Transactions of Materials and Heat Treatment

Title：Research on influencing factors of detection accuracy for quick forging hydraulic press

Authors： Ke Fengxian Zhang Chaozhuang Chen Baijin

Unit： Lanzhou LS Heavy Machinery Technology Co. Ltd. Key Laboratory of Intelligent Control of Metal Forming Equipment Huazhong University of Science and Technology

KeyWords： quick forging hydraulic press movable beam detection accuracy oxide scale deflection

ClassificationCode：TH137

year,vol(issue):pagenumber：2021,46(8):174-179

Abstract：

Aiming at the problem that there was a certain error between the actual sizes and the measured sizes of forgings by the displacement sensor in the current quick forging hydraulic press，for the 31.5 MN quick forging hydraulic press，the influence laws of deflection by force for movable beam on the detection accuracy of forgings were studied by mathematical modeling and finite element analysis, and the deformation laws of mobile worktables with different upper arch bending conditions were studied by finite element analysis. Then, the mathematical model of oxide scale between the lower anvil and the mobile worktable was established，and the influence law of the compaction deformation for oxide scale on the detection accuracy was studied. The results show that the influences of the deflection for movable beam and the deformation for worktable on the detection accuracy are linear，and the sizes of obtained forgings can be compensated by preset linear deformation law in the control system. However，the deformation of oxide scale is non-linear，and it is impossible to compensate the caused size detection error for forgings by preset linear deformation relationship.

Funds：

甘肃省创新基地和人才计划项目资助（18JR2JA001）

柯锋贤（1970-），男，学士，高级工程师 E-mail：kfx66@126.com

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