Inner cavity near-net-shaping device for micro cast-rolling additive manufacturing of large-scale special-shaped pipe
US11440254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Aug 9, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An inner cavity near-net-shaping device for micro cast-rolling additive manufacturing of large-scale special-shaped pipe, includes a main transmission assembly, an inner cavity near-net-shaping assembly and a main feed assembly. The inner cavity near-net-shaping assembly comprises an inner cavity mold, an expansion cylinder and an expansion push rod, the expansion cylinder is provided with a gap in a direction of a thin wall thickness thereof, an inner cavity surface of the expansion cylinder is evenly distributed along a circumferential direction thereof with the inner wedge-shaped slider, and the expansion push rod comprises a first shaft section, a second shaft section, an outer wedge-shaped slider and a third shaft section, an outer surface of the second shaft section of the expansion push rod is evenly distributed along a circumferential direction thereof with an outer wedge-shaped slider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.