| 摘要 |
A method of repairing a turbine blade in which damaged material around a lacing wire hole is removed by machining or chemical etching. New metal is then added by welding such that the lacing wire hole is much smaller or completely eliminated and prior to re-forming the lacing wire hole, flats may be formed either by the addition or removal of metal in the region of the lacing wine hole so that a lacing wire hole forming drill or machine bit can enter the turbine blade at a surface substantially normal to its direction of travel, thereby minimising any tendency of the lacing wire hole forming drill or machine bit to snatch or for the blade to vibrate. |
