锻压技术
鍛壓技術
단압기술
FORGING & STAMPING TECHNOLOGY
2009年
6期
74-76
,共3页
金属板料%单点渐进成形%正弦定律%成形角
金屬闆料%單點漸進成形%正絃定律%成形角
금속판료%단점점진성형%정현정률%성형각
sheet metal%single point incremental forming%sine law%forming angle
在单点渐进成形中,成形零件的厚度满足正弦定律,成形极限用最大成形角表示.本文设计了测定板料最大成形角的试验装置并通过两组试验来测定LY12M的最大成形角.首先用曲线斜率为变量的旋转类零件初步确定最大成形角范围,然后再用曲线斜率为定值的旋转类零件确定真实最大成形角.经测定,铝板LY12M的真实最大成形角为65°.该方法用来测定板料的最大成形角是简单、可行的.
在單點漸進成形中,成形零件的厚度滿足正絃定律,成形極限用最大成形角錶示.本文設計瞭測定闆料最大成形角的試驗裝置併通過兩組試驗來測定LY12M的最大成形角.首先用麯線斜率為變量的鏇轉類零件初步確定最大成形角範圍,然後再用麯線斜率為定值的鏇轉類零件確定真實最大成形角.經測定,鋁闆LY12M的真實最大成形角為65°.該方法用來測定闆料的最大成形角是簡單、可行的.
재단점점진성형중,성형령건적후도만족정현정률,성형겁한용최대성형각표시.본문설계료측정판료최대성형각적시험장치병통과량조시험래측정LY12M적최대성형각.수선용곡선사솔위변량적선전류령건초보학정최대성형각범위,연후재용곡선사솔위정치적선전류령건학정진실최대성형각.경측정,려판LY12M적진실최대성형각위65°.해방법용래측정판료적최대성형각시간단、가행적.
In single point incremental forming (SPIF), the final thickness of a deformed sheet can be predicted by the sine law, the formability in SPIF can be expressed as the maximum wall angle that a sheet would endure without frac-turing. The experimental set-up was designed and the maximum wall angle for aluminum sheet LY12M was investiga-ted by two tests. In the first test, the approximate maximum wall angle by forming the varietal wall angle conical frus-turn was obtained. In the second test, the conical frustums and obtained the maximum actual wall angles was designed. The maximum actual wall angles for aluminum sheet LY12M was 65°. This method is simple and feasible in predicting the maximum wall angle.
