scholarly journals Effect of Minimum Quantity Lubrication in Machining Using Different Vegetable Oils

2018 ◽  
Vol 7 (2) ◽  
pp. 70-72
Author(s):  
Satwinder Kaur ◽  
Kulwinder Garg ◽  
Rutash Mittal

In metal industries and researchers are trying to reduce the use of coolant lubricant fluid in metal cutting to give the better performance, health safety, economic benefits and reduction in environmental pollution. Lubrication is necessary for the cutting operations to avoid the surface damages. The MQL gives better result over the conventional flood cooling as it effectively reduce the tool wear through mixture of air and lubricant and also impairs the surface finish of product. The minimization of cutting fluid leads to saving the lubrication cost and also saves machine cleaning time. This study deals with experimental investigation on role of different vegetable oils tool wear and surface finish. Experiments were carried out by plain turning of round bar of SAE 1018. The aerosol based on different vegetable oils was used to evaluate the tool performance and surface finish at different speed combinations. It was observed that Aerosol consist of Canola oil gives less tool wear and comparative surface finish as compared to Sunflower and Soybean oil. SEM results also analyzed in terms of tool wear.

2018 ◽  
Vol 7 (2) ◽  
pp. 67-69
Author(s):  
Sandeep Kumar ◽  
Sukhpal Singh Chatha ◽  
Rutash Mittal

In all machining processes, tool wear is a major problem and it leads to tool failure. In metal industries, the use of cutting fluids affects both employee’s health and environmental pollution. But the use of cutting fluids becomes necessary to keep tight tolerances and to maintain the work-piece surface properties without damages. Researchers are trying to reduce the use of coolant lubricant fluids in metal cutting to obtain environmental safety. So, to minimize the use of cutting fluids new cutting techniques are investigated. Minimal quantity of Lubrication (MQL) is a recent technique introduced in machining to obtain less tool wear and environment safety. The minimum quantity lubrication was provided with a spray of mixture of air and vegetable oil at suitable pressure. MQL machining was performed much superior compared to dry and wet machining due to substantial reduction in tool wear and cutting zone temperature and a better surface finish. MQL provides neat and clean environment avoiding health hazards due to smoke, fumes and gases etc. In this study work-piece of SAE 1018 were prepared to investigate their Surface finish under turning with coated tool bits. Wear of nose radius of tool bits were analyzed by SEM which results in less wear in MQL process as compared to flood cooling.


2020 ◽  
Vol 997 ◽  
pp. 85-92
Author(s):  
Abang Mohammad Nizam Abang Kamaruddin ◽  
Abdullah Yassin ◽  
Shahrol Mohamaddan ◽  
Syaiful Anwar Rajaie ◽  
Muhammad Isyraf Mazlan ◽  
...  

One of the most significant factors in machining process or metal cutting is the cutting tool performance. The rapid wear rate of cutting tools and cutting forces expend due to high cutting temperature is a critical problem to be solved in high-speed machining process, milling. Near-dry machining such as minimum quantity lubrication (MQL) is regarded as one of the solutions to solve this problem. However, the function of MQL in milling process is still uncertain so far which prevents MQL from widely being utilized in this specific machining process. In this paper, the mechanism of cutting tool performance such as tool wear and cutting forces in MQL assisted milling is investigated more comprehensively and the results are compared in three different cutting conditions which is dry cutting, wet cutting (flooding) and MQL. The MQL applicator is constructed from a household grade low-cost 3D printing technique. The chips surface of chips formation in each cutting condition is also observed using Scanning Electron Microscopy (SEM) machine. It is found out that wet cutting (flooding) is the best cutting performance compare to MQL and dry cutting. However, it can also be said that wet cutting and MQL produced almost the same value of tool wear and cutting forces as there is negligible differences in average tool wear and cutting forces between them based on the experiment conducted.


2014 ◽  
Vol 13 (01) ◽  
pp. 55-72 ◽  
Author(s):  
Vikas Pare ◽  
Geeta Agnihotri ◽  
Chimata Murali Krishna

The life of a tool is very significant in metal cutting because production time is a waste whenever a tool is replaced or reset. Because of prolonged use, cutting tools blunt and their effectiveness decreases over time. It is necessary to replace, index or resharpen, and reset the tool after certain time. Tool life is a measure of the length of time a tool will cut effectively. The life of a cutting tool is mostly affected by many factors, such as, the tool wear, material removal rate, microstructure of the material being cut, setup rigidity, and cutting fluid quality. In this paper, up-milling and down-milling are compared with respect to different input parameters mainly cutting speed, feed, and number of teeth, rake angle, and helix angle. A relationship between tool wear and these input parameters is established by using regression analysis and soft computing techniques are applied to minimize the tool wear. Five selected soft computing techniques viz. (i) Genetic Algorithm (GA), (ii) Simulated Annealing (SA), (iii) Hybrid GA with Pattern Search (PS), (iv) Particle Swarm Optimization (PSO), and (v) Threshold Acceptance Algorithm (TAA), are used for optimization of tool wear. The results obtained from each of them are also analyzed. The effect of input parameters on tool wear, the way it is different for up-milling and down-milling is addressed for each case with the help of five selected soft computing techniques. The results indicate that the tool wear is least in case of down-milling when compared to up-milling and hybrid GA gave the best results.


