Effects of femtosecond laser surface modified WC and NbC based inserts during the face-milling of automotive Grey Cast Iron (a-GCI)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00379904" target="_blank" >RIV/68407700:21220/25:00379904 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ijrmhm.2025.107068" target="_blank" >https://doi.org/10.1016/j.ijrmhm.2025.107068</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijrmhm.2025.107068" target="_blank" >10.1016/j.ijrmhm.2025.107068</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of femtosecond laser surface modified WC and NbC based inserts during the face-milling of automotive Grey Cast Iron (a-GCI)

Popis výsledku v původním jazyce

Rapid pulsed electric current sintering (PECS), TiC, TiC7N3 and Mo additions, and femtosecond (fs) laser surface modification (LSM) were used to improve the machining of automotive grey cast iron (a-GCI) using WC and NbC based cemented carbides cutting inserts. Additions of Mo and TiC as well as the use of PECS refined the grain sizes of NbC-12Ni based cermet from ~4.6 μm to ~1 μm, increasing the hardness (by ~3 GPa) and wear resistance. Shark skin (S-LSM) and pyramidal (P-LSM) patterns were introduced to improve the wear and mechanical impact resistance of the cutting inserts. Face milling of a-GCI was performed at 200 m/min cutting speed (Vc), 1.0 mm depth of cut (ap), and 0.1 mm/tooth feed rate (f). The insert cutting-edge wear and damage were evaluated after every pass using optical microscopy and high angular annular dark field scanning transmission electron microscopy (HAADF-STEM). The machining performance of the cutting inserts was assessed by cutting forces, wear, and cutting insert tool life. The PECS produced NbC-10TiC-12[Ni/Mo] (wt%) P-LSM cutting insert had the lowest flank wear rate (FWR) (1.44 μm/min) after 20 min of machining. In addition, both the S-LSM and P-LSM patterns improved the cutting insert tool life of PECS produced NbC-12[Ni/Mo] (wt%) blank (B) cutting insert by ~300 % and ~ 900 %. Resulting in FWRs reductions of the respective insert from 21.04 μm/min after 2 min of machining to 5.97 μm/min and 1.94 μm/min after 8 min and 20 min. In general, LSM improved the NbC based cutting inserts' tool life and reduced the FWRs.

Název v anglickém jazyce

Effects of femtosecond laser surface modified WC and NbC based inserts during the face-milling of automotive Grey Cast Iron (a-GCI)

Popis výsledku anglicky

Rapid pulsed electric current sintering (PECS), TiC, TiC7N3 and Mo additions, and femtosecond (fs) laser surface modification (LSM) were used to improve the machining of automotive grey cast iron (a-GCI) using WC and NbC based cemented carbides cutting inserts. Additions of Mo and TiC as well as the use of PECS refined the grain sizes of NbC-12Ni based cermet from ~4.6 μm to ~1 μm, increasing the hardness (by ~3 GPa) and wear resistance. Shark skin (S-LSM) and pyramidal (P-LSM) patterns were introduced to improve the wear and mechanical impact resistance of the cutting inserts. Face milling of a-GCI was performed at 200 m/min cutting speed (Vc), 1.0 mm depth of cut (ap), and 0.1 mm/tooth feed rate (f). The insert cutting-edge wear and damage were evaluated after every pass using optical microscopy and high angular annular dark field scanning transmission electron microscopy (HAADF-STEM). The machining performance of the cutting inserts was assessed by cutting forces, wear, and cutting insert tool life. The PECS produced NbC-10TiC-12[Ni/Mo] (wt%) P-LSM cutting insert had the lowest flank wear rate (FWR) (1.44 μm/min) after 20 min of machining. In addition, both the S-LSM and P-LSM patterns improved the cutting insert tool life of PECS produced NbC-12[Ni/Mo] (wt%) blank (B) cutting insert by ~300 % and ~ 900 %. Resulting in FWRs reductions of the respective insert from 21.04 μm/min after 2 min of machining to 5.97 μm/min and 1.94 μm/min after 8 min and 20 min. In general, LSM improved the NbC based cutting inserts' tool life and reduced the FWRs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Refractory Metals and Hard Materials

ISSN

0263-4368

e-ISSN

2213-3917

Svazek periodika

128

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

001408725300001

EID výsledku v databázi Scopus

2-s2.0-85215442232