고능률 가공에서 연삭 온도에 미치는 연삭 조건의 영향

Influence of Operating Condition on Grinding Temperature in High Effect Grinding

  • 김남경 (부산대학교 대학원 정밀기계학과) ;
  • 강대민 (부산공업대학 산업안전공학과) ;
  • 송지복 (부산대학교 정밀기계학과)
  • 발행 : 1990.06.01

초록

In this paper, the influence of the table speed, metal removal rate and grinding fluid on long wheel workpiece contact zone at high effect grinding was investigated by theoretical analyses and measuring the temperature, and discussed by the temperature distribution in grinding surface layer. Main results obtained are as follows, 1) Rega.dless of the table speed, the temperature gap of the workpiece(heat influx) is about 6-8 times as high in dry condition as in wet condition. 2) Good grinding condition can be obtained owing to the effect of grinding fluid without any burning defect under the condition of the metal removal rate(1.0mm$^3$/mm.s) in case of wet grinding. 3) When the depth from the surface layer is about 1.25-1.5mm under the condition of the slow table speed, surface temperature goes up higher as the table speed slows down, because long contact time is laked at the surface layer. 4) In case of the same metal removal rate, the lower the table speed becomes, the higher the surface temperature is, because grinding depth has a far more influence on wheel workpiece contact zone than the table speed.

키워드