| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine blade capable of minimizing hot crack or welding deformation by reducing a heat-affected portion or a heat gain due to welding (for example, laser powder cladding welding), and a welding method thereof.SOLUTION: A turbine blade is equipped with a blade body 13 formed with an opening portion 2, a seat 3 formed on the blade body 13 along a peripheral edge portion 2a for regulating the opening portion 2, and a cover for sealing the opening portion 2. The seat 3 and the cover 4 are welded. |
