Analysis On Cutting Tool Performance In Milling Inconel 718 Under Minimum Quantity Lubrication (MQL) And Pulsation Lubrication System (PLS)

Zunaide, Mohamad Norezwan (2019) Analysis On Cutting Tool Performance In Milling Inconel 718 Under Minimum Quantity Lubrication (MQL) And Pulsation Lubrication System (PLS). Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Minimum Quantity Lubrication (MQL) and Pulsation Lubrication System (PLS) are an alternative method to supply the cutting fluid in the formation of mist and pulse respectively. MQL and PLS have proven to increase the machining performance and reduce the machining cost. However, the effectiveness and the working principle of MQL and PLS are still questionable due to limited number of studies currently available. The present study is conducted to investigate the effect of width of cut (WoC) on the cutting tool performance in milling Inconel 718 under MQL and PLS. The WoC used for this experiment is 10%, 20% and 30% while the spindle speed, depth of cut and feed are constant at 2984 rpm, 0.2mm and 447mm/min respectively. The data of cutting tool performance is compared in term of surface roughness and tool wear. The result shows that machining under PLS with 10% of WOC resulted in the lowest tool wear rate with 0.1251mm. For WoC = 20%, the lowest tool wear rate is 0.4032mm for MQL and lastly, for WoC = 30% the lowest tool wear rate recorded is 0.6895mm for PLS. For the average surface roughness, the MQL system recorded the lowest for the WoC = 10%, 20% and 30%. It concluded that applying MQL in machining produced a better surface roughness due to the capability of mist to penetrate deeper at the cutting zone, allowing better cooling during machining. Meanwhile, machining under PLS decreased the tool wear as the pulse flow acts to remove the formation of Build-In-Edge (BUE) during machining

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