Title:
METHOD FOR PROCESSING PRECISION FORGING OF BEARING RING
Document Type and Number:
WIPO Patent Application WO/2018/028168
Kind Code:
A1
Abstract:
A method for processing a precision forging of a bearing ring, comprising the following processing steps: (1) preparing a ring blank having a chamfer by means of a machining process; (2) performing low-oxidizing heating or non-oxidizing heating, or not heating; and (3) shaping by means of ring rolling. The machining method in the step (1) is turning; the heating methods in the step (2) are protective atmosphere heating, vacuum heating, rapid heating by electromagnetic induction and heating by applying a protective coating to a ring blank surface; and the shaping by means of ring rolling in the step (3) is completed by means of a ring rolling mill, and a rolling path of the bearing ring is rolled out simultaneously during the ring rolling process so as to carry out integral formation of the rolling path and a ring forging.
Inventors:
LI LEI (CN)
Application Number:
PCT/CN2017/074226
Publication Date:
February 15, 2018
Filing Date:
February 21, 2017
Export Citation:
Assignee:
UNIV SHANGHAI DIANJI (CN)
International Classes:
B21H1/12
Domestic Patent References:
| WO2012002865A1 | 2012-01-05 | |||
| WO1998055248A1 | 1998-12-10 |
Foreign References:
| CN106270354A | 2017-01-04 | |||
| CN101648332A | 2010-02-17 | |||
| CN102489637A | 2012-06-13 | |||
| CN104493439A | 2015-04-08 | |||
| CN102248369A | 2011-11-23 |
Attorney, Agent or Firm:
SHANGHAI BRIDGE INTELLECTURAL PROPERTY AGENCY CO.,LTD (CN)
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