BTA 드릴의 가공정밀도를 위한 가공방법개선에 관한 연구

• 영문명: A Study on Drilling Process of Fuel Common Rail for BTA Drill
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 김승기(Seung-Ki Kim)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제17권 4호, 203~210쪽, 전체 8쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2012.12.30

영문 초록

The BTA drilling has not shown much progress in its technology since its development by Beisner in 1942, which is currently used for deep hole drilling among several drilling technologies, but its cutting ability is improving by the development and adoption of cemented carbide tip and coating of tool surface, also the research is recently progressing to apply ceramics on the guide pad. The machining by BTA drill performs unique distribution of cutting power and chip discharging by high-pressure coolant supply based on the self-guiding method of the pad. As its characteristic is superior to other drilling methods in deep hole drilling of big length/diameter ratio as well, its applications are now being expanded for hole drilling of big molds, machining of tube sheet, which is a core part of heat exchanger, machining of various parts for automobile, and so on, which is equipped with modified general machine or dedicated equipment for the production of various kinds of parts. However, the biggest problem currently appearing in the deep hole drilling of big length/diameter ratio is the degree of tolerance, such as precision of diameter (bending, hole enlargement), concentricity, parallelism, cylindricity, surface roughness, and so on. The causes of such troubles are assembly error of BTA drill machining system, unbalance of cutting power due to the shapes of work pieces and tools, etc., which cannot satisfy the quality level requested.

목차

Ⅰ. 서 론

Ⅱ. 실험장치 및 방법

Ⅲ. 실험결과 및 고찰

Ⅳ. 결론

키워드

Boring Trepanning Association Drill (BTA드릴) Deep Hole Drill (심공드릴) Cylindricity (원통도) Surface Roughness(표면 거칠기)