Kuka Deutschland Gmbh

Stefan Fröhlke

Stefan Habersetzer

Bernd Richter

Junhua Gao

A head piece and a welding tool, in particular an FSW tool, equipped therewith, and a welding method. The head piece has a through-opening for a plasticizing welding means, in particular a rotating welding pin. The head piece also has a profiled end face which faces the workpiece during welding and has end face regions of different heights and a sloping shoulder, which conducts the plasticized material of the workpiece and connects the end face regions.

Head piece, welding tool, and welding method

A set of fittings for an FSW tool (friction-stir-welding tool) includes an adapter that can be inserted into a tool-receiving element and is designed to receive a welding rod, and a shoulder cap that includes a through-opening for the welding rod and the adapter. The shoulder cap includes a welding shoulder region adjacent to the through-opening on the outer surface. The adapter can be rotated in relation to the shoulder cap, about a longitudinal axis extending concentrically to the through-opening. The inner contour of the through-opening and a radial outer contour of the adapter have a conical shape at least on the end facing the welding point. In this way, a conical annular gap is created between the adapter and the shoulder cap, the width of which is adjustable by positioning the adapter along the longitudinal axis.

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Augsburg, Germany

Stefan Fröhlke