The location of the maximum temperature on the cutting edges of a drill

Bono, Matthew; Ni, Jun

doi:10.1016/j.ijmachtools.2005.04.020

Cited by 63 publications

(30 citation statements)

References 15 publications

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“…On the analysis of drill temperature as a finite domain, Saxena et al ͓15͔ and Watanabe et al ͓16͔ developed the finite difference method. More recently, finite element method has been applied by Fuh et al ͓17͔ and Bono and Ni ͓18,19͔ for the drill temperature analysis. These studies showed limitations in accurate prediction of drill temperature.…”

Section: Introductionmentioning

confidence: 99%

Tool Temperature in Titanium Drilling

Shih

2007

Journal of Manufacturing Science and Engineering

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The spatial and temporal distribution of tool temperature in drilling of commercially pure titanium is studied using the inverse heat transfer method. The chisel and cutting edges of a spiral point drill are treated as a series of elementary cutting tools. Using the oblique cutting analysis of the measured thrust force and torque, the forces and frictional heat generation on elementary cutting tools are calculated. Temperatures measured by thermocouples embedded on the drill flank face are used as the input for the inverse heat transfer analysis to calculate the heat partition factor between the drill and chip. The temperature distribution of the drill is solved by the finite element method and validated by experimental measurements with good agreement. For titanium drilling, the drill temperature is high. At 24.4 m/min and 73.2 m/min drill peripheral cutting speed, the peak temperature of the drill reaches 480°C and 1060°C, respectively, after 12.7 mm depth of drilling with 0.025 mm feed per cutting tooth. The steady increase of drill temperature versus drilling time is investigated.

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Section: Introductionmentioning

confidence: 99%

Tool Temperature in Titanium Drilling

Shih

2007

Journal of Manufacturing Science and Engineering

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“…The analysis of the heat flux into each ECT follows the study in Ref. [20]. Partial of the heat which generated from the tool-chip friction flows to the tool from the chip-tool contact surface.…”

Section: Analysis Of the Heat Flowmentioning

confidence: 99%

“…At the same time, shear energy causes an increase in the chip temperature, which affects the heat conduction from the tool-chip contact zone. The heat flows into the tool are given by [20] Furthermore, i?J^ is Ff is obtained from a mechanistic force model in Ref. [21].…”

Section: Analysis Of the Heat Flowmentioning

confidence: 99%

Estimation of Milling Tool Temperature Considering Coolant and Wear

Kuo

Meyer²,

Lindle³

et al. 2012

Journal of Manufacturing Science and Engineering

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This paper presents a novel technique to estimate the temperature distribution of a milling tool during machining. In this study, heat generation during the machining process is estimated using cutting forces. We consider the heat to be time-dependent heat flux into the tool. In the proposed model, we discretize each rake face on a mill into several elements; each experiences time-dependent heat flux. Second, we calculate the time-dependent heat flux as several constant heat input starts at different time. Finally, we sum the temperature rise from each heat flux to obtain the overall temperature change. A similar concept is applied on the flank surface, where the flank wear area is modeled as an additional heat generation zone. Experimental results are presented to validate the developed model.

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“…Current research topics deal with the measurement of tool temperatures in the region of the cutting edge, and with cutting temperatures. Drilling, and turning are the main cutting processes examined [15,16,17,18]. New measurement methods such as a fast fiber-optic two-color pyrometer for the temperature measurement of surfaces with varying emissivities [15], and a coating that functions as a thermocouple [19], are increasingly employed.…”

Section: Work Piece 10 % 4 %mentioning

confidence: 99%