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국내 최대 기계·건설 공학연구정보
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  • 시편연마기 Minitech 233~365 series
  • 국내학술지

    260 0
    국내학술지 제목 게시판 내용
    제목(국문) 등속조인트용 외륜의 다단 냉간 단조공정에 관한 실험적 연구
    제목(영문) Experimental Study on Multi-Stage Cold Forging for an Outer Race of a CV Joint
    저자 강범수 (B. S. Kang ,부산대학교 부품소재산학협력연구소 ) ▷공저자네트워크등록하기
    초록
    초록(영문)

    Abstract

    This study deals with a series of experimental investigations on multi-stage cold forging of an outer race used for a constant velocity (CV) joint with six inner ball grooves. The multi-stage cold forging, which consists of forward extrusion, upsetting backward extrusion, and combined sizing-necking including ironing, was used to produce a prototype ofthe outer race ThJ cold forging tools such as forging punches and dies required in this 腿lti-stage cold forging were also designed and fabricated. For the combined sizing-necking, especially, the longitudinally six-segmentallized punches were developed to easily eject from the necked inner groove ofthe outer race with consideration ofthe operating mechanism. Spheroidized SCr420H billet was used in the experimental study. To verify the suitability ofthe proposed process, the obtained parts were obtained from each forging operation, and the geometries were compared with the target dimensions. It was confirmed that the outer race with six inner ball grooves was well forged by adopting the proposed multi-stage cold forging, and the dimensional accuracy ofthe forged outer race matched well with the requirements.

    keyword Key Words : CV Joint, Outer Race, Multi-Stage Cold Forging, Tool Fabrication, Experimental Verification
    저널명 소성·가공 ▷관련저널보기
    VOL 23
    PAGE 0221
    발표년도 2014
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