发明授权
US07412866B2 Tubular articles with varying wall thickness and method of manufacturing same 有权
具有不同壁厚的管状制品及其制造方法

Tubular articles with varying wall thickness and method of manufacturing same
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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