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Abstract：
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In order to slove the problems of the bigger grain size,ununiformity of the structure,ineligibility of ultrason- ic test and ineligible property,the forging process of the GH901 alloy shaft of a certain aeronautical engine was studied by analyzing the influence of the old and new processes on the structure and property of forging,and a new process of"reforming-drawing out-upsetting top end"was used which could optimize the structure and property of the GH901 al- loy shaft forging.By improving the forging process,the eligibility rate could be increased from 50%to 100%.The structure,property and ultrasonic test could meet the requirement of the specification.The process was checked by test and now it is being used.
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Reference：
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