Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10673355 | CIRP Annals - Manufacturing Technology | 2015 | 4 Pages |
Abstract
This paper presents a hybrid process chain for efficiently machining hard silicon nitride. The process includes a laser treatment phase to weaken the material, followed by diamond grinding. Optimized laser parameters have been identified to control the generation of a network of cracks that weakens the volume of material to be ground. Comparison of data between traditional and hybrid process chain shows a reduction in grinding force of about thirty per cent in the latter case. A finite element model has been developed for the analysis of thermal stresses generated by laser exposure and the prediction of crack formation.
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Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
Alessandro Fortunato, Giacomo Guerrini, Shreyes N. Melkote, Alessandro A.G. Bruzzone,