发明名称 |
TUBULAR ARTICLES WITH VARYING WALL THICKNESS |
摘要 |
A method for manufacturing a one-piece axle tube housing with localized sections of increased wall thickness includes providing a tube blank, inserting a mandrel having a reduced diameter profile, passing the tube through an extrusion die to conform the tube to the shape of the mandrel; and extraction of the mandrel from the tube to cause outward deformation of the tube at specific locations. A further reducing step may be used to form the final desired profile, including reduced inner and outer diameters along sections of the axle tube housing.
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申请公布号 |
US2009038364(A1) |
申请公布日期 |
2009.02.12 |
申请号 |
US20080193417 |
申请日期 |
2008.08.18 |
申请人 |
ARCELORMITTAL TUBULAR PRODUCTS CANADA INC. |
发明人 |
JAHANI MAMAD;NEWPORT COLIN |
分类号 |
B21C25/08;B29D7/00;F16H57/02 |
主分类号 |
B21C25/08 |
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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