A study of drilling uni-directional carbon/epoxy composites

作者：Gao H^*; Bao Y J; Feng Z M

来源：International Journal of Abrasive Technology, 2011, 4(1): 1-13.

DOI：10.1504/IJAT.2011.039000

• C/E composite
• Damage
• Fibre orientation
• Fly milling
• Formation mechanism
• Grinding
• Thrust force

A study of drilling uni-directional carbon/epoxy (C/E) composite, a difficult-to-machine material, has been carried out to reveal the formation mechanism of drilling-induced surface damages. A theoretical analysis is reported, which shows that the drilling damages mostly occur in the areas where the fibre orientation angle is in the range of 0°-90°, especially in the vicinity of 6°. To minimise the damages, drilling tools with electroplated diamond abrasives are used to drill the C/E composite. Experimental results with these drills show that the thrust force decreased by 30%-50% while drilling damages at the exit side are also significantly reduced when comparing to drilling with traditional carbide twist drills. ? 2011 Inderscience Enterprises Ltd.

• 出版日期2011