One-piece work piece with tube and manufacturing method thereof

An integrated, workpiece technology, applied in the field of manufacturing such workpieces, can solve the problem of expensive manufacturing of pipes, and achieve the effect of simplifying manufacturing
CN103883869BInactive Publication Date: 2017-08-04HIRSCHVOGEL UMFORMTECHN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HIRSCHVOGEL UMFORMTECHN
Publication Date
2017-08-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a one-piece workpiece with a tube portion and a method of manufacturing the same. The tube ( 4 ) is arranged, for example annularly, in a region extending around the axis (A) of the workpiece ( 2 ), wherein the tube ( 4 ) is formed by shaping. The workpiece ( 2 ) also has a form-fitting connection ( 6 ) by means of which the tube ( 4 ) is joined, viewed in section through said shaft (A). The form-fit connection ( 6 ) enables particularly easy production of the workpiece ( 2 ) compared to hitherto known production methods. In particular, no welding or screw fastening is required to join the pipe sections ( 4 ).
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Description

Technical field

[0001] The present invention relates to a one-piece work piece having a pipe portion arranged in an area extending around the axis of the work piece in, for example, an annular manner, wherein the pipe portion is constructed by machining. The invention also relates to a method for manufacturing such a workpiece. Background technique

[0002] Such workpieces with matching tube parts can be manufactured by casting from steel or aluminum, wherein the tube parts are designed to be coreless. In the case of steel parts, the manufacturing can alternatively be achieved by forging processing, wherein the tube portion is formed by hot press rolls. These manufacturing methods are accompanied by high costs. The manufacture of the tube part is also expensive compared to manufacture by brazing, welding or bonding. Summary of the invention

[0003] Therefore, the present invention aims to provide a matching, one-piece work piece that can be manufactured particularly easily and...

Claims

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