UNSPECIFIED (1998) Tool performance and chip control when machining Ti6Al4V and Inconel 901 using high pressure coolant supply. MACHINING SCIENCE AND TECHNOLOGY, 2 (1). pp. 1-12. ISSN 1091-0344

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Abstract

Single point continuous turning tests were carried out on Ti6Al4V and Inconel 901 using various geometries of straight grade (K20) cemented carbide inserts using a high pressure coolant jet directed at the tip of the tool where the chip is formed. Trials were also carried out using a conventional coolant supply for comparison. The test results show that improved tool life can be achieved when machining the titanium-base alloy under the high pressure coolant jet while shorter tool life was obtained when machining the nickel-base alloy. The use of high pressure coolant supply during machining generally maintains constant cutting forces and reduces the chip-tool contact length, thus increasing stresses at the tool edge. This behavior tends to accelerate notching that is predominant when machining the Inconel 901 alloy, resulting in shorter tool life. This effect is not obvious when machining Ti6Al4V where the tools failed mainly due to excessive flank wear. Effective chip control was achieved when machining both materials because of the cyclic fragmentation mechanism of the newly generated chip.

Item Type:	Journal Article
Subjects:	T Technology > TS Manufactures T Technology > TJ Mechanical engineering and machinery T Technology > TA Engineering (General). Civil engineering (General)
Journal or Publication Title:	MACHINING SCIENCE AND TECHNOLOGY
Publisher:	MARCEL DEKKER INC
ISSN:	1091-0344
Date:	1998
Volume:	2
Number:	1
Number of Pages:	12
Page Range:	pp. 1-12
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/14862

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