精密成形工程
精密成形工程
정밀성형공정
METAL FORMING TECHNOLOGY
2012年
6期
9-11,33
,共4页
浮动凹模%径向加压%拉深%数值模拟
浮動凹模%徑嚮加壓%拉深%數值模擬
부동요모%경향가압%랍심%수치모의
floating-female die%independent radial pressure%drawing forming%numerical simulation
提出了一种浮动凹模主动径向加压的工艺方法，分析了凸凹模夹紧坯料在拉深过程中的力学特点，说明了该方法能提高板料成形能力的技术关键，以带法兰的筒形件拉深为研究对象，运用LS—DYNA对采用该工艺方法和常规拉深进行有限元模拟并比较，结果表明，该工艺方法的拉深效果是显著的。
提齣瞭一種浮動凹模主動徑嚮加壓的工藝方法，分析瞭凸凹模夾緊坯料在拉深過程中的力學特點，說明瞭該方法能提高闆料成形能力的技術關鍵，以帶法蘭的筒形件拉深為研究對象，運用LS—DYNA對採用該工藝方法和常規拉深進行有限元模擬併比較，結果錶明，該工藝方法的拉深效果是顯著的。
제출료일충부동요모주동경향가압적공예방법，분석료철요모협긴배료재랍심과정중적역학특점，설명료해방법능제고판료성형능력적기술관건，이대법란적통형건랍심위연구대상，운용LS—DYNA대채용해공예방법화상규랍심진행유한원모의병비교，결과표명，해공예방법적랍심효과시현저적。
New technique of floating-female die with independent radial pressure is introduced, mechanical characteristics of punch and female die clamping sheet metal in deep drawing are analyzed, the technique key of this process to improve sheet formability is illustrated. Taking cylindrical cup with flange as example of study, and the technical key to improve forming property of sheet metal is proposed. Two processes to form cylindrical cup with flange are simulated by LS-DYNA, these processes include the new forming process by floating-female die with independent radial pressure, the common forming process. It is shown by comparison that this new process is better.
