• Title/Summary/Keyword: 항공기 엔진 압축기 케이스

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Study on Deformation Analysis of Holes during Drilling of Aircraft Engine Compressor Cases (항공기 엔진 압축기 케이스의 드릴링 시 홀의 변형 해석에 관한 연구)

  • Park, Ki-Beom;Cho, Young-Tae;Jung, Yoon-Gyo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.17 no.3
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    • pp.65-70
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    • 2018
  • M152, used for aircraft engine compressor cases, causes many problems in the cutting process due to its high hardness and high toughness. Characterized by a concave cylindrical center, aircraft engine compressor cases are thin but have multiple side holes to connect with internal parts. Thus, deformation occurs despite the jig sustaining the inside. The object of this study was to lessen the deformation arising from drilling by improving the drilling jig for aircraft engine compressor cases. To this end, an aircraft engine compressor case modeled with SolidWorks was analyzed with ANSYS under real conditions. Then, to secure reliability, the analyzed deformation was compared with the actual deformation. Based on the results, the effects of the improved drilling jig for aircraft engine compressor cases were verified.

Automatic Generation of CAM Model for Machining Holes for Jet Engine Compressor Case Based on Feature Recognition (제트엔진 압축기 케이스의 구멍 가공을 위한 특징형상 인식 기반의 CAM 모델 자동생성)

  • Kim, Byung Chul;Song, Ilhwan
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.39 no.3
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    • pp.337-345
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    • 2015
  • High machining technology is needed for manufacturing jet engines for use in aircrafts. To reduce errors in the jet engine machining process, the machining companies of aircraft engines have introduced the CAM (computer-aided manufacturing) technology. However, to create a CAM model, the operator must manually conduct machining operations based on a CAD (computer-aided design) model, which can take several days or weeks. To solve this problem, this study proposes a method for automatically generating a CAM model for machining holes in the parts, using a CAD model. In this method, the features of the hole are recognized from the CAD model and translated into machining operations to be used with the CATIA program. Additionally, a prototype system was implemented and the proposed method was experimentally verified.

A Fast Generation Method of CAM Model for Machining of Jet Engines Using Shape Search (형상 검색을 이용한 제트엔진 절삭가공을 위한 빠른 CAM 모델 생성 방법)

  • Kim, Byung Chul;Song, Ilhwan;Shin, Suchul
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.40 no.3
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    • pp.327-336
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    • 2016
  • Manufacturers of aircraft engines have introduced computer-aided manufacturing (CAM) software to operate and control computerized numerical control (CNC) machine tools. However, the generation of a CAM model is a time consuming and error-prone task since machining procedure and operational details are manually defined. For the automatic generation of a CAM model, feature recognition techniques have been widely studied. However, their recognition coverage is limited so that complex shapes such as a jet engine cannot be fully developed. This study presents a novel approach to quickly generate a CAM model from a CAD model using shape search techniques. Once an operator sets a machining operation as a reference operation, the same shapes as the shapes referenced by the operation are searched. The reference operation is copied to the positions of the searched shapes. The proposed method was verified through experiments with a jet engine compressor case.