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您的位置: 首頁 ->  技術支持 -> 五金沖壓件為什么會出現翻料扭曲?

五金沖壓件為什么會出現翻料扭曲?


  隨著工業電子的精細化,各行業對沖壓件要求也越來越高,這其中就包括沖壓件外形。而在沖壓件外形沖裁過程中,容易產生翻料、扭曲現象,影響產品質量,本文給大家分享:五金沖壓件為什么會出現翻料扭曲?如何解決?沖壓件在級進模中,通過沖切沖壓件周邊余料的方法,來形成沖件的外形。沖壓件產生翻料、扭曲的主要原因為沖裁力的影響。沖裁時,由于沖裁間隙的存在,材料在凹模的一側受拉伸(材料向上翹曲),靠凸模側受壓縮。當用卸料板時,利用卸料板壓緊材料,防止凹模側的材料向上翹曲,此時,材料的受力狀況發生相應的改變。隨卸料板對其壓料力的增加,靠凸模側之材料受拉伸(壓縮力趨于減小),而凹模面上材料受壓縮(拉伸力趨于減小)。沖壓件的翻轉即由于凹模面上的材料受拉伸而致。所以沖裁時,壓住且壓緊材料是防止沖件產生翻料、扭曲的重點。
  沖壓件產生翻料、扭曲的原因及解決方法:
  1、沖裁時產生的沖件毛邊所致。需研修沖切刃口,并注意檢查沖裁間隙是否合理。
  2、沖裁時已產生沖件的翻料、扭曲變形,導致折彎后成形不良,需從沖裁下料工位著手解決。
  3、折彎時沖壓件失穩所致。主要針對U形及V形折彎。此問題的處理,對沖壓件進行折彎前的導位、折彎過程中的導位,以及折彎過程中壓住材料防止沖壓件在折彎時產生滑移是解決問題的重點。
  對于五金沖壓件為什么會出現翻料扭曲?如何解決?相信大家已經有所了解。沖壓件產生翻料扭曲的最主要原因還是沖裁力的影響及沖裁間隙不合理、間隙不均,通過以上方法,可以有效解決這些問題,避免沖壓件出現翻料、扭曲。
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