Methods for friction stir welding involving dissimilar materials
US-12459052-B2 · Nov 4, 2025 · US
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by friction heat forging (B21J15/027 takes precedence; friction heat forging per se B21J5/063)
by friction heat forging (B21J15/027 takes precedence; friction heat forging per se B21J5/063) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B21K25/005 |
| Official title | {by friction heat forging (B21J15/027 takes precedence; friction heat forging per se B21J5/063)} |
| Display label | by friction heat forging (B21J15/027 takes precedence; friction heat forging per se B21J5/063) |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and devices for connecting two dissimilar materials
US-2024058891-A1 · Feb 22, 2024 · US
Method for joining a metal component and a polymer component, and structure comprising said components
US-11602904-B2 · Mar 14, 2023 · US
Ultrasonic rivet joining of dissimilar materials
US-11253908-B2 · Feb 22, 2022 · US
Method for joining a metal component and a polymer component, and structure comprising said components
US-2021154947-A1 · May 27, 2021 · US
Ultrasonic Rivet Joining of Dissimilar Materials
US-2021129207-A1 · May 6, 2021 · US
Rivet for friction self-piercing riveting and friction self-piercing riveting connection system thereof
US-10695821-B2 · Jun 30, 2020 · US
Connecting rod for an internal combustion engine with variable compression
US-10655535-B2 · May 19, 2020 · US
Methods and Devices for Connecting Two Dissimilar Materials
US-2020016687-A1 · Jan 16, 2020 · US
Friction stir interlocking of dissimilar materials
US-2019283335-A1 · Sep 19, 2019 · US
Friction stirring interlocking of dissimilar materials
US-10369748-B2 · Aug 6, 2019 · US
Friction stirring interlocking of dissimilar materials
US-2019126561-A1 · May 2, 2019 · US
Rivet for friction self-piercing riveting and friction self-piercing riveting connection system thereof
US-2019039119-A1 · Feb 7, 2019 · US
Joining method
US-10173370-B2 · Jan 8, 2019 · US
Connecting rod for an internal combustion engine with variable compression
US-2018371986-A1 · Dec 27, 2018 · US
Cast part with a metallic functional region
US-10112231-B2 · Oct 30, 2018 · US
Cast part with a metallic functional region
US-2018043420-A1 · Feb 15, 2018 · US
System and method of friction welding a workpiece
US-9713854-B2 · Jul 25, 2017 · US
Joining method
US-2017136686-A1 · May 18, 2017 · US
Assembly having two copper sheets screwed to each other and method for producing said assembly
US-2017093052-A1 · Mar 30, 2017 · US