Feedrates Optimization In Ball End Milling Of Alluminum Alloy

Siti Nurfairuz , Tajuddin (2010) Feedrates Optimization In Ball End Milling Of Alluminum Alloy. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The ball end milling is the most frequent in the machining of mechanical workpiece with complex surface such as those in molds and dies. The ball end mill is designed is that it can handle very high feed rates, meaning it can mill the material very quickly and at the same time it can gives a high productivity. The quality and the efficiency in ball end milling machining is effect by generated scallop height. During this project, the optimization of feedrate in ball end milling process will be study by optimum the quality and improving the machining efficiency for minimize the scallop height after done the isoparametric process. The purpose in this project has been aiming at achieving conflicting objective. This has led to the determination of optimal intervals between successive feedrate to optimize the conflicting objective. The basic concept of feedrate optimization “f = p” machining and the calculation for any given scallop height is used to determine the optimal feedrate. The optimal feedrate can be determined as the feed interval scallop height is equal to the path interval height. Full factorial techniques will be applied in this project to measures the response of every possible combination of factors and factor levels. In this project, the best feedrate is not the main target but would like to see the trend of the result that been effect of the scallop height. Upon what is obtained, if the angle, feed and the stepover increase, the value of scallop height also increase. This means that all factors are directly proportional to the scallop height. The scallop heights that will be produce by ball end milling machining are depends on the way to enhance the efficiency in the ball end milling machining. In the other hand, the quality in ball end milling machining is effect by generated scallop height.

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