Core Insights - The project "500MW level impulse turbine runner high toughness manufacturing technology and equipment" has achieved a significant milestone with the successful acceptance of the core topic led by China First Heavy Industries [1] - The developed full-size forged-welded structure runner components exhibit excellent and stable high-performance reserves, as well as ultra-high uniformity and consistency in organization, representing the current international top manufacturing level in this field [1] - The 500MW level forged-welded impulse turbine runner, known as the "heart" of the impulse turbine generator set, has extreme requirements for high strength and toughness due to its long service life and high reliability [1] Industry Impact - This achievement signifies that China has mastered the extreme manufacturing capability of full-size 500MW level impulse turbine runner forgings, providing solid core equipment support for major hydropower projects and energy security in the country [2] - The project team has innovatively constructed an integrated toughness manufacturing system that spans material composition optimization, precise forging shape control, efficient collaboration of processing resources, and fine-tuning of heat treatment processes [1] - The successful resolution of challenges in manufacturing ultra-large impulse turbine runners establishes the core capability for high-quality and stable production of full-size forgings, paving the way for future engineering applications [1]