2010 ◽  
Vol 97-101 ◽  
pp. 2058-2061 ◽  
Author(s):  
Hui Wang ◽  
Rong Di Han ◽  
Yang Wang

The machinability of Titanium Alloy Ti6Al4V is poor, the traditional methods to machining is application of cutting fluids with the active additives which cause environmental pollution and health problems. In this paper, the dry electrostatic cooling was applied instead of cutting fluid for the aim of green cutting Ti6Al4V. The ionized device and gas supply system was set up, the effects of dry electrostatic cooling, emulsion oil and dry cutting on tool wear have been examined in turning of Ti6Al4V with carbide tools YG8, the curve between tool flank wear and cutting time was proposed, and the equation between cutting speed and tool life was set up. The results of experiments indicated that application of dry electrostatic cooling reduced the tool wear and increased the tool life. The research results show that clean production was achieved in metal cutting associated with dry electrostatic cooling.


2011 ◽  
Vol 383-390 ◽  
pp. 4576-4584 ◽  
Author(s):  
M.N. Islam ◽  
N. H. Rafai ◽  
B. C. Heng

This paper presents the experimental and analytical results of different cutting fluid supply strategies—dry, minimum quantity lubrication (MQL) and flood turning in terms of the surface finish of turned parts. Subsequently, the influence of independent input parameters on surface finish is investigated in order to optimize their effects. Three techniques—traditional analysis, Pareto ANOVA analysis, and the Taguchi method—are employed. Initially mild steel AISI 1030 has been selected as the work material. The results indicate that the cutting fluid supply strategy has insignificant influence on the surface finish of turned parts. However, the amount of cutting fluid in MQL showed some influence. Further research on two additional materials, aluminum 6061 and alloy steel AISI 4340, reveals that the surface roughness for different work materials is influenced differently by the cutting fluid supply strategies and there is a scope for optimizing the cutting fluid supply strategy in terms of both method and the amount of cutting fluid. This will reduce the amount of cutting fluids used and consequently, their negative impact on the environment, by avoiding unnecessary applications.


2015 ◽  
Vol 799-800 ◽  
pp. 247-250 ◽  
Author(s):  
M.A. Fairuz ◽  
M.J. Nurul Adlina ◽  
Azwan Iskandar Azmi ◽  
M.R.M. Hafiezal ◽  
K.W. Leong

Cutting fluid is a well-known as one of an important element in machining process. However, the consumption of mineral oils as cutting fluid has been raising concern due to worldwide interest in environmental and health matters. The application of vegetable-oil based lubricant is seen can overcome the problem but requires a research study about the machinability. This research paper represents the machinability of using several possible vegetable oils as cutting fluid in term of chip formation and tool wear during drilling operation on stainless steel, AISI 316. In particular, the performance of the vegetable oils; palm, sesame, olive and coconut oils were compared under minimum quantity lubrication (MQL) technique. The result reported that the coconut oil indicates the best machinability in term of highest and uniform chip thickness and least wear on the drill bit under same condition with others. These performances are followed by palm, olive and sesame oil. In additional, the viscosity measurement indicates that coconut oil has the lowest value which can possesses better fluidity and faster cooling capacity than other oils. Overall, coconut oil is recommended as viable alternative lubricants during drilling of stainless steel.


2019 ◽  
Vol 16 (33) ◽  
pp. 21-29
Author(s):  
T. I. M. BOTELHO ◽  
G. S. FIGUEIREDO ◽  
F. M. PRAXEDES ◽  
J. V. U. TEIXEIRA ◽  
E. B. MONTEIRO

The increasing technological advances obtained both in the development of new materials and of machine tools increased the demand for the machining processes and in addition, the use of increased cutting fluids. However, it’s necessary to have characteristics that don’t harm the environment and the operator. In machining processes, cutting fluids, when properly chosen and applied, may reflect benefits during the manufacturing process. This work evaluated the performance of a commercial cutting fluid by comparing it with vegetable oil extracted from carapa guianensis in the abnt 1045 steel turning process. The cutting speed (vc), tool feed (f) and depth (ap) and the influence of the use of both of them on the metal was verified with the following variables: chip analysis, surface finish, cutting temperature and tool wear. It was observed that with the use of andiroba oil, better chip was generated for the safety of the operator, higher cutting temperatures in the piece, higher tool wear and better surface finish with a difference of 23% compared to commercial cutting fluid. Thus, the fluid from andiroba based on the conventional application demonstrated a viable alternative in the turning process of abnt 1045 steel, because it’s biodegradable and reduces petroleum-based cutting fluids.


2019 ◽  
Vol 16 (33) ◽  
pp. 927-935
Author(s):  
T. I. M. BOTELHO ◽  
G. S. FIGUEIREDO ◽  
F. M. PRAXEDES ◽  
J. V. U. TEIXEIRA ◽  
E. B. MONTEIRO

The increasing technological advances obtained both in the development of new materials and of machine tools increased the demand for the machining processes and in addition, the use of increased cutting fluids. However, it’s necessary to have characteristics that don’t harm the environment and the operator. In machining processes, cutting fluids, when properly chosen and applied, may reflect benefits during the manufacturing process. This work evaluated the performance of a commercial cutting fluid by comparing it with vegetable oil extracted from carapa guianensis in the abnt 1045 steel turning process. The cutting speed (vc), tool feed (f) and depth (ap) and the influence of the use of both of them on the metal was verified with the following variables: chip analysis, surface finish, cutting temperature and tool wear. It was observed that with the use of andiroba oil, better chip was generated for the safety of the operator, higher cutting temperatures in the piece, higher tool wear and better surface finish with a difference of 23% compared to commercial cutting fluid. Thus, the fluid from andiroba based on the conventional application demonstrated a viable alternative in the turning process of abnt 1045 steel, because it’s biodegradable and reduces petroleum-based cutting fluids.


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