J-GLOBAL ID:200904065678614703  Research Project code:9911004169 Update date:Dec. 15, 2003

Development of large-sized high-strength welded bellows

Study period:1998 - 1999
Organization (1):
Investigating Researcher (4):
Research overview:
For developing large-sized bellows with high fatigue strength using Ni-based super-alloys such as Hastelloy, YAG laser welding technique optimum for the development is established and the equipment automatization is conducted. This Center analyzes the metal structure of the welded spot of Hastelloy as well as conducts line and surface analyses using EPMA in order to evaluate the result of metallurgical analysis on the shape of connection spot obtained based on different welding conditions, using fatigue test results.
Keywords (3):
bellows ,  YAG radar ,  welding
Research program: Small and Medium Enterprise Fundamental and Creative Technology Development Program

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