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International MAAC Symposium 2019
Politeknik Sultan Mizan Zainal Abidin, Terengganu, Malaysia. 25-26 September 2019

[ID PA1275]

A study of tool path strategy on machining time in convex surface

Akmal bin Abdul Rahman , Abdul Muadz bin Abdul Rahim
,2
, 1
1,2 Politeknik Sultan Mizan Zainal Abidin, Dungun, Terengganu
a amar085949@gmail.com, abdulmuadz@gmail.com
b
Abstract. Advancement in machining technology of curved surfaces for various engineering
applications is increasing. Various methodologies and computer tools have been developed by the
manufacturers to improve efficiency of freeform surface machining. Selection of the right sets of cutter
path strategies and appropriate cutting conditions is extremely important in ensuring high productivity
rate. Proper selection of tool path strategies can lead to substantial savings in machining time,
improvement of work piece surface quality and improvement in tool life, thereby leading to overall cost
reduction and higher productivity. The objective of this study is to evaluate the effect of various tool path
strategies of a CAD/CAM system in machining performance such as time machining when ball nose
milling operation on convex surfaces. The evaluation process is focused on six types of cutting pattern
namely follow part, follow periphery, profile, zig, zig zag and zig with contour. The high speed ball end
mill was used in this investigation. The conclusion is that zig zag cutting pattern give the shortest time
machining.

Keywords: Tool path strategies.

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