Abstract
The selection and optimization of screw rolling ball process parameters were analyzed and discussed. The inner stress of ball is the major factor that affects the ball quality during screw rolling of ball. The inner stress is apt to be affected by other related process parameters. In practical, there is no specific measure to determine the parameters. In view of this situation, the influences of roller obliquity, rolling temperature, speed of roller and the outlet distance between guide boards and other parameters on the inner stress of ball were analyzed respectively through orthogonal test. The optimal combination of parameters was found through comparative study on several parameter combinations.
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