Fluidized Bed Hot Abrasive Jet Machining (Fb-Hajm) Of K-60 Alumina Ceramic
ADVANCES IN UNCONVENTIONAL MACHINING AND COMPOSITES, AIMTDR 2018(2020)
摘要
This paper is focused on machining of hard and brittle K-60 alumina ceramic composite material which is widely used as an important insulator in electrical components. The combined effect of hot silicon carbide abrasive particles with compressed air is investigated on technological response parameters after passing the mixture through the fluidized bed abrasive jet machining (FB-AJM) setup. The effect of different machining parameters on material removal rate (MRR), depth of cut (DOC), and surface roughness (Ra) is studied and analyzed. Experiments are conducted according to Box-Behnken design of experiment of response surface methodology to develop quadratic regression models for responses and the model adequacies are confirmed by analysis of variance (ANOVA). The SEM micrograph analysis of the machined composite surface is performed to reveal the plastic deformations. The methodology described here is expected to be highly beneficial to manufacturing industries.
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关键词
Alumina ceramic, FB-HAJM, Response surface, SEM
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