Influence of Tool Path Strategies and Pocket Geometry on Surface Roughness in Pocket Milling
MZA Yazid1, Munzir Razak2

1M.Z.A. Yazid, Associate Professor, Department of Manufacturing Section, Universiti Kuala Lumpur-Malaysia.
2Munzir Razak, Master of Engineering Technology (Manufacturing), Universiti Kuala Lumpur-Malaysia Italy Design Institute, Kuala Lumpur, Malaysia.

Manuscript received on July 17, 2020. | Revised Manuscript received on July 21, 2020. | Manuscript published on July 30, 2020. | PP: 884-888 | Volume-9 Issue-2, July 2020. | Retrieval Number: F9585038620/2020©BEIESP | DOI: 10.35940/ijrte.F9585.079220
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Abstract: This paper discusses the effect of tool path strategies and pocket geometry to surface roughness due to pocket milling process. The machining processes have been performed on mould steel DF2 using carbide insert end mill as the cutting tool. The cutting parameters for this experiment were kept constant while the variables were cutting tool, path strategies and pocket geometries at three levels each. The effectiveness of different tool path strategy and different pocket geometry is evaluated in terms of measured surface roughness (Ra) of the workpiece. The grade of a pocket is directly proportional with its surface roughness. The lowest surface roughness measurement was produced by pocket geometry B with parallel spiral cutting tool path strategy. 
Keywords: Tool path strategy, pocket geometry, surface roughness, pocket milling.