Invention Grant
- Patent Title: Method of forming a composite component using post-compaction dimensional change
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Application No.: US15562550Application Date: 2016-03-31
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Publication No.: US10596631B2Publication Date: 2020-03-24
- Inventor: Alan C. Taylor , Ian W. Donaldson
- Applicant: GKN Sinter Metals, LLC
- Applicant Address: US MI Auburn Hills
- Assignee: GKN Sinter Metals, LLC
- Current Assignee: GKN Sinter Metals, LLC
- Current Assignee Address: US MI Auburn Hills
- Agency: Quarles & Brady LLP
- International Application: PCT/US2016/025258 WO 20160331
- International Announcement: WO2016/164250 WO 20161013
- Main IPC: B22F7/06
- IPC: B22F7/06 ; B22F5/10

Abstract:
A method includes the sequential steps of compacting a powder metal in a tool and die set using a compaction press to form a powder metal compact, ejecting the powder metal compact from the tool and die set, positioning the powder metal compact relative to another part, and cooling the powder metal compact. When the powder metal is compacted, a temperature of the powder metal used to form the powder metal compact increases relative to ambient temperature due to deformation of the powder metal during compacting. After ejection and while the powder metal compact is still above ambient temperature, the compact is positioned relative to the other part. Then, upon the cooling of the powder metal compact, the powder metal compact dimensionally shrinks to form an interference fit between the powder metal compact and the other part thereby forming the composite component, which may be subsequently sintered.
Public/Granted literature
- US20180111201A1 Method of Forming a Composite Component Using Post-Compaction Dimensional Change Public/Granted day:2018-04-26
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