Research on the airflow field characteristics of grinding wheel with large spiral angle groove in grinding arc zone based on FLUENT
In grinding process,the airflow movement characteristics of the grinding arc zone is an important factor affecting the effective injection of grinding fluid.Due to the low heat transfer efficiency in the grinding arc zone of the ordinary grinding wheel,the problems such as high local temperature and grinding burn are easy to occur.Taking the big spiral angle grooved grinding wheel(spiral angle β>85°)as the research object,this study uses the soft-ware FLUENT to carry out numerical simulation of the three-dimensional airflow field in the grinding arc zone.The effects of spiral angle,groove width and groove depth on the airflow characteristics are analyzed.The results show that the larger the width,depth and spiral an-gle of the spiral groove on the grinding wheel surface are,the lower the pressure of the grinding arc zone is,and the stronger the weakening ability of the grinding arc zone intensity is.In addition,the spiral groove has a good conduction effect on the grinding fluid,which is easier to enter the grinding arc zone and form a smooth"heat exchange channel flow field"inside the grinding arc zone,thus significantly improving the heat exchange ability of the grinding arc zone and effectively reducing the grinding temperature during the grinding process.
grindinggrinding wheel with large spiral angle grooveairflow fieldFLUENT
NETL
NSTL
万方数据
