Thesis
Drilling carbon fiber reinforced plastic and titanium stacks
Washington State University
Master of Science (MS), Washington State University
2010
Handle:
https://hdl.handle.net/2376/101176
Abstract
An increasing trend can be seen in the implementation of advance composite/metal stack materials into airframes due to the high performance of their high strength to weight ratio. Advanced materials such as carbon fiber reinforced plastics (CFRP) and titanium (Ti) are popularly used as stack materials by the aerospace industry. However, CFRP and Ti are both difficult-to-cut materials due to their material properties. The vast differences in their material properties also increase the difficulty of drilling the materials together. Tool wear mechanisms and hole quality are two common concerns when drilling. Common tool wear mechanisms seen in drilling CFRP and titanium are abrasion, attrition, diffusion-dissolution, mechanical fatigue, and thermal fatigue. When drilling CFRP, common defects observed include and are not limited to: delamination, fiber pullout, fuzzing, and matrix melting. In titanium, burr formation is commonly found. Also, titanium hole walls can undergo phase transformation when subject to high temperatures. This study will include analysis of the effect of tool wear on hole quality on the drilling of CFRP/Ti stacks and other possible sources of damage.
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Details
- Title
- Drilling carbon fiber reinforced plastic and titanium stacks
- Creators
- Gabriel Castro
- Contributors
- Dave Kim (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525290101842
- Language
- English
- Resource Type
- Thesis