Preiskava vpliva hitrosti rezanja na zdržljivost vložka za rezanje pri rezanju jekla DIN 1.4301

The main aim of this paper is to assess the tool life T = f(vc) during the dry turning of 1.4301 austenitic stainless steel with a CNMG 120408 coated carbide cutting insert. Experimental tests of the selected material were realized in an Aero Turn BT-380 CNC machine tool with a Fanuc 21i TB control system. The effect of the applied cutting parameters on the surface finish, tool wear, tool life and surface roughness were investigated during the realized experiments. The aim of the present paper is to focus scientific research on the impact of the various cutting speeds during the outer longitudinal turning. The presented approach and results will be helpful for understanding the machinability of 1.4301 austenitic stainless steel during dry turning. This paper, together with the achieved results, is a basis to optimize the performance of the machining (i.e., turning) of austenitic stainless steel 1.4301 used for special industrial applications with their dominant functional areas.Glavni namen članka je oceniti preiskovano zdržljivost orodja T = f(vc) pri struženju, brez mazanja avstenitnega nerjavnega jekla 1.4301, s karbidnim rezalnim vložkom CNMG 120408 s prevleko. Preizkusi izbranega materiala so bili izvršeni na CNC stroju Aero Turn BT-380 s Fanuc 21i TB kontrolnim sistemom. Med preizkusi je bil preiskovan vpliv uporabljenih parametrov pri rezanju na kvaliteto površine, obrabo orodja, zdržljivost orodja in hrapavost. Namen članka je usmeriti raziskavo na vpliv različnih uporabljenih vrednosti hitrosti rezanja pri zunanjem vzdolžnem struženju. Vsi predstavljeni približki in rezultati bodo pomagali pri razumevanju obdelovalnosti avstenitnega nerjavnega jekla 1.4301 pri struženju brez mazanja. Dobljeni rezultati so osnova za optimiranje struženja avstenitnega nerjavnega jekla 1.4301, ki se ga, na podlagi posebnih lastnosti, uporablja pri posebnih industrijskih namenih.Web of Science50344543

Experimental Investigation into Wear and Tool Life of Milling Cutter PVD Coated Carbide Inserts While Armox 500 Steel Hard Milling

The goal of the submitted paper is to evaluate the dependence of tool life T = f(vc) in hard rough face milling process of the Armox 500 steel through the PVD coated cemented carbide cutting material with SNHF 1204EN-SR-M1 tool insert geometry. Practical tests of choice material were performed in the milling machine tool with vertical axis. The effect of applied cutting conditions on the surface finish, tool life, wear of cutting tool, such as flank wear and surface structure of applied cutting inserts, was investigated during the performed experiments. The goal of this article is to research the impact of various cutting speeds values during the process of hard face rough milling. Experiments are carried out with an aim to study tool life, surface finish and flank wear prediction on the PVD coated cemented carbide cutting material in hard milling processes. This has been observed through the REM and mathematical method of least squares for this characterization. The presented approach and acquired results will prove themselves helpful in understanding the machinability of Armox 500 steel during the hard milling process