http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Le Gong,Rachele Bertolini,Stefania Bruschi,Andrea Ghiotti,Ning He 한국정밀공학회 2022 International Journal of Precision Engineering and Vol.9 No.1
This novel work focuses on turning Inconel 718 alloy using different sustainable lubricating-cooling techniques. Cryogenic machining (Cryo), minimum quantity lubrication (MQL) and nanofluid MQL (NFMQL) were applied and their performances in terms of obtainable surface integrity evaluated in comparison with dry cutting (dry) and wet machining (wet). The surface integrity was analyzed from the aspect of surface roughness, surface morphology and defects, microhardness, microstructure, and chip morphology. The experimental results revealed that Cryo offered overall better performances when compared to dry, wet, MQL and NFMQL strategies: lower surface roughness, fewer surface defects and lower chip compression ratio were observed. Furthermore, increasing the cutting speed led to higher surface roughness and incidence of surface defects for all the applied strategies, except for Cryo.