Forging technique of full fiber for hollow cone axis in express locomotive

A technology of high-speed locomotives and hollow cones, applied in the direction of manufacturing tools, mechanical equipment, engine components, etc., can solve the problems of discontinuous and unsmooth metal fibers of hollow cone shafts, improve mechanical properties, ensure reliability and accuracy, and improve performance Effect
CN100382915CInactive Publication Date: 2008-04-23DALIAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
DALIAN UNIV
Publication Date
2008-04-23
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A full-fiber forge technology for manufacturing the conic hollow shaft of high-speed locomotive includes such steps as quantitative blanking, choosing steel pipe with proper diameter, fixing upper die to hammer, fixing lower die to hammer base, putting the conic core die in the heated seamless steel pipe, and forging for alternative elongating and shaping. It features the continuously distributed metallic fibers for higher mechanical performance.
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Description

Technical field:

[0001] The full-fiber forging process of the hollow cone shaft of high-speed locomotives is a process for forging hollow cone shafts of high-speed locomotives with molds for heating workpieces. Background technique:

[0002] The hollow shaft of a high-speed locomotive is an important part of the bogie. Its performance directly affects the driving safety of the locomotive. The other end is connected with the three-claw disc. If the cone shaft body and flange are processed separately and then the cone shaft body and flange are welded, the metal fiber of the hollow cone shaft obtained is discontinuous and not smooth, which will inevitably cause problems such as harmful internal stress and low strength. The performance directly affects the driving safety of the locomotive. Invention content:

[0003] The invention solves the technical problem that the metal fiber of the hollow cone shaft of the high-speed locomotive is discontinuous and not smooth, and provi...

Claims

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