Process monitoring for high-speed joining

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United States of America Patent

PATENT NO 9731340
SERIAL NO

13503595

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Importance

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Abstract

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A process monitoring method for a joining operation of a joining element at a speed of at least 5 m/s, in particular placing a bolt at least 10 m/s into at least one component with the aid of a placing device which has the following features: A plunger for placing the joining element, a buffer which limits a maximum deflection of the plunger in the joining direction, and a distance measurement with which the deflection of the plunger can be detected, wherein the process monitoring comprises the following steps: Detecting the travel of the plunger during the joining operation as a function of time in the form of a distance-time curve, detecting a placement of the plunger on the buffer, evaluating the distance-time curve such that, in the presence of at least one maximum followed by at least one minimum in the distance-time curve and without the plunger contacting the buffer, a joint connection is judged to be OK.

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Patent Owner(s)

Patent OwnerAddress
BOLLHOFF VERBINDUNGSTECHNIK GMBH33649 BIELEFELD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Draht, Torsten Schloss Holte, DE 32 268
Kolac, Adnan Bielefeld, DE 4 17

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