发明名称 |
Process and device for shaping the end of a tube with an oblong cross-section to a circular cross-section |
摘要 |
A process and device for shaping the end of a tube with an oblong cross-section to a circular cross-section, where the shaping occurs in a single radial compression stage from the exterior. The tube is disposed with its shortest axis in correspondence with two fixed opposite surfaces, having a circular profile with a radius of curvature which is approximately equal to the radius of the circular section of the tube which is to be obtained. A radial compression is then exerted along the longest axis of the oblong section of the non-deformed tube by a pair of shaping surfaces having an angular extension which is complementary to those of the fixed opposite surfaces.
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申请公布号 |
US5526670(A) |
申请公布日期 |
1996.06.18 |
申请号 |
US19940329499 |
申请日期 |
1994.10.26 |
申请人 |
BORLETTI CLIMATIZZAZIONE SRL |
发明人 |
PAROLA, ANDREA |
分类号 |
B23P15/26;B21D1/08;B21D3/14;B21D41/00;B21D41/04;B29C53/20;F28F1/10;(IPC1-7):B21D41/00 |
主分类号 |
B23P15/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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