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US 6,486,432 B1Granted
Method and laser cladding of plasticating barrels
AssigneeSpirex Corporation
InventorsPaul N. Colby, Joeo M. Gatti, Shawn P. Bodnar, Paul T. Colby
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AssigneeSpirex Corporation
InventorsPaul N. Colby, Joeo M. Gatti, Shawn P. Bodnar, Paul T. Colby
Estimating the term…
A system and process is provided for cladding the interior of plasticating barrels or any other interior surface. The cladding operation uses a laser head that carries out a spiral welding operation to create a smoother lining than is capable with conventional welding techniques. A number of different techniques can be used, including the use of feeding laser energy at one end of a tube to be reflected from laser aiming optics inserted through a second end of the tube. Unidirectional welding can be used to facilitate gravity as a smoothing agent. In another embodiment omnidirectional welding can be carried out using a shaped mirror and a donut-shaped laser pattern. The cladding operation can be simplified by baking a coating of the welding matrix and anti-abrasive material onto the interior of the surface to be clad prior to the welding operation.
A method of lining a metal tube by laser welding, said process comprising the steps of:
A method of lining a metal multidiretional tube by laser-welding, said method comprising the steps:
A method of cladding an interior surface by laser-welding, said method comprising the steps of:
A method of lining a tube comprising the steps of:
Dependencies are inferred from the claim text.