The Application of Residual Stress Ultrasonic Testing Technology in Aluminum Alloy Ring Forging Machining
The residual stress in Φ2 m grade 2A14-T651 aluminum alloy ring forging was studied using ultrasonic test method.A total of eight test circles were included,including 4 inner/outer circle with a height of(40 mm、300 mm、500 mm、600 mm).Each test circle contained 36 test points uniformly distributed on each circle by a period of 10°.The test results indicate that the residual stress on each test circle exhibit a dense alternating distribution of tensile and compressive stress with a period of(40±10)°.In addition,the application strategy and effect of residual stress ultrasonic testing method in large scale ring forging machining production were introduced.
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