Helmholtz-zentrum Geesthacht Zentrum Fur Material Und Kustenforschung Gmbh

Gkss-forschungszentrum Geesthacht Gmbh

Helmholtz-zentrum Geesthacht Zentrum Für Material—und Künforschung Gmbh

Helmholtz-zentrum Geesthact Zentrum Für Material-und Küstenforschung Gmbh

Sergio De Traglia Amancio Filho

Jorge F Dos Santos

Matthias Beyer

André Bastos Abibe

Jorge Fernandez Dos Santos

Volker Abetz

Eduardo Etzberger Feistauer

Marilia Sônego

Thomas Ebel

Wiebke Sophie Junior

Orley Milagres Ferri

A method for connecting a surface-structured workpiece (SSW) and a plastic workpiece using a joining tool with a sonotrode. The method includes: positioning the SSW and the plastic workpiece on an anvil such that a structured contact surface section (SCSS) of the SSW faces a contact surface of the plastic workpiece; positioning the sonotrode in contact with an outer surface of the SSW that is opposite to the SCSS; and applying pressure to the sonotrode and/or the anvil perpendicular to the contact surface to hold the workpieces fixed between the anvil and the sonotrode and applying ultrasonic vibrations to the workpieces by the sonotrode for a predetermined period of time to induce softening of the plastic workpiece and penetrate pin-like elements of the SCSS into the plastic workpiece.

Method for connecting a surface-structured workpiece and a plastic workpiece

A method that includes: arranging plastic and further workpieces () such that an abutment surface () of the plastic workpiece () is abutted to a first surface () on the further workpiece () and a projection () on the plastic workpiece () extends through a through hole () in the further workpiece (); linearly moving a friction tool () parallel to its rotational axis () such that a friction surface () on the tool () contacts a front surface () of the projection (); linearly moving the tool () along the rotational axis () while rotating the tool () so that a pin () on the tool () penetrates and plasticizes the projection () as well as drives a portion of the plasticized projection () into an undercut () formed in the hole () of the further workpiece (); and retracting the tool () from the projection ().

Method for joining a plastic workpiece to a further workplace

The present invention relates to a method for connecting a metal workpiece and a plastic workpiece by means of a joining tool, including positioning the metal workpiece and the plastic workpiece, bringing the front end of the pin, the sleeve and the clamping ring in contact with an outer surface of the metal workpiece, rotating the sleeve and the pin so as to generate friction between the front ends of the sleeve and the pin and the outer surface of the metal workpiece, and moving the pin and the sleeve in the axial direction while both are rotated, one of the sleeve and the pin penetrating into the metal workpiece and the other of the sleeve and the pin being retracted from the outer surface thereof. The axial movement into the metal workpiece is stopped before the one of the sleeve and the pin reaches the contact surface and after stopping the axial movement the one of the sleeve and the pin is retracted from the metal workpiece and the other is moved towards the outer surface of the metal surface until the front ends of the pin and the sleeve are on the same level.

Method for joining metal and plastic workpieces

A method for connecting a plastic workpiece to a further workpiece. The method includes inserting a pin on the plastic workpiece through a through-opening in the further workpiece and abutting the first and second workpieces against one another. A friction tool, which has a clamping ring and a friction pin, is engaged to the pin and the friction pin is rotated so that frictional heat produced by friction between the friction pin and the pin brings the pin into a plastic state. The rotating friction pin is moved parallel to the axis of rotation toward the working surface so that the pin is plastically deformed.

Method for connecting a plastic workpiece to a further workpiece

A method of connecting a plastic workpiece to a further workpiece and a device for carrying out the method are shown and described. The object of providing a method with which a positive-locking connection between a plastic workpiece and a further workpiece can be produced in a short time and without considerable outlay in terms of apparatus is achieved by a method comprising the following steps: providing a plastic workpiece and a further workpiece, placing the further workpiece against the plastic workpiece, providing a connecting element on a surface of the plastic workpiece, this surface being opposite the surface against which the further workpiece bears, producing a recess in the further workpiece, this recess being provided on the surface bearing against the plastic workpiece, heating the connecting element, so that the material of the connecting element is plasticized, and pressing plasticized material into the recess.

Method and device for connecting a plastic workpiece to a further workpiece

A method of connecting a metallic bolt to a plastic work piece is shown and described. The object to provide a method which makes possible a reliable connection between metal workpieces on the one hand and plastic workpieces on the other hand is achieved in that a first plastic work piece and a metallic bolt are provided, and in that the bolt is pressed into a surface of the first plastic workpiece, the bolt being rotated during the pressing-in, and the rotational speed of the bolt being selected in such a way that the first plastic workpiece is plasticized, so that the bolt is anchored in the first plastic workpiece in a positive-locking manner after the rotation is stopped.

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Börnsen, Germany

Sergio De Traglia Amancio Filho