Verfahren und Vorrichtung zum Schweissen von Werkstuecken mit Laserstrahlung: Vorrichtung und Verfahren zum Verringern der Spaltbreite beim Fuegen von Blechen mit Laserstrahlung (A1)

Thi present invention relates to a process for reducing the gap width between two or more workpieces in order to facilitate the welding of workpieces. The invention is characterized by the fact that an impulse is transmitted in the area of the joint on at least one of the workpieces, whereby the length and the intensity of the impulses are dimensioned so that at least one of the workpieces experiences an elastic and/or plastic deformation in the direction of the impulse transmission. The invention also relates to a device with which the process can be performed. The device comprises facilities for positioning and holding the workpieces to be joined and is characterized by the fact that a tappet is provided for transmitting the impulses, said tappet having a preferably rotational-symmetrical shape, and said tappet is moved by a drive unit in the axial direction towards the workpiece facing the tappet