Analyzing micro-geometric deviations of a helical gear profile as a function of material and machining parameters in the hobbing, shaving and carbonitriding processes

Gear materials need a more in-depth analysis to verify the conditions of chemical elements and their structural formations. Among them, the focus is often related to the thermochemical treatment process, which should ensure low levels of distortion in micro-geometry due to its high level of mechanic...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2023-06, Vol.126 (11-12), p.5665-5676
Main Authors: de Sousa Neves, Carlos Alberto, Carneiro, José Rubens Gonçalves, da Silva, Gilmar Cordeiro, Martins, Paulo Sérgio, Ba, Elhadji Cheikh Talibouya, Fernandes, Gustavo Henrique Nazareno
Format: Article
Language:English
Subjects:
Alloy steels
CAE) and Design
Carbonitriding
Chemical elements
Chromium manganese steels
Computer-Aided Engineering (CAD
Decisions
Distortion
Engineering
Helical gears
Hobbing
Industrial and Production Engineering
Machining
Manufacturing
Mechanical Engineering
Media Management
Microstructure
Original Article
Process parameters
Shaving
Steel alloys
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Summary:Gear materials need a more in-depth analysis to verify the conditions of chemical elements and their structural formations. Among them, the focus is often related to the thermochemical treatment process, which should ensure low levels of distortion in micro-geometry due to its high level of mechanical accuracy. In gear manufacturing processes where profile and helix errors are defined in operations prior to thermochemical treatment, process designers are faced with challenges to ensure tooth quality levels. Processes such as hobbing and shaving are important in gear manufacturing. This study addressed the influence of some factors on the gear manufacturing finishing process, as well as the steel alloy microstructure, on the geometric distortion levels in the profile and helix. All stages of the experiments were followed in a controlled manufacturing process, observing the behavior of micro-geometric parameters in each manufacturing phase in the hobbing, shaving, and carbonitriding processes. This analysis was performed on DIN 19MnCr5 alloy steel batches whose microstructures are different, after analyzing them in a laboratory to characterize each one. These observations can lead to important decisions being taken in the manufacturing process to improve a product, regarding the profile and helix parameters. Decisions can also be made about optimizing manufacturing processes.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-023-11505-y