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Method Of Manufacturing A Crown Wheel
Abstract: A Method Of Manufacturing A Crown Wheel, And A Crown Wheel ABSTRACT The invention discloses a method of producing a Crown Wheel involving production of a ring by ring rolling process and further production of near net shape tooth profile by sequential stepwise forging. Conventional methods have several disadvantages e.g. excessive machining time, expensive gear cutting equipment, short life of cutting tools, possible strain hardening and residual stresses in the cold-forged parts and subsequent distortion during heat treatment and a high level of rejection of parts, among others. The invention discloses a method of manufacturing near-net shape crown wheel comprising the steps of making an annular ring using hammer forging, punching, piercing and ring rolling followed by blocker and finisher forging for manufacturing of gear teeth on the ring. Blocker forging is followed by trimming and piercing operation for flash removal. Hot forging operation (hammer blocker forging and finisher forging) is followed by cold coining process for improving the precision of the as-forged teeth profile. Representative figure: Figure 2
Notices, Deadlines & Correspondence
Patent Information
Applicants
Bharat Forge Limited
Inventors
1. Dr. KALYANI, Babasaheb Neelkanth
2. KALYANI, Basavraj Prabhakar
3. TAKALE, Madan Umakant
Specification
DESC:pdf file is attached ,CLAIMS:pdf file is attached
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 201621002071-IntimationOfGrant15-02-2023.pdf | 2023-02-15 |
| 1 | Power of Attorney [20-01-2016(online)].pdf | 2016-01-20 |
| 2 | 201621002071-PatentCertificate15-02-2023.pdf | 2023-02-15 |
| 2 | Form 3 [20-01-2016(online)].pdf | 2016-01-20 |
| 3 | Drawing [20-01-2016(online)].pdf | 2016-01-20 |
| 3 | 201621002071-AMMENDED DOCUMENTS [07-02-2023(online)].pdf | 2023-02-07 |
| 4 | Description(Provisional) [20-01-2016(online)].pdf | 2016-01-20 |
| 4 | 201621002071-FORM 13 [07-02-2023(online)].pdf | 2023-02-07 |
| 5 | 201621002071-FORM-26 [07-02-2023(online)].pdf | 2023-02-07 |
| 5 | 201621002071-FORM 2 TITLE PAGE POST DATED TO 22-03-2016.pdf | 2016-03-22 |
| 6 | Other Patent Document [10-03-2017(online)].pdf | 2017-03-10 |
| 6 | 201621002071-MARKED COPIES OF AMENDEMENTS [07-02-2023(online)].pdf | 2023-02-07 |
| 7 | 201621002071-POA [07-02-2023(online)].pdf | 2023-02-07 |
| 7 | 201621002071-ORIGINAL UNDER RULE 6(1A)-16-03-2017.pdf | 2017-03-16 |
| 8 | REQUEST FOR CERTIFIED COPY [22-03-2017(online)].pdf | 2017-03-22 |
| 8 | 201621002071-PETITION UNDER RULE 137 [26-11-2022(online)].pdf | 2022-11-26 |
| 9 | 201621002071-RELEVANT DOCUMENTS [26-11-2022(online)].pdf | 2022-11-26 |
| 9 | Form 18 [22-03-2017(online)].pdf | 2017-03-22 |
| 10 | 201621002071-Response to office action [26-11-2022(online)].pdf | 2022-11-26 |
| 10 | Drawing [22-03-2017(online)].pdf | 2017-03-22 |
| 11 | 201621002071-Correspondence to notify the Controller [02-11-2022(online)].pdf | 2022-11-02 |
| 11 | Description(Complete) [22-03-2017(online)].pdf_625.pdf | 2017-03-22 |
| 12 | 201621002071-US(14)-HearingNotice-(HearingDate-15-11-2022).pdf | 2022-10-11 |
| 12 | Description(Complete) [22-03-2017(online)].pdf | 2017-03-22 |
| 13 | 201621002071-Response to office action [07-06-2021(online)].pdf | 2021-06-07 |
| 13 | Assignment [22-03-2017(online)].pdf | 2017-03-22 |
| 14 | 201621002071-CLAIMS [21-05-2020(online)].pdf | 2020-05-21 |
| 14 | 201621002071-CORRESPONDENCE(IPO)-(CERTIFIED LETTER)-(17-04-2017).pdf | 2017-04-17 |
| 15 | 201621002071-CORRESPONDENCE(IPO)-(DISPATCH LETTER)-(18-04-2017).pdf | 2017-04-18 |
| 15 | 201621002071-FER_SER_REPLY [21-05-2020(online)].pdf | 2020-05-21 |
| 16 | Request For Certified Copy-Online.pdf | 2018-08-11 |
| 17 | OnlinePostDating.pdf | 2018-08-11 |
| 18 | Form-2(Online)_1.pdf.pdf | 2018-08-11 |
| 19 | Form-2(Online).pdf | 2018-08-11 |
| 20 | 201621002071-FER.pdf | 2019-11-25 |
| 21 | 201621002071-FER_SER_REPLY [21-05-2020(online)].pdf | 2020-05-21 |
| 22 | 201621002071-CLAIMS [21-05-2020(online)].pdf | 2020-05-21 |
| 23 | 201621002071-Response to office action [07-06-2021(online)].pdf | 2021-06-07 |
| 24 | 201621002071-US(14)-HearingNotice-(HearingDate-15-11-2022).pdf | 2022-10-11 |
| 25 | 201621002071-Correspondence to notify the Controller [02-11-2022(online)].pdf | 2022-11-02 |
| 26 | 201621002071-Response to office action [26-11-2022(online)].pdf | 2022-11-26 |
| 27 | 201621002071-RELEVANT DOCUMENTS [26-11-2022(online)].pdf | 2022-11-26 |
| 28 | 201621002071-PETITION UNDER RULE 137 [26-11-2022(online)].pdf | 2022-11-26 |
| 29 | 201621002071-POA [07-02-2023(online)].pdf | 2023-02-07 |
| 30 | 201621002071-MARKED COPIES OF AMENDEMENTS [07-02-2023(online)].pdf | 2023-02-07 |
| 31 | 201621002071-FORM-26 [07-02-2023(online)].pdf | 2023-02-07 |
| 32 | 201621002071-FORM 13 [07-02-2023(online)].pdf | 2023-02-07 |
| 33 | 201621002071-AMMENDED DOCUMENTS [07-02-2023(online)].pdf | 2023-02-07 |
| 34 | 201621002071-PatentCertificate15-02-2023.pdf | 2023-02-15 |
| 35 | 201621002071-IntimationOfGrant15-02-2023.pdf | 2023-02-15 |
Search Strategy
| 1 | 201621002071_search_strategy_05-08-2019.pdf |