Electrically assisted forming process and device for high-strength metal alloy thin-walled pipe
US12290851B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 7, 2022 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Mar 9, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrically assisted forming process and device for a high-strength metal alloy thin-walled pipe includes a die sleeve, wiring terminals, a pulse power supply, a die seat, sealing baffle plates, a drawing die, and a cooling water circulation chamber. A process for forming a high-strength metal alloy thin-walled pipe includes first, graphite or fusible metal, i.e., an aluminum rod, is introduced into a high-strength metal alloy pipe to be drawn to fill the whole pipe; and then, pulse current is introduced into a plastic deformation area of the thin-walled pipe. A cooling device can be provided to achieve a good cooling effect. The thin-walled pipe with corresponding length is cut according to a production requirement after processing is completed, and annealing treatment is performed in a vacuum heat treatment furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.