TURBINE ROTOR BLADE AND MEMBERS OF TURBINE ROTOR BLADE

• Main Authors: OTA ATSUO, IMANO SHINYA
• Format: Patent
• Language: English; Korean
• Published: 06.04.2020
• Subjects: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; FERROUS OR NON-FERROUS ALLOYS; FORGE FURNACES; FORGING; HAMMERING; MACHINE TOOLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; SOLDERING OR UNSOLDERING; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM; WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL

Ni기 단조 합금을 사용한 터빈 동익의 제조 방법에 있어서, 가공성이 우수하고, 냉각 구조의 설계 자유도가 높은 터빈 동익의 제조 방법을 제공한다. 본 발명의 Ni기 단조 합금을 사용한 터빈 동익에 있어서, 터빈 동익은 적어도 2개의 부재로 형성되어 있고, 부재는 각각 냉각 유체의 냉각 통로가 되는 냉각 구조 구성부가 형성되어 있으며, 부재를 일체화 한 접합부를 가지며, 접합부가 단조 조직을 갖고, 상기 접합부를 포함한 날개 전체에서 단조 조직을 갖는 것을 특징으로 한다. In a manufacturing method of a turbine rotor blade using an Ni-based forged alloy, provided is a manufacturing method of a turbine rotor blade having an excellent workability and a high degree of freedom in the design of a cooling structure. A manufacturing method of a turbine rotor blade according to the present invention is, in a manufacturing method of a turbine rotor blade using an Ni-based forged alloy, characterized by including: a softening process (S1) of increasing a ³' phase incoherent with a ³ phase that is a mother phase in the Ni-based forged alloy; a first working process (S21) of forming at least two members constituting a rotor blade by using the Ni-based forged alloy after subjected to the softening process; a second working process (S22) of forming cooling structural parts in the respective members; and a third working process (S23) of joining the members.