We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Experimental studies on the performance of different structure tools in drilling CFRP/Al alloy stacks.
- Authors
Zhang, Lin; Liu, Zi; Tian, Wei; Liao, Wenhe
- Abstract
Contrast experiments, in which CFRP and 7075 aluminum alloy stacked materials were drilled with different structure drills respectively, were carried out to assess how process parameters and tools affected hole accuracy, roughness, and burr height as well as cutting force. The results showed that comprehensive cutting ability of the new structure CVD diamond-coated drill was significantly higher than that of the traditional twist drill when drilling CFRP/Al stacks without coolant. The best process parameters were at the speed of 4000 r/min, the feed rate of 0.04 mm/r, with which the aperture accuracy could reach H8, composite shrinkage could be controlled in less than 5 μm and hole wall roughness also meet industry needs (CFRP: Ra ≤ 3.2 μm, Al: Ra ≤ 1.6 μm). Matrix cracking and larger rolled-back burrs would be apparent with the tool wear. On the premise of ensuring the quality and accuracy, the cutting tool could be used for 400 holes at least.
- Subjects
CARBON fiber-reinforced plastics; STRUCTURAL engineering; MACHINE tools; ALUMINUM alloys; MECHANICAL behavior of materials
- Publication
International Journal of Advanced Manufacturing Technology, 2015, Vol 81, Issue 1-4, p241
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-015-6955-z