Experimental investigations of vibration and acoustics signals in milling process using kapok oil as cutting fluid

Abstract

Vegetable oils are found as the feasible alternative for conventional minerals oils. There has been many environmental and health issues which are spotted with the use of conventional cutting fluids. There has been a great demand for developing new environmentally friendly vegetable based cutting fluids to reduce these harmful effects. In this present study, vegetable based kapok oil is used as a cutting fluid during milling to study its consequences over other conventional oils. The process parameters such as spindle speed, depth of cut and feed rate were optimized with respect to the flank wear (Vb) and surface roughness (Ra) respectively with the use of central composite design in response surface methodology (RSM). Further an attempt has been made to monitor the tool condition by measuring the cutting force, vibration and sound pressure simultaneously. Three different tool conditions such as dull, fresh and working were analyzed and their consequences were also reported. Also, the performance of the kapok oil is compared with the palm oil and mineral oil (SAE 20W 40). The feed rate has the major contribution for surface roughness and flank wear. It is found that the cutting force (F), sound pressure (p) and vibration (V) increases with the tool wear.

A review of cooling and lubrication techniques for machining difficult-to-cut material.

“…The higher molecular weight and boiling point of vegetable oils reduce their vaporization process [42]. For all those benefiting features of vegetable oils, many of them are used as cutting fluids in cutting process like kapok oil [43], olive oil [44], and sunflower oil [45].…”

Dynamic performance of newly developed environmentally friendly greases containing polysaccharide gums in rolling bearing

“…Vegetable oils have shown the nest prospects as alternative base oil. This is due to their high biodegradability, renewability, minimal toxicity, wide availability, high ash-point, high viscosity index, good lubricity, and promising vibrationdamping characteristics [22][23][24][25]. Among thickeners, modi ed cellulose [26][27][28][29] and organoclays [29][30][31] have been the two extensively tried and successful options.…”

An investigation on machinability of AISI D2 steel during hard milling with multi-resolution analysis of vibration

“…It was identified that acoustic emission varies linearly with the cutting velocity. Shankar et al [12] carried out an experimental study on influence of different cutting fluids in the acoustic pressure during milling of mild steel. It was revealed that acoustic pressure is maximum while using Kapok oil compared to Mineral oil or Palm oil.…”