Clustered investment-casting shells for casting thin-walled golf club-heads of titanium alloy
US7513296B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | May 20, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D13/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Investment-casting shells are disclosed that have at least one cluster of individual club-head casting molds for casting thin-walled, titanium alloy club-heads at high process yield and low material usage. The shells have respective combinations of cluster configuration and number, gating, and runners, as determined systematically. Some shell configurations include a cluster of at least ten casting molds for respective club-heads each (a) having a head-volume greater than 400 cm3, (b) defining at least one club-head wall having a thickness of less than 0.8 mm, and (c) defining at least one respective gate. The cluster is configured to produce a cast-ptoduct yield of greater than 80% at a material usage of less than 600 g, including process losses, per cast club-head. Also, at least one runner connects the gates together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.