Method and device for friction stir welding

摘要

A method for friction stir welding two components, with a rotating tool that comprises a rotating or non-rotating shoulder surface for subjecting the components to a process force in the region of a joining zone, and with a stirring pin for stirring plasticized material or for plasticizing and stirring the components in the region of the joining zone, in which method a stirring pin with a section slidably plunges in a slide on which the components are supported, which slide is guided along the joining zone on a side of the component, which side faces away from the tool, so that during welding an automatic relative movement between the stirring pin and the slide or the shoulder surface of the tool and a support surface of the slide, which support surface supports the components, is made possible, as well as a device for implementing such a method.

主权项

1. A device for connecting two components by friction stir welding comprising:
a tool, a support, and a slide, wherein the tool comprises a shoulder surface for subjecting the components to a process force in the region of a joining zone and a rotatable stirring pin for stirring plasticized material or for plasticizing and stirring the components in the region of the joining zone, wherein the support has a supporting surface for placing the components, wherein a channel is formed in the supporting surface of the support, wherein the slide is guided in the channel by a plain bearing arrangement, such that the slide being movably guided along the joining zone on a side of the components, wherein said side facing away from the tool, wherein the slide comprises a further supporting surface facing towards the shoulder surface of the tool, wherein the slide is adapted for supporting the components, wherein the slide receives the stirring pin, wherein the slide is adapted for a section-by-section slidable reception of the stirring pin, wherein the slide is not fixed to the stirring pin, wherein the tool being held so as to be slidable in a vertical direction relative to the slide, and wherein a maximum height of the slide including its bearing arrangement essentially corresponds to a maximum depth of the channel, so that a supporting surface of the slide for supporting the components in the joining zone region finishes so as to be flush with the supporting surface of the support.