Experimental and numerical research on the effects of minimum quantity lubrication in thread turning of free-cutting steel AISI 1215

被引：14
作者：
An, Qinglong [1 ]
Liu, Zhiqiang [1 ]
Jiang, Li [1 ]
Chen, Ming [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2015年 / 229卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Minimum quantity lubrication; thread turning; computational fluid dynamics; cutting force; chip formation; machined surface morphology; TOOL WEAR; TEMPERATURE; TI-6AL-4V; OIL;
D O I：
10.1177/0954405414534429
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
As a heavy-load machining method, thread turning always requires high-performance lubrication to achieve high machining accuracy and good machined surface quality. Minimum quantity lubrication with good lubrication effects is used more and more widely in machining process for its eco-friendly and economical benefits. In this article, numerical simulations on minimum quantity lubrication flow field were first conducted by means of computational fluid dynamics, and the effects of minimum quantity lubrication in thread turning of free-cutting steel AISI 1215 were evaluated based on experimental method. The computational fluid dynamics simulation results show that the two vortexes existing in minimum quantity lubrication flow field and the micro oil droplets with high speed above 200 m/s help to enhance heat exchange and lubrication effect by improving the permeation of oil droplets into the cutting zone. The thread turning experiment results also show that the cutting forces with minimum quantity lubrication were reduced significantly, and good machined surface quality was achieved, as compared with dry cutting.
引用
收藏
页码：878 / 885
页数：8
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