Patent application number | Description | Published |
20090263207 | FIXING ELEMENT FOR A FRICTION WELDING JOINT - The invention relates to a fixing element having a concentric end face forming a frictional surface for friction welding joining to a flat part by rotational force and axial force applied by the fixing element to the part, and having multiple radially oriented ridges on the end face. The ridges are limited in the direction of rotation by a front groove introduced into the friction surface, the ridges rising only slightly over the friction surface in the axial direction and being provided with a scraping surface that pushes the material scraped during the friction welding process into the front groove. | 10-22-2009 |
20090311074 | HOLE-FORMING AND THREAD-FORMING SCREW - The invention relates to a hole-forming and thread-forming screw for screwing into a sheet piece, comprising a slotted head for accommodating a tool, a threaded shank and a conically tapering hole-forming part, ribs running like threads along the hole-forming part being provided. The hole-forming part ends in a rounded, blunt end piece, and the rounded ribs, which chipless displace the material of the sheet part, are situated symmetrically opposite one another and have a pitch that is a multiple of the thread pitch. | 12-17-2009 |
20090311075 | SELF-TAPPING DRILL SCREW - The invention relates to a self-tapping drill screw that is screwable into a sheet piece and comprises a slotted head for accommodating a tool, a threaded shank, a slightly conically tapering hole-forming part and a hole-grinding part having a conical piece. The hole-grinding part has a radial shoulder that forms a hole and coaxially surrounds the conical piece, engagable with the sheet piece, in a ring-like manner, has a much larger diameter than the conical piece and merges with the hole-forming part via a rounded annular edge. | 12-17-2009 |
20090317179 | FRICTION WELDING JOINT OF A PLURALITY OF TWO-DIMENSIONAL COMPONENTS POSITIONED ON TOP OF EACH OTHER - The invention relates to a friction welding joint of a plurality of two-dimensional components positioned on top of each other, which are held together by a connecting body which rests on the upper component by means of a collar and which, after penetrating the upper component by means of its end face as a friction welding surface, forms a friction welding zone on the lower component by means of the rotation and pressure of the connecting body. This combination includes the following features:
| 12-24-2009 |
20100054893 | HOLLOW BOLT COMPRISING A LONGITUDINAL BORE - The invention relates to a process for producing hollow bolts comprising a longitudinal bore, said hollow bolts being provided with circumferential notches. The hollow bolts are provided with longitudinal grooves extending between elevations determining the bolt diameter, wherein circumferential notches are rolled onto the hollow bolts provided with the longitudinal grooves and the elevations, the longitudinal grooves being of such cross-section that some of the material displaced during rolling-on of the notches flows into the longitudinal grooves. | 03-04-2010 |
20100119772 | METHOD FOR PRODUCING A FRICTION -WELDED CONNECTION AND DESIGN OF THE FRICTION-WELDED CONNECTION - The invention relates to a method for producing a friction-welded connection between a plurality of superimposed flat components held together by a connecting member, wherein a collar of said connecting member rests on an upper component and the front end of said connecting member forms a friction-welding zone with a lower component, said friction-welding zone being produced by rotation and pressure of the connecting member. After formation of the friction-welding zone, the rotation of the connecting member ceases at the end of a first step and, in a second step, upon cessation of the rotation of the connecting member prior to contact of the collar with the upper component, a pressure is exerted on the connecting member by a pressure-applying tool, said pressure pressing the collar against the upper component because of a deformation. | 05-13-2010 |
20100186900 | FRICTION WELD ASSEMBLY OF A PLURALITY OF SUPERPOSED PLATES - The invention relates to a friction weld assembly of a plurality of superposed plates, said plates being held together by a connection body which rests on the upper plate by means of a collar and is formed as a slender cone ending in a tip. The connection body comprises a driving element in the region of the collar thereof, for the attachment of a pressure and rotation tool. A girder formed from the slender cone and penetrating from the upper plate into the lower plate, and a girder protruding from the lower plate along the inner surfaces thereof, form a friction welding region extending onto the slender cone. | 07-29-2010 |
20110073258 | APPARATUS FOR CONNECTING AT LEAST TWO PLATES - Apparatus for connecting at least two plates ( | 03-31-2011 |
20130004234 | FRICTION WELDING CONNECTION OF AT LEAST TWO STACKED PLATE-SHAPED COMPONENTS - The invention relates to a friction welding connection having at least two stacked plate-shaped components ( | 01-03-2013 |
20130094896 | CONNECTING ELEMENT FOR A FRICTION-WELDED CONNECTION FOR CONNECTING AT LEAST TWO PANEL-LIKE COMPONENTS - The invention relates to a connecting element ( | 04-18-2013 |
20130223921 | CONNECTING ELEMENT FOR A FRICTION WELD CONNECTION FOR CONNECTING AT LEAST TWO PLATE-LIKE COMPONENTS - The invention relates to a connecting element ( | 08-29-2013 |