Manufacturing companies define the qualities of thermal removing process based on the dimension and physical appearance of the cutting material surface. Therefore, the roughness of the surface area of the cutting material and the rate of the material being removed during the manual plasma arc cutting process was importantly considered. Plasma arc cutter Selco Genesis 90 was used to cut the specimens made from Standard AISI 1017 Steel manually based on the selected parameters setting. Two different thicknesses of specimens with 3mm and 6mm were used. The material removal rate (MRR) was measured by determining the weight of the specimens before and after the cutting process. The surface roughness (SR) analysis was conducted to determine the average roughness (Ra) value. Taguchi method was utilized as an experimental layout to obtain MRR and Ra values. The results reveal that for the case of manual plasma arc cutting machining, the SR values are inversely proportional to the MRR values. The quality of the surface roughness depends on the dross peak that occurred during the cutting process.
Petroleum based wax are used in industries to produce prototype models in machining, educational and training purposes by many types of industries. However the paraffin type of wax is very expensive. Hence an effort was taken to produce palm oil based wax in the way to substitute paraffin wax to an affordable material that will give great savings in cost and time in prototype manufacturing. Palm oil unique composition makes it versatile in any applications such as food manufacturing, health products, cosmetics as well as pharmaceutical industries. Its technical properties make it as preferable as base components in any manufacturing products. With the sustainable ability to recycle the used prototype parts, industries may be able to produce low cost product verification since the palm oil based wax can be reformed to its original structure properties after heating and melting process.
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