HIGH FEED MILLING OF PRETREATED TOOL STEEL 55NiCrMoV7

Cristian-Eusebiu POPESCU, Cristina SPOREA (KAIZLER), Aurel TULCAN, Adrian BUT

Abstract


When milling the vertical walls, shoulder milling is generally necessary. In the case of deep walls, using a long-edge cutter tends to vibrate. In addition to the low machining speeds, the machining accuracy is negatively affected. The main objective of this work is to experimentally analyze the machining of vertical walls in the case of pretreated tool steel 55 NiCrMoV7 using a high-feed milling cutter with indexable inserts. The experimental analysis aims to study the influence of cutting conditions (cutting speed, axial and radial cutting depths, feed per tooth) on tool life (cutting tool wear) in the case of machining vertical walls. Based on the resulting experimental data, the conclusion is that cutting speed has a predominant direct influence on tool life, not being influenced by variations in feed rate or feed per tooth.


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References


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