Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Foundation Study on the Selection of Bearing Lubrication Conditions in High-speed Spindle

초고속 스핀들의 윤활조건 선정을 위한 기초 연구

  • 안성환 (창원대학교 기계설계공학과 대학원) ;
  • 이춘만 (창원대학교 기계설계공학과)
  • Received : 2008.12.29
  • Accepted : 2009.02.27
  • Published : 2009.03.30
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Abstract

Recently, a high speed cutting is essential requirement to satisfy latest demand of high precision product and machining of hard materials. However heat generation by high speed rotation causes many problems. The machining error and shortening spindle lifetime by thermal stress is typical example. Generation of heat is mostly caused by sliding at the rotor and bearing. For minimization of heat generation at bearing, decision of the condition of proper lubrication is necessary. The thermal study about 40,000rpm spindle by changing the condition of oil-air lubrication method is carried out in this paper. The results of this paper can be used effectively in the decision of oil-air lubrication condition of other types of spindle for machine tools.

Keywords

References

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