| Original document(14 pages) 中文版 |
The invention relates to a method for producing the metal sheet with curvature hole, which comprises: preparing materials that extended and opposite arranged for forming two metal products, to form sheet; symmetry compressing that compressing the sheet via mould from up and down to form the half finished product and left edge with curvature; compressing and shearing for arranging the half finished product and left edge into mould, to punch and cut off the left edge; slicing that arranging the half finished product into mould to be punched to form two separated half finished products; and punching the arc surface that arranging the separated half finished products into the lower mould that punched with arc surface, to make the tangent of arc part vertical to the punch hole, and punch the hole to obtain the final product. |
Application Number
申请号 |
200510089392 |
Application Date
申请日 |
2005.08.05 |
| Title 名称 |
Method for manufacturing metal sheet with curved surface pore |
Publication Number
公开号 |
1907640 |
Publication Date
公开日 |
2007.02.07 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
B23P13/00 |
Applicant(s) Name
申请人 |
Hannspree, Inc. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Lu Jiye |
| Attorney & Agent 代理人 |
zhou guocheng |
| More information 更 多 信 息 |
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