Title:
METHOD FOR MANUFACTURING RAILWAY VEHICLE WHEEL-MOUNTED BRAKE DISCS
Document Type and Number:
WIPO Patent Application WO/2023/167386
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing railway vehicle wheel-mounted brake discs, which are mounted at both sides of a railway vehicle wheel, the method comprising: a forging step of molding, by ring rolling, a steel material into a disc-shaped base having a center hole formed in the center thereof; a primary thermal treating step of normalizing and thermally treating the base; a secondary thermal treating step of thermally treating the base through quenching and annealing; (S4) a primary machining step of mechanically-machining the outer surface of the base; a primary inspection step of performing non-destructive inspection on the internal state of the base; a cooling fin formation step of manufacturing a disc by forming, through metal 3D printing, a plurality of cooling fins on one surface of the base having a good inspection result; a secondary inspection step of performing non-destructive inspection on the internal state of the disc; and a secondary machining step of manufacturing a final product by mechanically-machining the disc having the good inspection result.
Inventors:
LEE TAE-YOUNG (KR)
Application Number:
PCT/KR2022/014516
Publication Date:
September 07, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
KATEM CO LTD (KR)
International Classes:
F16D65/12; B21J1/04; B21K7/14; B22F7/06; B33Y10/00; B61H5/00; C21D1/18; C21D1/26; C21D9/00
Domestic Patent References:
| WO2014175625A1 | 2014-10-30 |
Foreign References:
| KR101499868B1 | 2015-03-12 | |||
| JP2019203601A | 2019-11-28 | |||
| KR102232387B1 | 2021-03-26 |
Other References:
SINGH SUDHANSHU RANJAN, KHANNA PRADEEP: "Wire arc additive manufacturing (WAAM): A new process to shape engineering materials", MATERIALS TODAY: PROCEEDINGS, ELSEVIER, NL, vol. 44, 1 January 2021 (2021-01-01), NL , pages 118 - 128, XP093088841, ISSN: 2214-7853, DOI: 10.1016/j.matpr.2020.08.030
Attorney, Agent or Firm:
KIM, Kyung-Hwa (KR)
Download PDF:
Previous Patent: SOLAR CELL AND MANUFACTURING METHOD THEREFOR
Next Patent: METHOD FOR SYNTHESIZING SILICON CARBIDE POWDER
Next Patent: METHOD FOR SYNTHESIZING SILICON CARBIDE POWDER