Recent research in the process of aluminum alloy die castings production, which is nowadays deeply implemented into the rapidly growing

automobile, shipping and aircraft industries, is aimed at increasing the useful qualitative properties of the die casting in order to obtain its

high mechanical properties at acceptable economic cost. Problem of technological factors of high pressure die casting has been a subject of

worldwide research (EU, US, Japan, etc.). The final performance properties of die castings are subjected to a large number of

technological factors. The main technological factors of high pressure die casting are as follows: plunger pressing speed, specific

(increase) pressure, mold temperature as well as alloy temperature. The contribution discusses the impact of the plunger pressing speed

and specific (increase) pressure on the mechanical properties of the casting aluminum alloy.

Machining with tool that have cutting edge radius provides components with high fatigue strength, microhardness of a large surface layer and plastic deformation. Finite element simulations of the cutting process give a better knowledge of the chip generation phenomenon, heat generation in the machining area, stress and temperature field results. This study emphasizes the true importance of the mathematical model that underlies the shape of the tool in the pre-processing steps of finite element analysis. The argument is that its achievement and definition depend on the network difficulty. This research purpose is to perform simulations series of orthogonal machining with different radius and depth of cut. In this way, conclusions on the impact of these variations on the whole cutting process were drawn. The finite element application used is Deform 2D, the Lagrange incremental method and the Johnson-Cook material model. The temperature distribution, stress distribution, von Mises stress distribution, effects on specific tool pressure and wear, and fluctuations in the cutting resistance of the tool tip and C45 workpiece were analyzed.