TY - JOUR
T1 - Comparison of sustainable cooling/lubrication strategies for drilling of wire arc additively manufactured Inconel 625
AU - Khanna, Navneet
AU - Patel, Deep
AU - Raval, Parth
AU - Airao, Jay
AU - Badheka, Vishvesh
AU - Rahman Rashid, Rizwan Abdul
N1 - Publisher Copyright:
© 2024 The Authors
PY - 2024/12
Y1 - 2024/12
N2 - Machining Inconel presents significant challenges due to the material's high strength, hardness, and heat resistance. These properties often result in accelerated tool wear, modest surface finish, and increased energy consumption during machining processes. Despite its widespread use in industries, the machining of Inconel alloys remains a persistent bottleneck in manufacturing operations. In this study, we focus on drilling rather than milling of Inconel 625, a commonly used nickel-based superalloy, due to its specific relevance in various industrial applications. Drilling operations are critical in numerous contexts, including the fabrication of aerospace components, where precision, hole quality, and efficiency are paramount. Therefore, this study aims to improve machinability of wire arc additively manufactured Inconel 625 by fabricating it with two different travel speeds, 175 mm/min and 185 mm/min as well as by drilling the fabricated Inconel 625 using recently developed sustainable lubrication/cooling strategies, i.e. electrostatic minimum quantity lubrication (EMQL) and cryogenic LCO2. The results show that the sample built with 185 mm/min produces less tool wear, surface roughness, thrust force and power consumption. The use of LCO2 results in approximately 35 % less tool wear, 27 % less surface roughness, 15 % less thrust force, and 4 % lower power consumption compared to EMQL for the sample built at 185 mm/min.
AB - Machining Inconel presents significant challenges due to the material's high strength, hardness, and heat resistance. These properties often result in accelerated tool wear, modest surface finish, and increased energy consumption during machining processes. Despite its widespread use in industries, the machining of Inconel alloys remains a persistent bottleneck in manufacturing operations. In this study, we focus on drilling rather than milling of Inconel 625, a commonly used nickel-based superalloy, due to its specific relevance in various industrial applications. Drilling operations are critical in numerous contexts, including the fabrication of aerospace components, where precision, hole quality, and efficiency are paramount. Therefore, this study aims to improve machinability of wire arc additively manufactured Inconel 625 by fabricating it with two different travel speeds, 175 mm/min and 185 mm/min as well as by drilling the fabricated Inconel 625 using recently developed sustainable lubrication/cooling strategies, i.e. electrostatic minimum quantity lubrication (EMQL) and cryogenic LCO2. The results show that the sample built with 185 mm/min produces less tool wear, surface roughness, thrust force and power consumption. The use of LCO2 results in approximately 35 % less tool wear, 27 % less surface roughness, 15 % less thrust force, and 4 % lower power consumption compared to EMQL for the sample built at 185 mm/min.
KW - Drilling
KW - EMQL
KW - Inconel 625
KW - LCO
KW - Tool performance
KW - Wire arc additive manufacturing
UR - http://www.scopus.com/inward/record.url?scp=85201183170&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2024.110068
DO - 10.1016/j.triboint.2024.110068
M3 - Journal article
AN - SCOPUS:85201183170
SN - 0301-679X
VL - 200
JO - Tribology International
JF - Tribology International
M1 - 110068
ER -