Method for tightening threaded joints

Details Method for tightening threaded joints Method for tightening threaded joints

1992-07-14

1993-06-08

Eley, Timothy V.

Metal working

Method of mechanical manufacture

With testing or indicating

29702, 29709, B23B 1700

Patent

active

052167950

ABSTRACT:
A method for tightening threaded joints by applying torque on the joint by means of a power tool until a predetermined pretension level in the joint is reached, whereupon a controller means connected to the power tool is arranged on one hand to initiate power shut-off and on the other hand to initiate continued successively decreasing power supply to the tool as the predetermined pretension level is passed.

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