Multi-head friction welding method
AssigneeMulti Orbital Systems GmbH
InventorLeonhard Crasser
Life of this patent
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Abstract
For the manufacture of miter-welded profile rod frames by friction welding, a welding apparatus with friction welding units is used with which permits the welding of all miter joints of a frame to be made concurrently within a very short period and with very little displacement of welding material.
Claims15
A multi-head friction welding process for the concurrent welding in friction welding heads of the jointure surfaces of profile frames consisting of individual profile rods, said process comprising the steps of:
- clamping the individual profile rods of the profile frames firmly in position in a friction welding head at opposite sides adjacent the jointure surfaces,
- pressing the jointure surfaces toward each other,
- oscillating respective free ends of the profile rods at opposite sides of the jointure surfaces by means of the friction welding heads, wherein the two friction welding heads oscillate in the X,Z and the Y,Z direction essentially in an opposed phase relationship,
- and oscillating the friction welding heads associated with the two free ends of each individual profile rod also essentially in an opposite phase relationship.
A multi-head friction welding apparatus with several, (preferably four), friction welding units adjustably disposed on a machine bed for welding the jointure surfaces of open and closed profile frames
- each friction welding unit consisting of two friction welding heads including each an oscillation plate with a clamping unit,
- each clamping unit including first and second clamping plates, which are movable with respect to each other and each of which can be locked to a free end of a profile rod of the profile frame,
- each jointure plane having two friction welding heads assigned thereto in an arrangement where they are movable relative to each other together with their clamping units in such a way that they are movable toward the jointure plane,
- and said mounting plate being slidable for the positioning of the friction welding heads relative to the angular orientation of the jointure plane on the machine bed in parallel guide structures and pivotably adjustable in angular guide means for proper orientation of the jointure planes.
Dependencies are inferred from the claim text.