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- Title
Effect of cutting fluid application on surface roughness in hard milling of 4340-alloyed steel.
- Authors
Hassanpour, Hamed; Rasti, Amir; Sadeghi, Mohammad Hosein; Saadatbakhsh, Mohammad Hosein; Omiddodman, Ahmad Reza
- Abstract
AISI4340 hardened steel has vast functionality in industries. Hard machining of this steel has several benefits such as, higher productivity, lower production cost and improved workpiece properties. In machining operation, ultimate surface roughness is the most important characteristic of machined surface and plays an important role in workpiece life. One of the effective factors on surface integrity is cutting fluid used in machining operation which, in spite of its positive effects has health and environmental problems. As a result, using minimum quantity lubrication is considered as an alternative method. In the present study, relations between milling parameters and final surface quality in milling of AISI4340 hardened steel, in the presence of lubrication systems including; dry, wet and minimum quantity lubrication have been investigated. Cutting speed, feed rate, axial and radial depth of cut have been considered as main parameters of milling operation. Totally, 90 experiments have been done using response surface method to analyze the effects of process parameters on surface roughness. Results revealed that feed rate and cutting speed have the most influence on surface roughness. Also, higher values of cutting speed and lower values of feed rate are necessary to reduce surface roughness. In addition, compared to other lubrication methods, minimum quantity lubrication has the best performance in surface quality, especially in high cutting speed and depth of cut.
- Subjects
STEEL research; MACHINING; SURFACES (Technology); LUBRICATION &; lubricants research; SURFACE roughness measurement
- Publication
Modares Mechanical Engineering, 2015, Vol 14, Issue 14, p50
- ISSN
1027-5940
- Publication type
Article