Machinability of Alloy Steel and Titanium Alloy under Carbon Dioxide Snow, Micro-lubrication and Hybrid Lubro- Cooling

2019 3rd International Conference on Manufacturing Technologies

工业技术（总论）

Iqbal, A.^1 ; Zaini, J.^1 ; Nauman, M.M.^1

Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jln Tungku Link, Gadong

BE1410, Brunei^1

关键词: CO2-snow;    Machining force;    Performance measure;    Process costs;    Process heat;    Specific cutting energy;    Ti-6 Al-4 V;    Titanium-based alloys;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/521/1/012003/pdf
DOI  :  10.1088/1757-899X/521/1/012003

学科分类：工业工程学

来源: IOP

【 摘 要 】

Efficient removal of process heat in machining of high-strength alloys is critical to product quality, process cost and productivity. The paper experimentally investigates the effects of employing a cryogenic coolant (CO2 snow), micro-lubrication and hybridization of the two on the performance measures, such as tool damage, machining forces and specific cutting energy in cutting of two commonly used high-strength alloys, Ti-6Al-4V and 40NiCrMo6. It was found that although the aforementioned cooling approached improved machinability of both the alloys but the titanium based alloy remained more difficult-to-cut than the alloy steel. Hybrid lubro-cooling and CO2 snow cooling proved to be the most effective options for machining of 40NiCrMo6 and Ti-6Al-4V, respectively.