Authors: V.A. Vitrenko, A.A. Efimov, A.A. Mikhailova, A.A. Stoyanov

Title of the article: Perfection of rolling tool formation scheme

Year: 2024, Issue: 6, Pages: 5-13

Branch of knowledge: 2.5.5. Technology and equipment for mechanical and physical-technical processing

Index UDK: 621.9.04

DOI: 10.26730/1999-4125-2024-6-5-13

Abstract: Perfection of design and schemes of gear-treating tools formation is one of the major trends facing production engineers and tool manufacturers which allows to obtain high-quality products at minimum production cost. Great number of gearwheels is produced by all leading enterprises of general machine-building. Gearwheels are subjected to different methods of surface-plastic deformation in order to increase their durability and improve their surface quality. More frequently teeth of wheels are rolled in a space machine-tools engagement using gear rollers obtained in a flat machine-tool engagement. Such state leads to defects in tooth being rolled such as wave of plastic deformed metal running along the surface of the tooth being treated and distortion of a gear wheel tooth profile. To eliminate these drawbacks a new formation scheme of gear rollers in a space machine-tool engagement according to the third class shape formation scheme has been offered. Developed teeth-rolling tools have higher loading ability in comparison with normal teeth rollers. Basic instrument surface of such tool is its surface of formation which allows to obtain high quality of rolled teeth at simultaneous elimination of rolling defects. This tool has high productivity in comparison with normal rollers due to linear character of teeth contact as well as a great number of turns (passes). Production of hyperbola tools surfaces is performed at NC horizontal milling machines by means of shape formation of teeth along rectilinear generation of a roller being produced. Tooth rollers obtained in accordance with the offered scheme can roll gear teeth of any geometry of a wheel.

Key words: scheme of shape formation rolling tool profile gear wheel contact lines hyperbola surface

Receiving date: 14.06.2024

Approval date: 22.11.2024

Publication date: 05.12.2024

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