Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
793310 | Journal of Materials Processing Technology | 2009 | 8 Pages |
Pierce rolling is the rolling performed first in the production of seamless pipes. In both barrel-type rotary piercing and cone-type rotary piercing, the material is subjected to shearing deformation due to rotary forging. Only a few experimental studies on cone-type rotary piercing have been conducted to obtain the strain components. This paper describes the plastic deformation in the cone-type rotary piercing process using a model piercing mill with modeling clay. First, the model piercing mill is designed and fabricated, and then the effects of the cross-angle and feed angle on the strain components are clarified. It was found that, when the cross-angle is approximately 20°, the longitudinal section of the specimen before rolling becomes the longitudinal section of the specimen after rolling, irrelevant of the feed angle.