METHOD AND DEVICE FOR IMPROVING THE QUALITY OF THE

专利名称：METHOD AND DEVICE FOR IMPROVING THE

QUALITY OF THE WELD SEAM IN FRICTIONSTIR WELDING

发明人：FÖRG, JOHANN,DEMHARTER,

MARTIN,REITENAUER, ANDREAS

申请号：EP13731662.6申请日：20130529公开号：EP2855073A1公开日：20150408

摘要：A method and a device for improving the quality of the weld seam in friction stirwelding is provided. The process of friction stir welding is effected by means of a frictionwelding tip, in which a spiral conveyor screw is provided in the spindle bearing. Thelongitudinal axis of the spindle bearing is inclined at an angle to the vertical. The slidingsurface of the rotating spindle consists of a flat sliding surface and, for the welding ofcurved seams, in each case of a sliding surface inclined at an acute angle to the slidingsurface, the friction welding tip is designed in the shape of a truncated cone. The lateralsurface of the truncated cone is formed by six trapezoidal planar parts, of which threeplanar parts each uniformly distributed at the circumference lie at an angle of 120degrees with respect to one another and account for a proportion greater than ⅙ at thecircumference.

申请人：GRENZEBACH MASCHINENBAU GMBH

地址：Albanusstrasse 1-3 86663 Asbach-Baeumenheim DE

国籍：DE

代理机构：Kindermann, Peter

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