Characteristic on the Heating Deformation of Sleeve by Heating Method

열처리공법에 따른 Sleeve의 열처리 변형 특성

  • Youn, Il-Joong (School of Mechanical & Aerospace Engineering, ReCAPT, Gyeongsang National University) ;
  • Lyu, Sung-Ki (School of Mechanical & Aerospace Engineering, ReCAPT, Gyeongsang National University) ;
  • An, Chang-Woo (Daedong gear LTD) ;
  • Ahn, In-Hyo (Korea Polytechnic VII Colleges, Hanbaek Changwon Campus)
  • 윤일중 (경상대학교 기계항공공학부.항공기부품기술연구소) ;
  • 류성기 (경상대학교 기계항공공학부.항공기부품기술연구소) ;
  • 안창우 (대동기어주식회사) ;
  • 안인효 (한국폴리텍 VII대학 한백창원캠퍼스)
  • Published : 2006.06.30


Nowadays, out of other transmission parts, the sleeve is getting more and more important part for exact and smooth shifting from gear ratio change whenever drivers are needed. To exact and smooth shifting when drivers are needed, all the parts connected with gear shifting should be machined exactly and having dimensions designers are intended. Especially, in case of the sleeve that the most important functional part to shift from gear ratio change that drivers are intended, it needs high precision grade and quality in both sides runout and outer dia runout as well as inner spline small dia & large dia. Because it's assembled with the synchro hub spline and shifted directly with the mating cone. So, it should be applied the hear treatment(hereinafter referred to H.T.M.T) to prevent the friction and percussion loss from shifting with mating cone. At this time, the deformation problems are raised from almost H.T.M.T. process and it makes the inferior part.


carburizing method;setting point;gear and spline;surface hardness


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