| 摘要 |
<p>Superalloy components are joined or repaired by mating a recess formed in one component substrate with a corresponding projection formed in another component along a contact surface and welding them together with a stud welding apparatus. A mating superalloy repair stud is formed with a stud projection whose profile conforms to the substrate recess profile along a corresponding contact surface. Both the stud and substrate are coupled to a stud welding apparatus, with the stud projection and substrate recess oriented in an opposed spaced relationship with a gap there between. The stud welding apparatus passes current between the stud projection and recess and forms an arc there between, to melt their respective opposed surfaces. The melted stud projection and substrate recess opposed surfaces are pressed into contact with each other with the stud welding apparatus, forming a weld there between.</p> |
