An efficient spur gear shaping method based on homogenizing cutting area through variational circular feed rate

Li, Linqing; Zhang, Lianhong; Yu, Bing; Wang, Kaifeng; Liu, Fucong

doi:10.1177/0954405415601639

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…In recent years, using general NC machining equipment instated of special equipment to produce gears has become a feasible way of gear manufacturing, especially in single pieces or small batch production. Li et al 13 introduced a new spur gear shaping method, which enhances process efficiency by optimizing the circular feed rate. Ding et al 14 established the NC milling model for machining spiral bevel gear.…”

Section: Introductionmentioning

confidence: 99%

Research on S-gear design, manufacturing and measuring based on NC machining center

Ren

Wang

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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This article presents a method of design, manufacturing, and measuring S-gear. S-gear is a kind of gear whose tooth profile is an S-shaped curve. The sine (cosine) gear, cycloid gear, polynomial gear, and circular arc gear are all S-gears in essence. In the S-gear transmission, the concave surface of one gear and the convex surface of the other gear contact each other. Therefore, the power transmitted by S-gear is much larger than that of the convex-convex-contact involute gear. Some scholars have studied the characteristics of S-gear, but few have explored its manufacturing. In this article, the Numerical Control (NC) machining technology of S-gear is studied in detail for its industrial application. The polynomial curve is used to construct the tooth profile of the S-gear based on the Gear Meshing Theory. The mathematical model of polynomial S-gear is established, by which involute gear can be represented as a special S-gear. The steps of generating NC codes are described. Then, the S-gear sample is processed with an NC machining center. Finally, the sample is measured with a Coordinate Measuring Machine (CMM), and the measurement results show that the accuracy of the S-gear processed by the NC machining center reaches ISO6. This research provides a feasible approach for the design, manufacturing, and measuring of S-gear.

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Section: Introductionmentioning

confidence: 99%

Research on S-gear design, manufacturing and measuring based on NC machining center

Ren

Wang

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…To improve the machining accuracy and production efficiency, many researchers have investigated the processing technology for bevel and spur gears. 8,9 Gear milling is commonly used in gear processing. Suh et al 10 studied the tool path planning algorithm for the spiral bevel gear machining process and manufactured the gear on a three-axis milling machine.…”

Section: Introductionmentioning

confidence: 99%

A generating milling method for a spur face gear using a five-axis computer numerical control milling machine

Wang

Lan

Hou

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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To improve the machining accuracy and production efficiency of face gears, this article presents a generating milling method for the spur face gear using a five-axis computer numerical control milling machine and proposes a milling principle of the spur face gear using a milling cutter. Based on the milling principle and theory of gearing, a mathematical model of the spur face gear milling cutter is established, and the design parameters of the cutter are determined. Considering the requirements of machine motion during the face gear milling process, a five-axis computer numerical control milling machine is developed to produce the face gear. Based on the structure of the milling machine, a mathematical model of the spur face gear is established, and a milling method is proposed. The spur face gear milling cutter is manufactured, and the face gear milling experiments are conducted on the self-developed milling machine. The measurement results of the tooth surface deviations indicate that the maximum deviation is 22.6 µm, and that the machined spur face gear accuracy can meet the requirements of roughing. The experimental results verify the validity of the proposed generating milling method and demonstrate that the generating milling method is an effective approach to improve the accuracy and efficiency of the spur face gear.

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“…Several works were also concerned to dimensional accuracy related with elastic deformation of tool and component. [6][7][8][9][10][11] The majority of these studies [1][2][3][4][5][6][7][8][9][10][11] concerned mainly on the elastic behavior characteristics of tool and the component in cold upsetting and cold extrusion instead of cold ironing process, and less research is engaged into spur gear parts precision forming. There is almost no research reporting about the elastic deformation characteristics for spur gear cold ironing process, especially focused on elastic deformation trend of involute curve profile.…”

Section: Introductionmentioning

confidence: 99%

Study of elastic deformation on dimensional accuracy in ironing process of spur gear

Gao

Zhou

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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The cold ironing process of a warm forged spur gear was applied to investigate the elastic distortions arising by the behavior of die elastic expansion and gear elastic recovery in this article. An elasto-plastic finite element simulation was performed to analyze the elastic behavior characteristics of gear and die. The effects of interference between gear and die on the elastic distortions were investigated through finite element simulation and experiment, respectively. The change of geometrical profile and dimension of the gear tooth were measured; the estimated dimension of ironed gear by finite element simulation was fitted to the experimental results well within the range of 5% relative error. Furthermore, in order to improve the dimensional accuracy of final forged gear, this study proposed a die cavity compensation method to compensate cavity of the ironing die, which was obtained by shrink fitting a outer ring into the initial ironing die. The optimum radial interference between stress ring and initial shrink-fitted die was calculated based on the Lame formula and thick wall cylinder theory. Finally, an experiment according to the proposed die cavity compensation method was carried out to examine the validity of analytical results and demonstrated that predicted dimensions could be achieved and dimensional accuracy greatly improved. It was shown that the manufacture gear satisfies the IOS6 class by measuring the iron-forged gear.

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An efficient spur gear shaping method based on homogenizing cutting area through variational circular feed rate

Cited by 5 publications

References 19 publications

Research on S-gear design, manufacturing and measuring based on NC machining center

Research on S-gear design, manufacturing and measuring based on NC machining center

A generating milling method for a spur face gear using a five-axis computer numerical control milling machine

Study of elastic deformation on dimensional accuracy in ironing process of spur gear

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