METHOD FOR THE MECHANICAL CHARACTERIZATION OF A METALLIC MATERIAL FOR WHEEL DISK PRODUCTION

摘要

A method for the mechanical characterization of a metallic material for wheel disk production, comprising
- providing a specimen (10; 10') consisting of a strip of metal sheet and comprising two end portions (11; 11', 12') and an intermediate portion (13; 13') interconnecting the end portions (11; 11', 12'), wherein the intermediate portion (13; 13') has a curved shape and simulates, or is constituted by, a radial profile extract of a radially outer disk portion (A) of a wheel disk, and
- subjecting the specimen (10; 10') to a fatigue test, wherein one of the end portions (11; 11') is clamped to a load applying part (CD) of a test apparatus, and the other end portion (11; 12') is clamped to another load applying part (CD) or fixed to a support part (S) of the test apparatus.