公开(公告)号：US20180178327A1

公开(公告)日：2018-06-28

申请号：US15843808

申请日：2017-12-15

申请人： Caterpillar Shrewsbury Limited

发明人： Christopher Smith ,  Chunlei Qiu ,  Moataz M.M. Attallah ,  Stefan Simeonov Dimov

IPC分类号： B23K26/342 ,  B23P6/02 ,  B23P6/04 ,  B23K26/082 ,  B23K26/06

CPC分类号： B23K26/342 ,  B23K26/0626 ,  B23K26/082 ,  B23K26/34 ,  B23K26/60 ,  B23P6/02 ,  B23P6/04

摘要： A method of remanufacturing a cylinder head comprises the steps of removing material from the cylinder head around at least a portion of a crack in the cylinder head to form a slot, and applying a compound material using direct laser deposition to fill the slot. The direct laser deposition includes performing a pre-scanning operation at a first laser power and a first scan speed, and depositing the compound material at a second laser power and a second scan speed. The second laser power and the second scan speed may be respectively equal to or different from the first laser power and first scan speed. The first laser power and the second laser power are less than or equal to 700 W. The first scan speed and second scan speed are less than or equal to 700 mm/minute.