Traditional ultrasonic or magnetic particle inspection is often difficult to evaluate the continuity of metal flow lines inside forgings。The latest research shows that,Utilizing high-resolution magnetic memory detection technology,Micro magnetic anomaly signals caused by forging folding or streamline cutting can be identified in large marine crankshaft curved arm forgings。This non-destructive testing method,To evaluate multi-directional billet opening、Whether the forging process parameters such as elongation ratio are reasonable provide new quantitative dimensions,Helps to improve the safe service life of long-life forgings such as engine crankshafts
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