Verfahren und Vorrichtung zum Verbinden von Bauteilen

摘要

The invention concerns the connecting of components by friction welding, in particular for connecting pipes in situ when sinking well drill holes and/or completing bores, for example underground bores. The amounts of heat necessary for the welding process are generated by a friction element in a manner known per se, and the ends of the components to be connected are joined in an upsetting process when a weldable plasticized state has been attained. According to the invention, the friction element is a simple friction disc whose material is completely used up during the friction process in the region of the friction surfaces until the components to be connected contact each other. The resultant friction and upsetting burr is removed by utilizing the rotational energy of the friction element. Whilst reducing the level of complexity in terms of plant required, the invention permits the use of friction elements which do not have to be adapted to the exact dimensions of the components to be connected. The connection point has a simple weld seam which essentially consists of the basic materials of the components to be connected.