Screw driving-in process

Details Screw driving-in process Screw driving-in process

B - Operations, Transporting

25

B

B25B 21/02 (2006.01)

Patent

CA 2208700

In a process for driving in a self-boring, self-piercing, thread-shaping or thread-cutting screw (1), an axial percussion effect (6) is added to the rotary drive (7) during the hole boring step. During the thread-shaping step, the axial percussion effect is stopped and only the rotary drive remains.

Selon un procédé pour enfoncer une vis (1) autoforeuse, autoperceuse, à tarauder ou à former des filets, des coups dans le sens axial (6) viennent s'ajouter au mouvement rotatif d'enfoncement (7) pendant l'étape de formation du trou. Les coups dans le sens axial sont arrêtés pendant l'étape de filetage et seul le mouvement rotatif d'enfoncement se poursuit.

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