0
TECHNICAL PAPERS

Numerical Simulation of a Heat-Treated Ring Gear Blank

[+] Author and Article Information
C. Mgbokwere

Scientific Research Laboratory, Ford Motor Company, Dearborn, MI 48121

M. Callabresi

MLC Technical Consultant, Livermore, CA 94550

J. Eng. Mater. Technol 122(3), 305-314 (Mar 02, 2000) (10 pages) doi:10.1115/1.482802 History: Received December 01, 1999; Revised March 02, 2000
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Ring gear blank used for simulation
Grahic Jump Location
Heat treat process model schematic
Grahic Jump Location
(a) Illustration of regions where heat transfer coefficient is applied. (b) Location of thermocouples on the gear blank.
Grahic Jump Location
Two-dimensional mesh used in the simulation
Grahic Jump Location
Results of the carbon diffusion analysis. (a) Carbon contour plot and (b) carbon gradient from bottom inside diameter inward.
Grahic Jump Location
Optimum distribution of the ten heat transfer coefficient
Grahic Jump Location
Comparison of measured and calculated time-temperature profile
Grahic Jump Location
Temperature distribution at four different time intervals
Grahic Jump Location
(a) Contour plot of phase volume fraction at 12.8 s. (b) Contour plot of phase volume fraction at 44.5 s. (c) Contour plot of phase volume fraction at 240 s. (d) Contour plot of phase volume fraction at 780 s.
Grahic Jump Location
Contour plot of the hardness with the Rockwell C conversion in parenthesis. Also shown are four locations of the phase volume fraction at 780 s.
Grahic Jump Location
Calculated phase volume fraction from the surface of the blank to the core
Grahic Jump Location
Optical micrographs of center core sections (a) bottom and (b) top. The bottom microstructure is a bainite formed at a higher temperature with more ferrite than the top microstructure which consists of bainite and martensite.
Grahic Jump Location
Evolution of volume fraction in the bottom core (a) and from the bottom inside surface (b) as a function of time with corresponding calculated cooling curve
Grahic Jump Location
Calculated stress and temperature profile as a function of time at four different locations. (a) Stress in the longitudinal direction (b) stress in the hoop direction.
Grahic Jump Location
Contour plot of stresses and plastic strain
Grahic Jump Location
Comparison between computed and measured stresses. (a) Current simulation (b) previous simulation.
Grahic Jump Location
Illustration of the computed and measured displacement. (a) Current simulation (b) previous simulation.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In