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筒形件拉深孔成形工藝數(shù)值模擬分析
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    摘要:

    提出了一種能提高板料成形性能的拉深孔成形工藝，該工藝是通過減小拉深時(shí)凹模圓角處對(duì)板料的壓應(yīng)力，實(shí)現(xiàn)對(duì)板料成形性能的優(yōu)化,。以帶凸緣的圓筒形件為研究對(duì)象，對(duì)采用該工藝進(jìn)行拉深有限元模擬,，從拉深后拉深件的危險(xiǎn)斷面處厚度減薄率和成形極限圖方面得到了很好驗(yàn)證,同時(shí)分析了該工藝的成形機(jī)理和力學(xué)特征,并闡明了該工藝是提高板料成形性能的技術(shù)關(guān)鍵。

    Abstract:

    The new technique to improve forming property of sheet metal was put forward, stress on thickness of sheet metal has been decreased with drawing-hole drilled on round angle of die, and optimization of the sheet metal forming property was then achieved. Taking cylinder cup with flange as study example, deep drawing cylinder cup with flange was simulated by finite element method (FEM). It was verified theoretically with thickness reduction on critical section and FLD chart of cylinder cup with flange after deep drawing, the forming property and mechanism of new process was analyzed, and the technical key to improve forming property of sheet metal was proposed.

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施于慶,樓易.筒形件拉深孔成形工藝數(shù)值模擬分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(12):191-195.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(12):191-195.

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