Development of a step drill for minimization of delamination and uncut in drilling carbon fiber reinforced plastics (CFRP)
| Autor: | Sung Lim Ko, Byeong-chan Kwon, Eun Soo Cheon, Ngoc Dai Duong Mai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Drill Mechanical Engineering Delamination Drilling Thrust 02 engineering and technology Industrial and Manufacturing Engineering Computer Science Applications Core (optical fiber) Rake angle 020901 industrial engineering & automation Machining Control and Systems Engineering Fiber Composite material Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 106:1291-1301 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-019-04423-5 |
| Popis: | A step drill is developed to minimize delamination and uncut fiber in machining carbon fiber reinforced plastics (CFRP), which consists of two parts, a core part and a step part. The core part is designed to minimize the thrust force by controlling core diameter. The step part is designed to remove the delamination generated by core part without 2nd delamination, which consists of step angle. The effect of feed rate and spindle speed on the performance of drilling also investigated. To remove the uncut fibers properly, the higher rake angle of step part is applied. By measurement of thrust force, it is found that the delamination can be reduce when smaller thrust force is generated. As a result, a step drill is designed for less generation of delamination and uncut fiber for drilling T700 3K CFRP. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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