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Butt Welded Joint Of Steel Material And Method For Manufacturing Same
Abstract: [Problem] To provide a butt welded joint of steel materials that has excellent fatigue strength, and a method for manufacturing this butt welded joint. [Solution] A butt welded joint of steel materials wherein: a pair of steel materials abutted to each other are set as base materials 2, 2, and a welded portion 3 straddles these base materials; the carbon concentration of the base materials is 0.1 mass% to 0.35 mass%; the welded portion is formed by carrying out a first heating using keyhole welding and then reheating using heat transfer welding; the welded portion has a melt-solidified portion 3d in which the base materials are melted/solidified by the keyhole welding, a solidification-reheated portion 4 in which the melt-solidified portion is reheated by heat transfer welding, thereby changing the structure of the melt-solidified portion, and a re-melted-solidified portion 5 in which the melt-solidified portion is re-melted/re-solidified by reheating; and the width W0 and depth d0 of the melt-solidified portion and the width W1 and depth d1 of the re-melted-solidified portion 5 have the relationships 0.46W0 = W1 and 0.14d0 = d1 = 0.73d0.
Notices, Deadlines & Correspondence
Patent Information
Applicants
SMC CORPORATION
Inventors
1. OKUHIRA Hiroyuki
2. ISHIKAWA Rikiya
3. TADANO Takuya
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202147002384-IntimationOfGrant19-01-2024.pdf | 2024-01-19 |
| 1 | 202147002384-STATEMENT OF UNDERTAKING (FORM 3) [19-01-2021(online)].pdf | 2021-01-19 |
| 2 | 202147002384-PatentCertificate19-01-2024.pdf | 2024-01-19 |
| 2 | 202147002384-PROOF OF RIGHT [19-01-2021(online)].pdf | 2021-01-19 |
| 3 | 202147002384-PRIORITY DOCUMENTS [19-01-2021(online)].pdf | 2021-01-19 |
| 3 | 202147002384-CLAIMS [02-01-2023(online)].pdf | 2023-01-02 |
| 4 | 202147002384-FORM 1 [19-01-2021(online)].pdf | 2021-01-19 |
| 4 | 202147002384-COMPLETE SPECIFICATION [02-01-2023(online)].pdf | 2023-01-02 |
| 5 | 202147002384-DRAWINGS [19-01-2021(online)].pdf | 2021-01-19 |
| 5 | 202147002384-DRAWING [02-01-2023(online)].pdf | 2023-01-02 |
| 6 | 202147002384-FER_SER_REPLY [02-01-2023(online)].pdf | 2023-01-02 |
| 6 | 202147002384-DECLARATION OF INVENTORSHIP (FORM 5) [19-01-2021(online)].pdf | 2021-01-19 |
| 7 | 202147002384-FORM 3 [02-01-2023(online)].pdf | 2023-01-02 |
| 7 | 202147002384-COMPLETE SPECIFICATION [19-01-2021(online)].pdf | 2021-01-19 |
| 8 | 202147002384-OTHERS [02-01-2023(online)].pdf | 2023-01-02 |
| 8 | 202147002384-FORM-26 [18-02-2021(online)].pdf | 2021-02-18 |
| 9 | 202147002384-FER.pdf | 2022-07-08 |
| 9 | 202147002384-FORM 3 [22-06-2021(online)].pdf | 2021-06-22 |
| 10 | 202147002384-AMMENDED DOCUMENTS [24-05-2022(online)].pdf | 2022-05-24 |
| 10 | 202147002384.pdf | 2021-10-18 |
| 11 | 202147002384-Correspondence, Form-1 And POA_23-02-2022.pd.pdf | 2022-02-23 |
| 11 | 202147002384-FORM 13 [24-05-2022(online)].pdf | 2022-05-24 |
| 12 | 202147002384-FORM 18 [24-05-2022(online)].pdf | 2022-05-24 |
| 12 | 202147002384-RELEVANT DOCUMENTS [24-05-2022(online)].pdf | 2022-05-24 |
| 13 | 202147002384-MARKED COPIES OF AMENDEMENTS [24-05-2022(online)].pdf | 2022-05-24 |
| 14 | 202147002384-FORM 18 [24-05-2022(online)].pdf | 2022-05-24 |
| 14 | 202147002384-RELEVANT DOCUMENTS [24-05-2022(online)].pdf | 2022-05-24 |
| 15 | 202147002384-Correspondence, Form-1 And POA_23-02-2022.pd.pdf | 2022-02-23 |
| 15 | 202147002384-FORM 13 [24-05-2022(online)].pdf | 2022-05-24 |
| 16 | 202147002384-AMMENDED DOCUMENTS [24-05-2022(online)].pdf | 2022-05-24 |
| 16 | 202147002384.pdf | 2021-10-18 |
| 17 | 202147002384-FORM 3 [22-06-2021(online)].pdf | 2021-06-22 |
| 17 | 202147002384-FER.pdf | 2022-07-08 |
| 18 | 202147002384-FORM-26 [18-02-2021(online)].pdf | 2021-02-18 |
| 18 | 202147002384-OTHERS [02-01-2023(online)].pdf | 2023-01-02 |
| 19 | 202147002384-FORM 3 [02-01-2023(online)].pdf | 2023-01-02 |
| 19 | 202147002384-COMPLETE SPECIFICATION [19-01-2021(online)].pdf | 2021-01-19 |
| 20 | 202147002384-FER_SER_REPLY [02-01-2023(online)].pdf | 2023-01-02 |
| 20 | 202147002384-DECLARATION OF INVENTORSHIP (FORM 5) [19-01-2021(online)].pdf | 2021-01-19 |
| 21 | 202147002384-DRAWINGS [19-01-2021(online)].pdf | 2021-01-19 |
| 21 | 202147002384-DRAWING [02-01-2023(online)].pdf | 2023-01-02 |
| 22 | 202147002384-FORM 1 [19-01-2021(online)].pdf | 2021-01-19 |
| 22 | 202147002384-COMPLETE SPECIFICATION [02-01-2023(online)].pdf | 2023-01-02 |
| 23 | 202147002384-PRIORITY DOCUMENTS [19-01-2021(online)].pdf | 2021-01-19 |
| 23 | 202147002384-CLAIMS [02-01-2023(online)].pdf | 2023-01-02 |
| 24 | 202147002384-PROOF OF RIGHT [19-01-2021(online)].pdf | 2021-01-19 |
| 24 | 202147002384-PatentCertificate19-01-2024.pdf | 2024-01-19 |
| 25 | 202147002384-IntimationOfGrant19-01-2024.pdf | 2024-01-19 |
| 25 | 202147002384-STATEMENT OF UNDERTAKING (FORM 3) [19-01-2021(online)].pdf | 2021-01-19 |
Search Strategy
| 1 | 202147002384E_07-07-2022.pdf |