EFFECT OF FINISHING MACHINING ON THIN-WALLED NICKEL ALLOY COMPONENTS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00388935" target="_blank" >RIV/68407700:21220/25:00388935 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
EFFECT OF FINISHING MACHINING ON THIN-WALLED NICKEL ALLOY COMPONENTS
Original language description
The machining of thin-walled components made from Inconel 718 presents considerable challenges due to the alloy’s poor machinability, high thermal strength, and low structural stiffness. This study investigates the influence of cutting speed and cooling strategy under dry, flood, and minimum quantity lubrication (MQL) conditions during side milling of thin-walled specimens. Using a full factorial design, the effects on cutting forces, surface roughness, wall deformation, and tool wear were evaluated. Results showed that cutting forces generally decreased with increasing cutting speed, although an anomalously low force was observed for dry machining at 100 m/min, likely caused by elastic deflection of the wall reducing tool engagement. Surface quality was highest for flood cooling at moderate speeds, while dry machining produced unstable built-up edge formation and higher roughness. Wall deformation was most pronounced for dry machining at low speeds, whereas MQL maintained low flatness deviations and minimal thickness taper at moderate speeds. Tool wear was highest for dry machining and lowest for flood cooling, with MQL providing intermediate performance. The findings define a narrow process window that balances dimensional accuracy, surface integrity, and tool life for thin-walled Inconel 718 milling, providing guidance for coolant-limited aerospace manufacturing.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Technological Forum2025
ISBN
978-80-87583-57-9
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
104-109
Publisher name
Ing. Jan Kudláček
Place of publication
Jaroměř
Event location
Herbertov
Event date
Jun 24, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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