摘要
A creative conception is proposed to enhance heat transfer in grinding contact zone through jet impinging on the basis of analysis on the mechanism of burn during creep feed grinding, and a new apparatus of slotted & perforated electroplated CBN grinding wheel with radial jet is developed, the effect on heat transfer is studied through the experiment of intermitted creep feed grinding. Experimental results show that the technology of enhancing heat transfer through jet impinging is valid to raise the efficiency of heat transfer in grinding contact zone and it is widely applied to solve the problem in grinding burn for difficult to machine materials.
在对缓进给磨削时烧伤机理的分析基础上,提出了高压射流冲击强化磨削弧区换热的创新构想,研制了带径向射流的CBN 开槽砂轮试验装置,并通过缓进给断续磨削时采用径向射流冲击弧区的磨削实验研究其换热效果。实验结果表明,射流冲击强化换热技术确是提高弧区换热效率的有效方法。
