다이아몬드 코어드릴 공정의 구멍가공 특성과 모델링Drilling Characteristics and Modeling of Diamond Core Drilling Processes
- Other Titles
- Drilling Characteristics and Modeling of Diamond Core Drilling Processes
- Authors
- 윤관우; 정성종
- Issue Date
- Aug-2008
- Publisher
- 한국생산제조학회
- Keywords
- Diamond core drill; Tool life; Tool wear; Cutting force; Chipping thickness; Helical drilling; Experimental design; 다이아몬드 코어드릴; 공구수명; 공구마멸; 절삭력; 칩핑두께; 헬리컬 드릴링; 실험계획법
- Citation
- 한국생산제조학회지, v.17, no.4, pp.95 - 103
- Indexed
- KCI
- Journal Title
- 한국생산제조학회지
- Volume
- 17
- Number
- 4
- Start Page
- 95
- End Page
- 103
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/178037
- ISSN
- 2508-5093
- Abstract
- Diamond core drills are applied to drill difficult-to-cut materials. This paper proposes basic understanding of ceramic drilling mechanics and characteristics of main factors affecting tool life, tool wear, cutting force, and chipping thickness. In contrast to conventional drilling, the core drilling process make deep grooves on the workpiece. One difficulty of it is the evacuation of chips from the drilled groove. As the drilling depth increases, an increased amount of chips tend to cluster together and clog the groove. Eventually severe wear develops and diamond grits are separated from the drill body. To relieve the clogging problem and to evacuate chips from the groove easily, the helical drilling process is applied for the core drilling process. To analyze drilling characteristics and derive optimal drilling conditions, tool life, tool wear, cutting force, and chipping thickness are quantified through the monitoring system and the Taguchi method. Mathematical models for the tool life and chipping thickness are derived from the response surface method. Optimal drilling database has been constructed through the experimental models.
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