Open AccessModification of coolant fluid controller for minimum quantity lubrication (mql) methods with use of arduino uno-based control system
Author(s) -
Zulkifli Amin,
Meiki Eru Putra,
Ismet Hari Mulyadi,
Ardi Desfiandra
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/694/1/012024
Subject(s) - coolant , pressurizer , lubrication , cutting fluid , materials science , control valves , mechanical engineering , machining , engineering
Coolant is important in the machining process. Excessive and uncontrolled use of coolant can cause high production costs, affect the human health and the waste of coolant polluting the environment. One method that has been used to reduce the amount of coolant is the limiting coolant distribution method or commonly called MQL (Minimum Quantity Lubrication). The MQL equipment which is available in the market has a relatively expensive, so a prototype of a coolant control system of MQL method has been designed and made. However, the prototype made not meet the desired specifications then a modified control system is added to the prototype. Prototype performance is compared before and after the control system being added. The duration of fluid drop and the output capacity of the fluid sprayed are measured to test the function of the device. It is found that with the addition of modified control systems, the performance of MQL cooling regulator is improved, but it is applied mostly for fluids which have viscosity ranging about viscosity of oil and cooking oil. For cooking oil fluid, the MQL tool performance increase as the capacity of the fluid decreases due to the control system being applied at all case of air valve openings for the diameter orifice of 2 mm. It is also found that at the aperture of the air valve of ¼, with a 10 second delay time and an orifice diameter of 2 mm, the capacity coolant sprayed is reduced from 107.348 ml/hr to 89.609 ml/hr when the modified control system is added. For the Bromus fluid, the capacity of the fluid decreases as the control system being applied. The MQL tool performance increase only occur in the smallest valve opening of ¼ that is about 9 to 26%. However, the capacity of Bromus types of fluid increase as the air valve openings increase.