期刊
MATERIALS
卷 12, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/ma12030477
关键词
cryogenic machining; cutting tool; cutting geometry; titanium
类别
资金
- UK Engineering and Physical Sciences Research Council [EP/K503654/1]
- Innovate UK [KTP010108]
- EPSRC [EP/K503654/1] Funding Source: UKRI
Titanium alloys are extensively used in aerospace and medical industries. About 15% of modern civil aircrafts are made from titanium alloys. Ti-6Al-4V, the most used titanium alloy, is widely considered a difficult-to-machine material due to short tool life, poor surface integrity, and low productivity during machining. Cryogenic machining using liquid nitrogen (LN2) has shown promising advantages in increasing tool life and material removal rate whilst improving surface integrity. However, to date, there is no study on cutting tool geometry and its performance relationship in cryogenic machining. This paper presents the first investigation on various cutting tool geometries for cryogenic end milling of Ti-6Al-4V alloy. The investigations revealed that a 14 degrees rake angle and a 10 degrees primary clearance angle are the most suitable geometries for cryogenic machining. The effect of cutting speed on tool life was also studied. The analysis indicated that 110 m/min cutting speed yields the longest tool life of 91 min whilst allowing for up to 83% increased productivity when machining Ti-6Al-4V. Overall the research shows significant impact in machining performance of Ti-6Al-4V with much higher material removal rate.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据