Retention pin and method of forming
AssigneeRolls-Royce North American Technologies Inc.
InventorJames C. Muskat
Life of this patent
Estimating the term…
Abstract
An improved retention pin assembly and method of forming a pin assembly that uses a melt in a pocket without a metallurgical joint having been formed. The assembly can be generated by a method of forming a joint which includes providing a metal shaft and a member that is operable to receive the shaft. A pocket is formed within the member which operates to receive a melt pool. Next the shaft is inserted into apertures in the member. A welding or melting operation is then performed to create a melted portion that occupies the pocket. A joint is created using a retention pin.
Claims20
A retention pin assembly comprising:
- a stud, the stud having a head, a shaft and a deformable end;
- at least one support member, the support member having an opening for receiving the stud, the support member further including a pocket;
- and
- the deformable end of the stud is operable to be melted to form a mechanical retainer within the pocket without forming a metallurgical joint between the stud and the pocket.
A pin joint comprising:
- a shaft having a first end and a second end;
- an enlarged head located on the first end of the shaft;
- a first diameter of the shaft that is located adjacent the enlarged head;
- a second diameter on the shaft that is located near the second end;
- the second end of the shaft being melted to have a third diameter, and the third diameter is greater than the first or second diameter of the shaft.
A method of forming a joint comprising the steps:
- providing a metal shaft;
- providing a member that is operable to receive the shaft;
- forming a pocket in the member;
- inserting the shaft into the member;
- and
- melting a portion of the shaft to create a melted portion, the melted portion occupying the pocket.
Dependencies are inferred from the claim text.