Point contact densification
AssigneeStackpole Limited
InventorsKeith Buckley-Golder, Peter Jones, D. Sarafinchan
Life of this patent
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Abstract
A method of densifying a sintered powder metal article by point contact.
Claims20
A method of densifying a sintered powder metal article with a tool having contact with said article having a surface wherein said tool and said article are relatively moved radially and axially while said tool compacts said surface to form a thread into said article to define a densified surface.
A method of densifying a sintered powder metal article having a surface with a tool having contact with said article wherein said tool and said article are relatively moved in a first and second direction while said tool compacts said surface to form a thread into said article to define a densified surface.
A method of densifying a sintered powder metal article comprising:
- (a) blending
- (i) carbon
- (ii) alloys
- (iii) iron
- (b) pressing said blend so as to produce a compact;
- (c) sintering said compact to produce a sintered powder metal article having a surface;
- (d) densifying said sintered powder metal article at ambient temperature by relative motion between said article with a tool having a point for pressing into said article in a first direction and traversing said article in a second direction during said relative motion while said tool compacts said surface so as to form a thread into said article to define a densified surface.
Apparatus for densifying a sintered powder metal article having a surface comprising;
- (a) a tool having a rounded peripheral edge defining a point for contacting said sintered powder metal article;
- (b) means for generating relative motion between said tool and said article for pressing said tool into said article in a first direction and traversing said article in a second direction during said relative motion while said tool compacts said surface to form a thread into said article to define a densified surface.
Dependencies are inferred from the claim text.