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昆山鈑金加工產品變形的原因有哪些?

發布日期:2022-08-30 09:58:28

昆山鈑金加工產品變形的原因有哪些?


  眾所周知,昆山鈑金加工的主要材料是鋼板,采用鏈條和熱變形加工,會產生應力和變形。部分變形符合客戶要求,但產品構件部分變形超出客戶要求,造成加工過程中出現缺陷。那么究竟是什么造成了變形缺陷呢?昆山鈑金定制的簡單介紹。
昆山鈑金  
  昆山鈑金加工過程中鋼材變形缺陷產生的原因:
  
  1、原材料的變形主要來自于鋼材的軋制過程、運輸過程和堆放不當。
  
  在軋鋼過程中,如果出現板材受熱不均勻、軋輥彎曲不均勻、軋輥接縫不均勻等問題,就會在板材寬度方向出現受壓不均勻的現象。伸長率大的部分被伸長率小的部分約束而產生壓應力,伸長率小的部分產生拉應力。因此,當施加應力時,被拉伸的部分變得不穩定并可能變形。
  
  2、昆山鈑金加工件鋼板,尤其是薄板,容易出現局部不均勻變形、起皺變形和比較光滑的波浪形變形,有時甚至變形。較大的缺口鋼更容易彎曲變形,較小的方鋼更容易變形。熱軋后,鋼材在冷卻過程中可能會因受潮或受潮而變形。
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