Powdered metal as a sacrificial material for ultrasonic additive manufacturing
US10443958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2250/106
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A manifold structure and method of forming a structure having at least one enclosed cavity includes using an ultrasonic additive manufacturing (UAM) process to build up a solid component, forming a cavity in the solid component, filling the cavity with a sacrificial material, using a UAM process to build up a finstock layer over the cavity filled with the powder material to enclose the cavity and form the enclosed cavity, and removing the sacrificial material from the enclosed cavity after the finstock layer is ultrasonically welded to the solid component. The sacrificial material has an adequate density to support the UAM process of forming the finstock layer over the cavity and the material may be removed from the enclosed cavity, resulting in an enclosed cavity having smooth surfaces with an optimal fluid flow area therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.