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مواد و طراحی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • finite element analysis on the coined-bead mechanism during the v-bending process

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 565
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the coined-bead technique is commonly applied to solve the spring-back problem in the v-bending process. however, the coined-bead mechanism on the spring-back/spring-go feature has not been clearly identified yet. in this study, the finite element method (fem) and laboratory experiments were used to investigate the coined-bead mechanism and its effects on the spring-back/spring-go feature. the features were clearly identified using a stress distribution analysis. the results revealed that the mechanism of the coined-bead technique not only increases the compressive stress on the bending allowance zone, where the spring-back feature decreases, but also increases the reversed bending zone on the leg of the workpiece, where the spring-go feature increases. therefore, after compensating for the increases in the compressive stress and the reversed bending feature, the amount of spring-back on the bent part was decreased. the fem simulation bending force and bending angle results were agreed with those from the experimental results.

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