A Study On Machining Strategies For Pocketing Profiles Outward Helical, Offset On Part One Way And Offset On Part Zigzag

Nur Hizzuanna, Hazizan (2015) A Study On Machining Strategies For Pocketing Profiles Outward Helical, Offset On Part One Way And Offset On Part Zigzag. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) A Study On Machining Strategies For Pocketing Profiles Outward Helical, Offset On Part One Way And Offset On Part Zigzag.pdf - Submitted Version Download (475kB)

Abstract

A pocket machining can be defined as any machining that removes all material located inside a boundary between two horizontal planes. Circular and rectangular shapes were the pockets investigated. In this research, machining strategies is defined as the path that a cutting tool traverse in order to remove material as created a shape. An experimental investigated was conducted to explore surface finish machining strategies of outward helical, offset on part one way and offset on part zigzag in producing pocket shape. Otherwise, this research is conducted to study the effect of roundness accuracy in applying different machining strategies of outward helical, offset on part one way and offset on part zigzag and to make recommend theory for best machining strategy based on the obtained result in machining pocket profiles. In this research, cutting parameters were remained constant for all parts. This included the length of the tool reach, feed rate, spindle speed and depth of cut. CNC Milling 3-Axis machine and Aluminium 6063 were used in performing the physical machining. Methods to test the machined parts in this research were Surface Roughness Testing by using Mitutoyo Surface Roughness Test Machine and Roundness Measurement using of Coordinate Measurement Machine (CMM) Zhafir Contura 2. The results reveal that offset on part one way was the best for surface roughness analysis and offset on part zigzag shown better accuracy when roundness measurement was carried out. Implications of the results and future research directions are also presented.

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