本文選題：淺談 + 降低��； 參考：《鑄造技術(shù)》2013年05期

【摘要】：正1問題的提出凸凹模配合間隙與模具的使用時(shí)間(沖裁次數(shù))和沖件的斷面干凈(毛刺大小)及錐度有直接的關(guān)系。因此在使用過程中,這種情況得用刃磨來解決。為了延長使用時(shí)間就要加厚凹模的厚度尺寸,可是在實(shí)際使用過程中,沖件斷面由于材料內(nèi)部金屬顆粒在強(qiáng)大壓力突然消失的情況下,會(huì)有彈性回跳現(xiàn)象,使沖件的斷面尺寸比凹模的內(nèi)徑尺寸變大,這時(shí)沖件與凹模內(nèi)壁產(chǎn)生磨損,凹模內(nèi)孔尺寸逐漸變大,
[Abstract]:It is pointed out that the matching clearance of convex and concave die has a direct relationship with the working time of die (number of blanking) and the clean section (burr size) and taper of punching parts.Therefore, in the process of use, this situation has to be sharpened to solve.In order to prolong the service time, the thickness dimension of the thickening die is required. However, in the process of practical use, when the metal particles inside the material suddenly disappear under the strong pressure, there will be an elastic rebound phenomenon.The cross section dimension of the punch is larger than that of the die, and the inner wall of the die is worn out, and the size of the inner hole of the die increases gradually.
【作者單位】： 東營職業(yè)學(xué)院石油裝備與機(jī)電工程學(xué)院;
【分類號(hào)】：F406.72;TG385.2
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本文編號(hào)：1764551