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The Effects of Blank Geometry on Gear Rolling for Large Gear Modules: Experiments and Finite Element Simulations
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
RISE - Research Institutes of Sweden, Swerea, Swerea KIMAB.
2018 (English)In: IEEE Access, E-ISSN 2169-3536, Vol. 6, p. 33344-33352Article in journal (Refereed) Published
Abstract [en]

Gear rolling is a forming process to produce gear wheels by plastic deformation. The advantage of the process is to eliminate the chip formation during production and also to improve the product properties since the non-metallic inclusions will be oriented along the cog surface and not perpendicular to it. The method has been developed in the past years for gear production for automobile application with modules up to 3 mm. The successful application of gear rolling in those cases raises the question regarding the feasibility of using cold rolling to manufacture gears with larger modules which can be used for heavy vehicles. In this paper, a gear wheel with normal module of 4 mm has been studied in order to investigate if such large modules can be manufactured by gear rolling. One of the issues in rolling of gears is the design of the blank geometry in order to obtain the right gear geometry after the rolling process. Blank shape modifications are necessary to control and to reduce the undesired shape deviations caused by the large plastic deformations in rolling. The blank modifications also help the process designer to control the forming force and torque. In this paper, the process has been modeled by finite element simulation and the influence of different blanks has been simulated. The validity of the FE model has been checked through several experiments. Both the numerical and experimental results revealed favorable blank modifications to apply for further developments of the gear rolling process.

Place, publisher, year, edition, pages
2018. Vol. 6, p. 33344-33352
Keywords [en]
Accuracy, gears, geometry, manufacturing processes, modeling, Automobile manufacture, Cold rolling, Finite element method, Iron, Kinematics, Models, Plastic deformation, Process control, Thermal barrier coatings, Tools, Wheels, Automobile applications, Finite element simulations, Further development, Large plastic deformation, Manufacturing process, Non-metallic inclusions, Shape, Gear manufacture
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-34510DOI: 10.1109/ACCESS.2018.2847737Scopus ID: 2-s2.0-85049091766OAI: oai:DiVA.org:ri-34510DiVA, id: diva2:1237568
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Available from: 2018-08-09 Created: 2018-08-09 Last updated: 2018-08-09Bibliographically approved

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