In milling process with slope of workpiece, the milling process requires more energy from milling machine.The greater the slope of workpiece estimated to be the greater energyrequired by the milling machine. Therefore,the machining vibration that occurs was estimated to be very big. This study aimed to determine influencetheslope of workpiece to machining vibration in milling machine with variations of feeding. This study usedMilling Machine Knuth Universal UFM 2 with vertical milling approach. The slope of workpiece used was 300,450 and 600.The machining process parameters varied was feeding while depth of cut and spindle speed wereconstant. The study results show that the greater the slope of work piece, the greater the machining vibration onthe up milling process and the down milling processes for all slope of work piece. Similarly the influence offeeding to machining vibration in milling process. The study results show that the change of feeding will give apositive impact to machining vibration on the up milling process and the down milling processes. For same theslope of workpiece and feeding the machining vibration on the down milling process is greater than the upmilling process.
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