Method for joining two essentially metal sheet-type workpieces using friction squeeze welding
AssigneeHochschule für angewandte Wissenschaften—Fachhochshule Kempten
InventorPaul Schindele
Life of this patent
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Abstract
The invention relates to a method for joining two essentially metal sheet-type workpieces. In said method, edge regions of the workpieces to be joined are bent by up to 90° in relation to a plane of the workpiece, the bent edge regions being placed against each other, and the edge regions are then heated to a predefined joining temperature by at least one first frictional element that moves relative to the edge regions, are subjected to a certain contact pressure, and are joined while being deformed.
Claims24
A method for joining two workpieces, the method comprising:
- bending at least two peripheral regions of the workpieces out of a plane of the respective workpiece by up to 90°;
- placing the peripheral regions against one another;
- heating the peripheral regions to a predetermined joining temperature by means of at least a first frictional element undergoing a relative movement in relation to and in contact with the peripheral regions;
- and
- subjecting the first frictional element to a pressing pressure to deform and join the workpieces,
- wherein the relative movement produces the frictional heat required for joining the workpieces, and
- wherein, for the heating of the peripheral regions to the joining temperature, an additional frictional element is applied to the peripheral regions and moved in relation to the peripheral regions ahead of the first frictional element.
A method for joining two workpieces, the method comprising:
- bending at least two peripheral regions of the workpieces out of a plane of the respective workpiece by up to 90°;
- placing the peripheral regions against one another to form a contact point therebetween;
- heating the peripheral regions to a predetermined joining temperature by means of at least a first frictional element undergoing a relative motion at the contact point, in relation to and in contact with the peripheral regions at the contact point;
- and
- subjecting the first frictional element to a pressing pressure to deform and join the workpieces.
A method for joining two workpieces, the method comprising:
- bending at least two peripheral regions of the workpieces out of a plane of the respective workpiece by up to 90°;
- placing the peripheral regions against one another;
- heating the peripheral regions to a predetermined joining temperature by means of at least a first frictional element undergoing a relative movement in relation to and in contact with the peripheral regions;
- and
- subjecting the first frictional element to a pressing pressure to deform and join the workpieces,
- wherein the relative movement produces the frictional heat required for joining the workpieces, and
- wherein the joined peripheral regions are smoothed in the heated state by means of a smoothing element, which performs a relative movement in relation to the peripheral regions.
A method for joining two workpieces, the method comprising:
- bending at least two peripheral regions of the workpieces out of a plane of the respective workpiece by up to 90°;
- placing the peripheral regions against one another;
- heating the peripheral regions to a predetermined joining temperature by means of at least a first frictional element undergoing a relative movement in relation to and in contact with the peripheral regions;
- and
- subjecting the first frictional element to a pressing pressure to deform and join the workpieces,
- wherein the relative movement produces the frictional heat required for joining the workpieces, and
- wherein the first frictional element is supported on a rear side of the workpieces by a second frictional element.
Dependencies are inferred from the claim text.