Chip Formation Analysis in Finish Turning of Alloy and PM Hardened Tool Steels Using Coated and Uncoated PBCN Tools

Ociepa, Michał; Jenek, M.; Yagolnitser, O. V.

doi:10.1007/978-3-030-54817-9_115

Cited by 1 publication

(2 citation statements)

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“…Improvement was interpreted mainly by growing of the grain and migration of pores to grain borders of MIM part. Ociepa, Jenek and Yagolnitser [14] analysed the effect of the cutting inserts based on cubical boron nitride with selected cutting parameters of turning technology for the chip formation during finishing process of hardened tool steels. One of selected steels was Vanadis 4 EXTRA SuperClean® (V4).…”

Section: Introductionmentioning

confidence: 99%

“…The most advantageous shape of chip for PM steel was found from feed rate 0.1 to 0,15 mm.rev -1 , independently from the shape of changeable cutting insert. [14] The influence of the cutting tool edge geometry on the resulting roughness of the machined surface after turning tool steels was investigated by Ventura et al [15] as well as the team of authors Zhao T. et al [16]. Their research was focused on AISI 52100 and 4140 steels.…”

Section: Introductionmentioning

confidence: 99%

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Surface Roughness, Topography, Accuracy, Chip Formation Analysis & Investigation of M390 and M398 Steels after Hard Machining

Majerík¹,

Majerský²,

Barényi³

et al. 2023

Manufacturing Technology

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Article deals with processing of intermetallic materials produced by powder metallurgy M390 and M398 Microclean® produced by Böhler. Main interest is the analysis & measurement of their surface roughness and topography after the processing by DNMG and WNMG geometry of cutting inserts with 0.4 and 0.8 mm radius after hard turning at the same process parameters for both materials and all types of cutting inserts. The comparative studies were carried out for the microgeometrical and chip formation research on the machined surfaces and the technological processes were assessed, including chip diagrams. Spectral analysis was used to verify the composition of investigated materials by spectral analysis measuring device. In order to examine the surfaces in detail, in addition to the standard roughness measurement, surface topography was performed by the coherent correlation interferometric microscope. The results of surface roughness as well as topography show higher wear resistance of M398 material compared to M390. This was confirmed indirectly by the fact that it is primarily shown by the higher surface roughness of M398 after machining under the same conditions. These properties are obtained by a higher content of additive elements, respectively of their carbides. Based on the conclusions of these experiments, additional knowledge and recommendations for the processing of these materials were created.

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Section: Introductionmentioning

confidence: 99%