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[CN 202110453366.4] A Design Method for Entrance Surface of Rotary Forging Hammer Die
[CN 202110453366.4] A Design Method for Inlet Surface of Rotary Forging Hammer Die Title: A Design Method for Inlet Surface of Rotary Forging Hammer Die Application Number: CN 202110453366.4 Applicant: Wuhan University of Science and Technology Application Date: 2021-6-30 Patent Type: Invention Application The present invention proposes a design method for inlet surface of rotary forging hammer die, which includes the following steps: S1, determining the required forging force in the rotary forging process; S2, establish the relationship between the forging force of the rotary forging hammer head die and the neutral surface position; S3, design rotary forging hammer heads with different types of inlet curved surfaces; S4, measure the forging penetration rate of each hammer head; S5, determine the relationship between the entrance surface of the rotary forging hammer head die, the neutral surface position and the residual stress distribution; S6, determine the entrance surface of the rotary forging hammer head die. The invention, by designing different inlet surface hammers, and by exploring the relationship between different inlet surface hammers and forging penetration rate, neutral surface position and the distribution of residual stress in the axis of the workpiece, makes a preference for different types of inlet surface hammers, and then achieves the optimal design of the inlet surface of the hammer.
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