Characterizing the effect of 319 aluminum microstructure on machinability, part 2: Model validation
Document Type
Conference Proceeding
Publication Date
12-1-2005
Abstract
In Part 1 of this paper, a machining force model was developed based on an enhanced version of Zheng's Continuum Mechanics model that incorporates microstructural effects. Machining experiments identified Secondary Dendrite Arm Spacing (SDAS) as a significant microstructure feature of 319 aluminum in terms of machinability. A new material constitutive relationship that incorporates SDAS microstructure effects on the flow stress was proposed. In this part of the paper, disk turning tests are performed to simulate the orthogonal cutting process. The cutting forces obtained from some of these tests are used in concert with an inverse form of the continuum mechanics machining model to estimate the parameters in the material constitutive equation. The enhanced continuum mechanics orthogonal cutting model is then applied to predict cutting forces when machining A1319. Comparison of the model predicted and experimentally acquired cutting forces is demonstrated to show good agreement. Copyright © 2005 by ASME.
Publication Title
American Society of Mechanical Engineers, Manufacturing Engineering Division, MED
Recommended Citation
Hu, X.,
Sutherland, J.,
&
Boileau, J.
(2005).
Characterizing the effect of 319 aluminum microstructure on machinability, part 2: Model validation.
American Society of Mechanical Engineers, Manufacturing Engineering Division, MED,
16-2, 1081-1090.
http://doi.org/10.1115/IMECE2005-79654
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/11883