scholarly journals Energy Efficiency Assessment of Cryogenic Minimum Quantity Lubrication Cooling for Milling Operations

Procedia CIRP ◽  
2021 ◽  
Vol 98 ◽  
pp. 523-528
Author(s):  
Daniel Gross ◽  
Nico Hanenkamp
Keyword(s):  
Energy Efficiency ◽  
Minimum Quantity Lubrication ◽  
Minimum Quantity ◽  
Efficiency Assessment ◽  
Milling Operations ◽  
Cryogenic Minimum Quantity Lubrication

Application of tri-hybridized carbonaceous nanocutting fluids in an end milling operation by the minimum quantity lubrication technique

2021 ◽  
pp. 135065012110438
Author(s):  
S. Vignesh ◽  
U. Mohammed Iqbal
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
End Milling ◽  
Hexagonal Boron Nitride ◽  
Coconut Oil ◽  
Minimum Quantity Lubrication ◽  
Work Piece ◽  
Cutting Fluids ◽  
Minimum Quantity ◽  
Milling Operations

This paper is concentrated on the exploration of carbonaceous nanocutting fluids with the concept of tri-hybridization with improved lubricative and cooling properties by using multi-walled carbon nanotubes, hexagonal boron nitride , and graphene nanoparticles with neat cold-pressed coconut oil in a fixed volumetric proportion. The rheological properties of the nanofluids were studied to assess their performance in real-time end milling operations using an AA7075 work piece on a CNC lathe machine under a minimum quantity lubrication environment. At the outset, the carbonaceous nanofluids gave good performance when compared to conventional cutting fluids. Furthermore, the surfaces of the tribo-pairs and the chips formed were analyzed using a profilometer and high-end microscopes. The results obtained from the experiments confirm that the tri-hybridized carbonaceous nanolubricant has reduced the cutting force, tool wear, and surface roughness when correlated to monotype nanofluids. The scanning electron microscope images of the surface and tool were studied and it was found that the surface quality was maintained while end milling with tri-hybridized carbonaceous nanofluid. Improvement of ∼17%, 20% and 25% in cutting forces, surface roughness and tool wear was found in tri-hybrid fluid when compared to other fluids. Thus, the present work indicates that the addition of carbon-based nanoparticles with coconut oil has offered better performance and is found to be a credible alternative to existing conventional cutting fluids.

Effect of Cryogenic Minimum Quantity Lubrication (CMQL) on Cutting Temperature and Tool Wear in High-Speed End Milling of Titanium Alloys

2010 ◽  
Vol 34-35 ◽  
pp. 1816-1821 ◽  
Author(s):  
Yu Su ◽  
Ning He ◽  
Liang Li
Keyword(s):  
Tool Wear ◽  
Titanium Alloys ◽  
High Speed ◽  
End Milling ◽  
Cutting Temperature ◽  
Cutting Speed ◽  
Minimum Quantity Lubrication ◽  
Minimum Quantity ◽  
High Cutting Speed ◽  
Cryogenic Minimum Quantity Lubrication

Cryogenic minimum quantity lubrication (CMQL) is a kind of green cooling/lubrication technique, which consists of the application of a small amount of lubricant (6-100 ml/h), delivered in a refrigerated compressed gas stream to the cutting zone. This paper experimentally investigates the effect of CMQL on cutting temperature and tool wear in high-speed end milling of titanium alloys. Comparative experiments were conducted under different cooling/lubrication conditions, i.e. dry milling, refrigerated air cutting, and CMQL. The refrigerated gas equipment was manufactured based on composite refrigeration method to provide the refrigerated air. The experimental results show that application of CMQL resulted in drastic reduction in cutting temperature and tool wear especially when machining titanium alloys at a high cutting speed.

Effect of cryogenic oils-on-water compared with cryogenic minimum quantity lubrication in finishing turning of 17-4PH stainless steel

2020 ◽  
Vol 24 (6) ◽  
pp. 1016-1036
Author(s):  
Zhiwei Lai ◽  
Chengyong Wang ◽  
Lijuan Zheng ◽  
Haisheng Lin ◽  
Yaohui Yuan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Minimum Quantity Lubrication ◽  
Minimum Quantity ◽  
Cryogenic Minimum Quantity Lubrication

scholarly journals Investigation of the influence of lubricating oils on the turning of metallic materials with cryogenic minimum quantity lubrication

Procedia CIRP ◽  
2019 ◽  
Vol 80 ◽  
pp. 95-100 ◽  
Author(s):  
Daniel Gross ◽  
Matthias Bigelmaier ◽  
Trixi Meier ◽  
Sven Amon ◽  
Nicolai Ostrowicki ◽  
...  
Keyword(s):  
Minimum Quantity Lubrication ◽  
Metallic Materials ◽  
Lubricating Oils ◽  
Minimum Quantity ◽  
Cryogenic Minimum Quantity Lubrication
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