Cold Sizing of Cold- and Hot-Formed Gears
- verfasst von
- B. A. Behrens, E. Doege
- Abstract
Today's markets require industrial forgers to manufacture complex near net shape or net shape parts at minimum unit costs. One way of meeting this challenge is to combine a cold or hot forming process with a subsequent cold sizing process in order to achieve the desired tolerances. In this context, a closed-die cold sizing process of a straight-toothed planetary gear has been investigated in terms of the occurring elastic die deflection which is a threat to accuracy in this and any other cold forming process. Two strategies have been employed to minimize the elastic die deflection. The first strategy consists in a correction of the die cavity's tooth profile based on the finished part's deviation from its theoretical shape determined through Finite-Element-Analysis (FEA). The key idea underlying the second strategy is an innovative tooling concept which compensates the elastic die deflection by means of a counter pressure generated by an elastomer ring embedded in the lower die. The advantages of this active concept have been confirmed in numerical and experimental investigations.
- Organisationseinheit(en)
-
Institut für Umformtechnik und Umformmaschinen
- Typ
- Artikel
- Journal
- CIRP Annals - Manufacturing Technology
- Band
- 53
- Seiten
- 239-242
- Anzahl der Seiten
- 4
- ISSN
- 0007-8506
- Publikationsdatum
- 2004
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Maschinenbau, Wirtschaftsingenieurwesen und Fertigungstechnik
- Elektronische Version(en)
-
https://doi.org/10.1016/S0007-8506(07)60688-X (Zugang:
Geschlossen)
