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US 4,832,549 AGranted
Rotary welding member made of resin
AssigneeNifco Inc.
InventorsTeruji Shibayama, Yoshio Kaneko
Life of this patent
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Abstract
A rotary welding member made of synthetic resin material comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having a plurality of through holes in the direction of wall thickness thereof for the dissipation of an excessive portion of frictional heat generated during a rotary welding process whereby deleterious or degrading effects upon a base plate, to which the rotary welding member is welded, are effectively prevented.
Claims19
A rotary welding member integrally molded of synthetic resin material, comprising:
- a post portion;
- a disk-shaped flange portion integrally mounted upon one end of said post portion;
- means mounted upon said rotary welding member for enabling high-speed rotation of said rotary welding member by means of a high-speed rotating tool;
- said disk-shaped flange portion having a surface to be friction welded to a substrate as a result of partial melting of said surface of said disk-shaped flange portion in response to heat generated between said surface of said disk-shaped flange portion and said substrate as a result of friction developed between said surface of said disk-shaped flange portion and said substrate during said high-speed rotation of said welding member by said high-speed rotating tool while in contact with said substrate;
- and
- a plurality of apertures defined within said disk-shaped flange portion and extending therethrough for permitting atmospheric air to flow through said apertures whereby an excessive portion of said generated heat is dissipated so as to prevent deterioration of said substrate.
3 more elements
Dependencies are inferred from the claim text.