Newfrey Lcc

Hans-Gerhard Kortmann

Alexander Schug

Joachim Schneider

Frank Drexler

Bernhard Göbel

A welding stud includes a shank and a head flange, which projects radially relative to the shank and whose outer circumference is of polygonal design in order to be able to apply a test torque (T) to the stud by means of a tool. The flange includes an annular section () whose front facing and radially extending annular surface is designed as a welding surface. The annular section directly adjoins the flange, and the annular section and the flange form a head section which has a uniform outside diameter (D) throughout, and wherein the polygonal shape of the flange extends over the annular section up to its front annular surface.

Stud for stud welding

A joining device for joining two parts by welding has a joining head including a lift device for linear transport of a joining unit along a lift axis relative to the joining head. The joining device executes a joining operation by transporting the joining unit out of a lift position towards a base position. The joining unit includes a boom extending outside of the joining head, at a free end of which the joining operation takes place offset and parallel to the lift axis. The joining unit is oriented relative to the joining head such that the joining unit runs out relative to the joining head in the lift position.

Joining device

A hand welding device for short-time arc welding of elements, such as metal studs, onto parts, such as metal sheets, having a handlable housing, a holding means mounted on the housing to hold an element to be welded onto a part, a reciprocating means mounted on the housing to advance and restore the holding means relative to the housing, and positioning means mounted on the housing to maintain a predetermined distance from the part, is proposed. Further, a corresponding welding apparatus having such a hand welding device and a welding gauge fastened to the part, is proposed. Here the positioning means are offset to the rear relative to the anterior end of the holding means, so that the positioning means are suitable for being supported on the welding gauge to maintain the predetermined distance. For this purpose, a vertically adjustable stop is provided on a welding gauge according to the invention.

Growing community of inventors

Vechelde, Germany

Hans-Gerhard Kortmann