Abstract
Machining and more specifically face milling are productive ways of material shaping. Predictive models are very important for effective: quick, easy-to-use and accurate process planning. There are many industrial and scientific researches about modelling the prominent process parameters of machining, notably the machining forces. The main cutting force is one of the most important indicators as it is a primary output parameter of the chip-removing process. The specific cutting force is long time used, traditional type of modelling the main cutting force but still there are missing or difficult-to-find numerical information about the effect of some of the input machining parameters such as cutting speed. In this research, the effects of the theoretical chip-section geometry and the cutting speed were examined through face milling experiments of the S960QL high strength structural steel.
Highlights
Machining is one of the most effectively and most expansively used part shaping method
The effects of the theoretical chip-section geometry and the cutting speed were examined through face milling experiments of the S960QL high strength structural steel
The resultant machining force can be modelled as a vector in a Descartes-type coordinate system which is fixed to the working edge of the tool
Summary
Machining is one of the most effectively and most expansively used part shaping method. The orthogonal machining models presume the existence of a shear plane: these models predict bare shearing process between the sections of the crystal-lattice of the material Such models were created – most notably – by Ernst and Merchant [9] in 1941 and improvements were made by Atkins [3], Lalwani et al [14] and Williams et al [24]. Many of the cutting force models have a similar structure – see Eq (8) Such models are being created to describe the machining processes made with definite cutting edge geometry, most notably turning, milling, drilling and broaching. More precise technologies e.g. micro-machining, new workpiece materials and tools with improved geometry and material properties make some of classical but still traditionally used shaping method’s description to be reviewed
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