Method and device for welding elongated elements
AssigneeDenys, Naamloze Vennootschap
InventorsPaul Afschrift, Walter Soete
Life of this patent
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Abstract
The present invention concerns a method for welding the far ends of two elongated elements together, whereby the above-mentioned far ends are heated up to forging temperature by rotating a ring clamped between them. A flat ring is provided between the far ends, whereby these far ends are axially drawn towards one another and, as soon as the forging temperature is reached, the elements are pushed towards one another with great force by exerting a dynamic force. The device contains driving means to rotate the ring, drawing means to draw the elongated elements towards one another and means to exert a dynamic force.
Claims19
A method for friction welding first and second elongated elements having weldable ends, the method comprising the steps of:
- axially aligning the two elongated elements with the weldable ends adjacent to one another;
- clamping the weldable ends together with a rotatable flat ring;
- rotating the ring relative to the two elongated elements to frictionally generate heat at the weldable ends to a suitable forging temperature;
- and
- pressing said elongated elements together at said weldable ends with forge welding pressure by at least one stroke exerting a sudden axial dynamic force when the weldable ends have reached the suitable forging temperature, said dynamic force generated from at least one pneumatic hammer stroke.
A method for welding two elongated elements having weldable ends by friction welding, the method comprising the steps of:
- axially aligning the two elongated elements with the weldable ends adjacent to one another;
- clamping the weldable ends together with a rotatable flat ring;
- rotating the ring relative to the two elongated elements to frictionally generate heat at the weldable ends to a suitable forging temperature;
- and
- pressing said elongated elements together at said weldable ends with forge welding pressure by at least one stroke exerting a sudden axial dynamic force when the weldable ends have reached the suitable forging temperature, said dynamic force generated by an explosion.
A device for welding first and second elongated elements having weldable ends by friction welding, said device comprising:
- a ring configured to clamp the weldable ends adjacent to one another and rotate relative to the two elongated elements;
- a driving device arranged to rotate the ring;
- a drawing device arranged to draw the elongated elements axially towards one another;
- and
- an explosion device arranged to exert at least one stroke of a sudden axial dynamic force with sufficient pressure to forge weld the weldable ends of the elongated elements together.
A device for welding first and second elongated elements having weldable ends by friction welding, said device comprising:
- a ring configured to clamp the weldable ends adjacent to one another and rotate relative to the two elongated elements;
- a driving device arranged to rotate the ring;
- a drawing device arranged to draw the elongated elements axially towards one another;
- and
- a pneumatic hammer arranged to exert at least one stroke of a sudden axial dynamic force with sufficient pressure to forge weld the weldable ends of the elongated elements together.
Dependencies are inferred from the claim text.