An Efficient Method to Fabricate the Mold Cavity for a Helical Cylindrical Pinion

Bo Wu; Likuan Zhu; Zhiwen Zhou; Cheng Guo; Tao Cheng; Xiaoyu Wu

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2023.36575

Published Article

LAPSE:2023.36575

An Efficient Method to Fabricate the Mold Cavity for a Helical Cylindrical Pinion

Bo Wu, Likuan Zhu, Zhiwen Zhou, Cheng Guo, Tao Cheng, Xiaoyu Wu

August 3, 2023

An efficient method was proposed to fabricate the mold cavity for a helical cylindrical pinion based on a plastic torsion forming concept. The structure of the spur gear cavity with the same profile as the end face of the target helical gear cavity was first fabricated by low-speed wire electrical discharge machining (LS-WEDM). Then, the structure of the helical gear cavity could be obtained by twisting the spur gear cavity plastically around the central axis. In this way, the fabrication process of a helical cylindrical gear cavity could be greatly simplified, compared to the fabrication of a multi-stage helical gear core electrode and the highly difficult and complex spiral EDM process in the current gear manufacturing method. Moreover, several experiments were conducted to verify this novel processing concept, and a theoretical model was established to show the relationship between the machine torsion angle and the helical angle of a helical gear. Based on this theoretical model, the experimental results showed that it is feasible to precisely control the shape accuracy of a helical cylindrical pinion mold cavity by adjusting the machine torsion angle.

Record ID

LAPSE:2023.36575

Keywords

helical cylindrical pinion, injection mold, LS-WEDM, plastic torsion forming

Subject

Process Control

Suggested Citation

Wu B, Zhu L, Zhou Z, Guo C, Cheng T, Wu X. An Efficient Method to Fabricate the Mold Cavity for a Helical Cylindrical Pinion. (2023). LAPSE:2023.36575

Author Affiliations

Wu B: Guangdong University Engineering Technology Research Center for Precision Components of Intelligent Terminal of Transportation Tools, College of Urban Transportation and Logistics, Shenzhen Technology University, Shenzhen 518118, China
Zhu L: Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
Zhou Z: Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
Guo C: Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
Cheng T: Guangdong University Engineering Technology Research Center for Precision Components of Intelligent Terminal of Transportation Tools, College of Urban Transportation and Logistics, Shenzhen Technology University, Shenzhen 518118, China
Wu X: Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China

Journal Name

Processes

Volume

11

Issue

7

First Page

2033

Year

2023

Publication Date

2023-07-07