Transactions of Materials and Heat Treatment

Title：Evaluation and verification of design rationality for roll pass of large lentil-shaped checkered plate

Authors： Wang Feilong

Unit： University of Science and Technology Beijing Pangang Group Research Institute Co Ltd

KeyWords： checkered plate pass filling de-grooving fluency criterion

ClassificationCode：TG335

year,vol(issue):pagenumber：2020,45(12):21-27

Abstract：

By using the finite element simulation software DEFORM, the material flow characteristics of a large lentil-shaped checkered plate during rolling process were analyzed. For the first time, the criterion for judging the filling fluency of roll pass for checkered plate and the de-grooving fluency of material after formed was theoretically proposed. That is, the difference between the driving force and the friction resistance received by the material is used to characterize the roll pass filling fluency of lentil-shaped checkered plate, and the difference between the driving force component of material outlet and the friction resistance of side wall is used to characterize the fluency of de-grooving after the lentil-shaped checkered plate is formed. According to the criterion, the roll pass cavity filling fluency and de-grooving fluting fluency of the large lentil-shaped checkered plate material have been evaluated. The results show that the driving force for filling the cavity is 271 MPa, and the driving force for de-grooving is 81328 MPa, both of them are far greater than 0, which is enough to drive the material to smoothly fill the roll pass and de-groove. The simulation analysis results show that the roll pass of designed large lentil-shaped checkered plate is filled and de-grooved smoothly. The industrial test results are in good agreement with the simulation analysis results, which verifies the correctness of the proposed criterion.

Funds：

王飞龙（1977-），男，硕士，高级工程师 E-mail：wfeilong@126com

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