Process for tightening of a joint having a threaded joint elemen

Details Process for tightening of a joint having a threaded joint elemen Process for tightening of a joint having a threaded joint elemen

1983-05-20

1984-12-18

Ciarlante, Anthony V.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Threaded fastener stress

29240, F16B 3102

Patent

active

044884370

ABSTRACT:
A process is disclosed for tightening a joint having a threaded joint element. This invention makes it possible to apply a predetermined tightening force to the joint. The process uses the real factor of proportionality (K) between the force for tightening the joint and the screwing torque applied to the threaded element which is determined after a preliminary screwing cycle and unscrewing cycle have been performed. Application is particularly to automation of tightening of prestressed joints.

REFERENCES:
patent: 4016938 (1977-04-01), Rice
patent: 4142266 (1979-03-01), Dahl
patent: 4375121 (1983-03-01), Sigmund
patent: 4375123 (1983-03-01), Ney

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