Stress coining tool fastened joint

Details Stress coining tool fastened joint Stress coining tool fastened joint

1973-12-10

1976-04-20

Arola, Dave W.

Joints and connections

Member deformed in situ

Deformation occurs simultaneously with action of separate,...

403388, 52758F, 85 7, F16B 710, B25G 300, F16D 100

Patent

active

039515613

ABSTRACT:
A stress coining fastened joint, for minimizing stress concentration in a wall of an aperture in a metallic structural member, the tool being a rigid elongated shaft adapted for forcible insertion through the aperture. The shaft has end portions and is provided with a plurality of different diameter, annular protuberances spaced intermediate the end portions. The largest of the protuberances has a diameter of such predetermined relationship to the diameter of the aperture, that upon a forced insertion thereof through the aperture the material forming the wall of the aperture is displaced radially substantially the difference between the diameter of the largest protuberance and the diameter of the aperture. The displaced material will thereafter rebound approximately one-half of the initial displacement. The stress coining tool may be combined with a conventional fastener to provide a simultaneous stress coining and fastening operation.

REFERENCES:
patent: 1425122 (1922-08-01), McKechnie et al.
patent: 2008229 (1935-07-01), Sharp
patent: 2972274 (1961-02-01), Bombard et al.
patent: 3578367 (1971-05-01), Harvill
patent: 3779127 (1973-12-01), Speakman

Affiliated with

Also associated with

Rating

Stress coining tool fastened joint does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stress coining tool fastened joint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stress coining tool fastened joint will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1583573