<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Gear hobs are the most widely and frequently used gear cutting tools. During the time passed between the moment of invention (Schiele, 1876) and the present, gear hobs reached a considerable evolution regarding the geometry, the profile of the edge, the relieving technologies finalizing in the latest constructive and design solutions. This paper deals with the calculus of the edge profile in the case the basic worm of the hob has involute helicoid surfaces. In order to obtain a constant grinding allowance on the relief faces of the gear hob teeth it is necessary to compute the edge of the roughing relieving cutter. The equations are deduced considering that the provenience involute worm is a one teethed helical gear with shifted profile. The presented mathematical model proves that linearizing the relieving cutter profile is not an adequate solution if aspiring to higher precision.</p></abstract>

Gear hobs are the most widely and frequently used gear cutting tools. During the time passed between the moment of invention (Schiele, 1876) and the present, gear hobs reached a considerable evolution regarding the geometry, the profile of the edge, the relieving technologies finalizing in the latest constructive and design solutions. This paper deals with the calculus of the edge profile in the case the basic worm of the hob has involute helicoid surfaces. In order to obtain a constant grinding allowance on the relief faces of the gear hob teeth it is necessary to compute the edge of the roughing relieving cutter. The equations are deduced considering that the provenience involute worm is a one teethed helical gear with shifted profile. The presented mathematical model proves that linearizing the relieving cutter profile is not an adequate solution if aspiring to higher precision.

About the Profile Accuracy of the Involute Gear Hob

Department of Mechanical Engineering, Faculty of Technical and Human Sciences

Acta Universitatis Sapientiae, Electrical and Mechanical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"About the Profile Accuracy of the Involute Gear Hob"}

Gear hobs are the most widely and frequently used gear cutting tools. During the time passed between the moment of invention (Schiele, 1876) and the present,...

About the Profile Accuracy of the Involute Gear Hob

Published Online: Jan 19, 2018

Page range: 5 - 18

Received: Sep 10, 2017

DOI: https://doi.org/10.1515/auseme-2017-0006

Keywords
gear hob, involute worm, edge, roughing, optimizing, profile

© 2017 Márton Máté et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

About the Profile Accuracy of the Involute Gear Hob

Published Online: Jan 19, 2018

Page range: 5 - 18

Received: Sep 10, 2017

DOI: https://doi.org/10.1515/auseme-2017-0006

Keywordsgear hob, involute worm, edge, roughing, optimizing, profile

© 2017 Márton Máté et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
gear hob, involute worm, edge, roughing, optimizing, profile