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Prediction of alignment deviations on a lead crowned helical gear manufactured by a hob

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Author

  • Mattias Svahn
  • Lars Vedmar

Summary, in English

A drawback when hobbing lead crowned helical gears is that the gear tooth will be manufactured with alignment errors, often denoted flank twist. Together with other source deviations, these errors must not exceed the predetermined tolerances if the gear is to be finished hobbed. A simulation model is developed where the hobbing process can be analysed without additional errors resulting from real conditions. The result from this simulation model show very good correlation with an experimental gear ground by a hob. An analytical analysis of the manufacturing process results in a novel method to predetermine the minimum alignment deviations on a hobbed gear tooth. When selecting manufacturing methods, the results from this study can be used to determine if a hob can produce the helical gear within given tolerances.

Department/s

Publishing year

2014

Language

English

Pages

58-73

Publication/Series

International Journal of Manufacturing Research

Volume

9

Issue

1

Document type

Journal article

Publisher

Inderscience Publishers

Topic

  • Mechanical Engineering

Keywords

  • tooth alignment deviation
  • flank twist
  • gear hobbing
  • involute helical gears
  • lead crowning
  • gear manufacturing
  • gear tooth
  • simulation
  • modelling.

Status

Published

ISBN/ISSN/Other

  • ISSN: 1750-0605