Monolithic precursor test coupons for testing material properties of metal-injection-molded components and methods and apparatuses for making such coupons
US11229951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2019 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2003/247
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of making a test coupon using a mold is provided. The mold defines a mold cavity that comprises a first-grip-portion cavity, a second-grip-portion cavity, an intermediate-portion cavity, interconnecting the first-grip-portion cavity and the second-grip-portion cavity, and runner cavities, directly interconnecting the first-grip-portion cavity and the second-grip-portion cavity and not directly connected to the intermediate-portion cavity. The method comprises injecting feedstock material, comprising a metal powder, into the mold cavity to form a monolithic precursor test coupon in the mold cavity, wherein the monolithic precursor test coupon comprises a first grip portion, a second grip portion, an intermediate portion, and runners. The method also comprises removing the runners from the monolithic precursor test coupon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.