In this paper a new experimental approach was developed to evaluate twist drill temperature in drilling process of metal matrix composites. Drill temperatures were measured by inserting k-thermocouples, which were welded in different zones of the tool grooves, and by using an infrared pyrometer. A radiofrequency transmission system was realised in order to transmit signals obtained by the thermocouples to a data acquisition system. The workpiece material was a composite with an aluminium matrix reinforced with silicon carbide powders. The experimental tests were carried out in order to assess the influence of drilling parameters on tool temperature and cutting force.
Assessment of Twist Drill Temperature in Metal Matrix Composites Drilling
DI ILIO, Antoniomaria;PAOLETTI, ALFONSO
2010-01-01
Abstract
In this paper a new experimental approach was developed to evaluate twist drill temperature in drilling process of metal matrix composites. Drill temperatures were measured by inserting k-thermocouples, which were welded in different zones of the tool grooves, and by using an infrared pyrometer. A radiofrequency transmission system was realised in order to transmit signals obtained by the thermocouples to a data acquisition system. The workpiece material was a composite with an aluminium matrix reinforced with silicon carbide powders. The experimental tests were carried out in order to assess the influence of drilling parameters on tool temperature and cutting force.Pubblicazioni consigliate
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