Effects of Tool Length In Milling Operation

Ahmad Fhadli , Salleh (2008) Effects of Tool Length In Milling Operation. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Determination of the tool length effect in the milling operation is important due to its controlling influence on the surface roughness, tool wear and the quality of the machining parts. Numerous attempts have been made to approach the problem with different methods including experimental, analytical and also numerical analysis. The study is focused on determining the effect of the tool length to the surface roughness, tool wear and chip produced. The experiment was done by using the tool steel and Mild Steel 1020 as the workpiece material and also HSS Co 8 cobalt end mill cutter. The experiment was done by using two different tool lengths which is 12/18 and 14/18 from the total length with two different machining parameters i.e. speed and feed rate. The used speed for mild steel workpiece is 1400 mm/min and 900 mm/min and the feed rate is 500 mm/min and 200 mm/min. While for the tool steel workpiece, the used speed probably 850 mm/min and 550 mm/min and the feed rate is 350 mm/min and 150 mm/min. Experimental results indicate the different tool length of cutting tool affected to the surface finish obtained. The lower tool length (12/18) shows better surface roughness than higher tool length (14/18).

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