal forming process. In this study, drawbead restraining force was measured for the sheet metal through blankholder and lower die with a round drawbead with various penetration. This experimental data were used and the mathematical model calculated drawbead restraining force as a function of bead penetration was developed. Comparison of the results of mathematical model with the corresponding experimental results and PAM-STAMP model was showed in excellent agreement.
其他摘要：Süzdürme çubukları, sac şekillendirme prosesinde ortaya çıkan yırtılma, kırışma ve geri esneme gibi kusurları ortadan kaldırmak veya minimuma indirmek için malzemenin kalıp boşluğuna akışını belirli bölgelerde sac üzerine frenleme (gergi) kuvveti oluştura
关键词：Drawbead;Mathematical Model;Sheet metal forming
其他关键词：Süzdürme çubuğu;Matematik Model;Sac metal şekillendirme
