Study on precision forming and lift-out process of small cone angle spiral bevel gear by finite element analysis

Study on precision forming and lift-out process of small cone angle spiral bevel gear by finite... Meshing tooth surface of a small cone angle spiral bevel gear appears as the spiral structures. And the cone angle pitch is small, while helix angle is large. It is very difficult for materials to precisely flow into the cavity in precision-forming process. It is also difficult to ensure that no damage is introduced in the forging rotated from the gear cavity. Deform-3D analysis shows that material deformation primarily occurs on the tooth part in the forging process. On the tooth profile, the flow of material is primarily radial direction. In the gear root area, the flow of material is the radial direction and axial compression. In the center of the tooth profile, the flow of material is primarily vertical. ADMS analysis of liftout process indicates that the spiral bevel gear can be put out of the cavity smoothly. With an increase of the pressure angle, the liftout force decreases. With an increase of the spiral angle and tooth width, the liftout force increases. Finally, spiral bevel gear Pb sample is obtained by precision plastic forming technology. It is proved that the spiral bevel gear can be manufactured by precision plastic forming technology and the numerical result is reliable. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Study on precision forming and lift-out process of small cone angle spiral bevel gear by finite element analysis

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Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-0291-4
Publisher site
See Article on Publisher Site

Abstract

Meshing tooth surface of a small cone angle spiral bevel gear appears as the spiral structures. And the cone angle pitch is small, while helix angle is large. It is very difficult for materials to precisely flow into the cavity in precision-forming process. It is also difficult to ensure that no damage is introduced in the forging rotated from the gear cavity. Deform-3D analysis shows that material deformation primarily occurs on the tooth part in the forging process. On the tooth profile, the flow of material is primarily radial direction. In the gear root area, the flow of material is the radial direction and axial compression. In the center of the tooth profile, the flow of material is primarily vertical. ADMS analysis of liftout process indicates that the spiral bevel gear can be put out of the cavity smoothly. With an increase of the pressure angle, the liftout force decreases. With an increase of the spiral angle and tooth width, the liftout force increases. Finally, spiral bevel gear Pb sample is obtained by precision plastic forming technology. It is proved that the spiral bevel gear can be manufactured by precision plastic forming technology and the numerical result is reliable.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Apr 5, 2017

References

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