The contribution of microstructure and friction in broaching Ferrite–Pearlite steels

Courbon, C.; Arrieta, I.; Cabanettes, Frédéric; Rech, J.; Arrazola, P.J.

doi:10.1016/j.cirp.2020.04.023

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…The analysis of chips formed during machining can be used to detect defects in steel parts. For this purpose, various research methods are used: the detection of material defects based on measurements of force and acoustic emission during processing [127][128][129][130][131][132][133][134][135][136][137][138][139][140][141]; a metallographic analysis; a surface roughness analysis; and various types of computer modeling [132][133][134][135][136][137][138][139][140][141][142] and machine learning, including artificial intelligence [143][144][145][146][147][148][149][150][151][152].…”

Section: Literature Survey: State-of-the-artmentioning

confidence: 99%

Hydrogen Cooling of Turbo Aggregates and the Problem of Rotor Shafts Materials Degradation Evaluation

Balitskii,

Syrotyuk,

Havrilyuk

et al. 2023

Energies

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Changes in the properties of 38KhN3MFA steel, from which the rotor shaft is made, were investigated by comparing the hardness of the shaft surface and hydrogen concentration in the chips and analyzing changes in the morphology of the chips under the influence of various factors. The microstructures obtained from the surface of the rotor shaft samples are presented, and histograms reflecting the parameters of the structural components are constructed. An abbreviated diagram of the “life cycle” of the turbine rotor shaft is given. It was found that, during long-term operation (up to 250 thousand hours), the hardness of the rotor shaft surface decreases from 290 HB to 250 HB. It was recorded that, in the microstructure of the shaft during 250 thousand hours of operation, the amount of cementite decreased from 87% to 62%, and the proportion of free ferrite increased from 5% to 20%. The average values of ferrite microhardness decreased from 1.9 GPa to 1.5 GPa. An increase in the content of alloying elements in carbides was recorded: Cr and V—by 1.15–1.6 times; and Mo—by 2.2–2.8 times. With the help of the developed program (using computer vision methods), changes in their microrelief were detected to study photos of chips.

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Section: Literature Survey: State-of-the-artmentioning

confidence: 99%

Hydrogen Cooling of Turbo Aggregates and the Problem of Rotor Shafts Materials Degradation Evaluation

Balitskii,

Syrotyuk,

Havrilyuk

et al. 2023

Energies

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“…Z kolei wzrost wartości siły F c jest dostrzegalny, ale maksymalnie w zakresie 20%. W symulacji numerycznej ważnym zagadnieniem pozostaje ustalenie warunków tarcia [3,10]. W opisanych symulacjach 3D-FEM stosowano następujący model dla pozornego współczynnika tarcia (przyjęto następujące wartości trzech parametrów:…”

Section: Przykłady Wyników Modelowania Analitycznego I Symulacji Procesu Przeciąganiaunclassified

“…W pracy [10] przedstawiono szczegółową analizę wpływu tarcia i mikrostruktury stali o strukturze perlityczno-ferrytycznej na przebieg procesu przeciagania. W tym celu przeprowadzono specjalne testy tribologiczne na tribometrze typu pin-on-disk (opisane w numerach 2 i 4 Mechanika z 2019 r. [11,12]) z zastosowaniem trzpieni bez powłoki i z powłoką TiN oraz dodatkowo ze smarowaniem.…”

Section: Przykłady Wyników Modelowania Analitycznego I Symulacji Procesu Przeciąganiaunclassified

Development in broaching technology. Part III. Directions of experimental investigations of broaching process and broach design

Grzesik¹

2021

Mechanik

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The paper structured into three parts outlines the present state of the broaching technology. The first part (Mechanik 5-6, 2021) highlighted possible process variants for internal and external operations and designs of broaching machines as well as CNC control systems and other advanced automatization forms. The second part (Mechanik 8-9, 2021) was devoted to the progressive broaching methods such as rotary broaching, hard broaching and MQL application. The third part discusses some important directions of experimental investigations carrying out for more efficient and reliable broaching processes.

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State of the art of research studies on machining processes by French research network Manufacturing’21

Wagner

2023

Int J Adv Manuf Technol

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The contribution of microstructure and friction in broaching Ferrite–Pearlite steels

Cited by 4 publications

References 19 publications

Hydrogen Cooling of Turbo Aggregates and the Problem of Rotor Shafts Materials Degradation Evaluation

Hydrogen Cooling of Turbo Aggregates and the Problem of Rotor Shafts Materials Degradation Evaluation

Development in broaching technology. Part III. Directions of experimental investigations of broaching process and broach design

State of the art of research studies on machining processes by French research network Manufacturing’21

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