A mechanistic model to predict cutting force on orthogonal machining of Aluminum 7475-T7351 considering the edge radius

The ploughing force related with action of edge radius is an important factor which influences flow stress, chip formation or surface integrity. Some fraction of the cutting forces are called parasitic (additional) forces and they do not contribute on chip formation process. These forces are usually...

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Bibliographic Details
Published in:Procedia CIRP 2019, Vol.82, p.32-36
Main Authors: Sela, A., Ortiz-de-Zarate, G., Arrieta, I., Soriano, D., Aristimuño, P., Medina-Clavijo, B., Arrazola, P.J.
Format: Article
Language:English
Subjects:
alluminium (Al 7475-T7351)
cutting edge radius
Force prediction
optimization
ploughing
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Summary:The ploughing force related with action of edge radius is an important factor which influences flow stress, chip formation or surface integrity. Some fraction of the cutting forces are called parasitic (additional) forces and they do not contribute on chip formation process. These forces are usually assumed to be the cutting force (constant value) for zero feed. However, this effect is related with the edge radius. To improve force modelling prediction, a new mechanistic model to predict cutting force considering edge radius is presented. The model was developed for two cutting speeds and in a wide range of feeds for three edge radii. The model was validated with additional experimental tests, achieving relative errors lower than 3%.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2019.04.066