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. <IMAGE>
申请公布号
EP1215033(A1)
申请公布日期
2002.06.19
申请号
EP20000204460
申请日期
2000.12.12
申请人
COLBY, PAUL N.;GATTI, JOEO M.;BODNAR, SHAWN P.;COLBY, PAUL T.
发明人
COLBY, PAUL N.;GATTI, JOEO M.;BODNAR, SHAWN P.;COLBY, PAUL T.