Machinability Experiments and Economical Considerations of Dry Machining : 2nd Report, End Milling and Drilling of Medium Carbon and Alloy Steels

This paper deals with the elimination of water-based cutting fluid based on machinability tests and economical considerations when plain medium carbon steels and an alloy steel are machined with a coated carbide end mill or a carbide drill. In end milling, no remarkable difference between dry and we...

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Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 67; no. 661; pp. 3034 - 3039
Main Authors OHSHIMA, Ikuya, MAEKAWA, Katsuhiro, KOGAMI, Hisashi
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.09.2001
Subjects
Carbon Steel
Cutting Fluid
Drilling
Dry Machining
End Milling
Machinability
Production Cost
Tool Life
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Summary:This paper deals with the elimination of water-based cutting fluid based on machinability tests and economical considerations when plain medium carbon steels and an alloy steel are machined with a coated carbide end mill or a carbide drill. In end milling, no remarkable difference between dry and wet machining is recognized in terms of chip disposability, machining accuracy, cutting force, tool life and production cost. Besides, dry machining yields a low production cost at low cutting speeds of less than 90 m/min for S 45 C steel and 20 m/min for SKD 61. In drilling, dry machining is not as good as wet machining with respect to machinability, but the cost analysis shows that dry machining is preferable at low cutting feeds of less than 200 mm/min for S 50 C steel. From an environmental point of view we should take a positive attitude to introduce dry machining as far as its advantages on machinability and economics are recognized.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.67.3034