PT Journal
AU Majerik, J
   Majersky, J
   Chochlikova, H
   Barenyi, I
   Escherova, J
   Kubasakova, M
TI Machining of M390 Microclean(R) and M398 Mircoclean(R) PM Steels - the Comparison of Cutting Forces and Surface Roughness
SO Manufacturing Technology Journal
PY 2023
BP 853
EP 860
VL 23
IS 6
DI 10.21062/mft.2023.096
DE PM Steel; Cutting force; Cutting insert; Dynamometer; Surface roughness
AB Article deals with comparison of cutting forces and surface roughness between materials produced by powder metallurgy M390 and M398 Microclean(R) from producer, company Bohler. Main interest is the analysis & comparison of the cutting forces and surface roughness after the processing by cutting in-serts with DNMG and WNMG geometry, radius 0.4 and 0.8 mm, after hard turning at the same pro-cess parameters for both materials and all types of cutting inserts. The comparative studies were car-ried out for cutting forces and surface roughness with the aiming to observe the difference between "old generation" M390 and "new generation" M398 PM Steel for future processing in production. The corelation between the cutting forces and surface roughness was investigated with resulting the M398 is necessary to process by higher cutting forces which are linked with higher surface roughness than at M390. It is in relation with higher contain of additive elements and carbides formed by them, even that the material is in delivered condition - soft annealed [1], [2]. These results helped to fulfil the knowledge about both materials in the row of experiments which are provided to increase material properties against abrasion and wear.
ER