Relationship between Cutting Heat and Tool Edge Temperature in End Milling of Titanium Alloy

• Published in: Key engineering materials Vol. 749; pp. 15 - 20
• Main Authors: Koseki, Shuho, Yamada, Keiji, Sekiya, Katsuhiko, Tanaka, Ryutaro, Araki, Yosuke, Kojima, Yuto
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 01.08.2017
• Subjects: Cutting force; Cutting tools; Detectors; End milling cutters; Heat; Mathematical analysis; Optical fibers; Spectral sensitivity; Titanium alloys; Titanium base alloys; Workpieces; MQL; End Milling; Coolant; Titanium Alloy; Cutting Temperature; Cutting Heat
• ISSN: 1013-9826; 1662-9795; 1662-9795
• DOI: 10.4028/www.scientific.net/KEM.749.15

In this study, tool edge temperature was measured by a two-color pyrometer with an optional fiber. During one revolution of spindle, the tool edge passes over the fine hole at workpiece after cutting workpiece. An optical fiber inserted into the fine hole transmits infrared ray radiated from tool edge to two detectors with different spectral sensitivities. One peak signal from each detector can be obtained by each spindle revolution. The tool edge temperature can be calculated by taking the ratio of outputs from these two detectors. The relation between cutting heat calculated from cutting force and tool edge temperature was discussed. The tool edge temperature at the same cutting heat could be compared. The wet cutting condition caused lower tool edge temperature than the others at the same cutting heat. MQL and dry showed almost same tool edge temperature. The dispersion of tool edge temperature in wet cutting is wider than that in dry cutting and MQL cutting.