Dry and minimum quantity lubrication high-throughput drilling of compacted graphite iron

Wu, Wenwu; Kuzu, Ali Taner; Stephenson, David A.; Hong, Jun; Bakkal, Mustafa; Shih, Albert J.

doi:10.1080/10910344.2017.1402928

Cited by 9 publications

(5 citation statements)

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“…Next, their surfaces were implanted with nitrogen ions, using the semi-industrial ion implanter with a non-mass-separated ion beam. Nitrogen of 99.9% purity was used as the source of the implanted ions, based on initial studies [ 42 ]. The ion implantation of nitrogen was provided by two kinds of ions, i.e., N 2 + and N + , in the ratio ca.…”

Section: Methodsmentioning

confidence: 99%

Wear Resistance Improvement of Cemented Tungsten Carbide Deep-Hole Drills after Ion Implantation

et al. 2021

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The paper is dedicated to the life prolongation of the tools designed for deep-hole drilling. Among available methods, an ion implantation process was used to improve the durability of tungsten carbide (WC)-Co guide pads. Nitrogen fluencies of 3 × 1017 cm−2, 4 × 1017 cm−2 and 5 × 1017 cm−2 were applied, and scanning electron microscope (SEM) observations, energy dispersive spectroscopy (EDS) analyses, X-ray photoelectron spectroscopy (XPS) and Secondary Ion Mass Spectrometry (SIMS) measurements were performed for both nonimplanted and implanted tools. The durability tests of nonimplanted and the modified tools were performed in industrial conditions. The durability of implanted guide pads was above 2.5 times greater than nonimplanted ones in the best case, presumably due to the presence of a carbon-rich layer and extremely hard tungsten nitrides. The achieved effect may be attributed to the dissociation of tungsten carbide phase and to the lubrication effect. The latter was due to the presence of pure carbon layer with a thickness of a few dozen nanometers. Notably, this layer was formed at a temperature of 200 °C, much smaller than in previously reported research, which makes the findings even more valuable from economic and environmental perspectives.

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Section: Methodsmentioning

confidence: 99%

Wear Resistance Improvement of Cemented Tungsten Carbide Deep-Hole Drills after Ion Implantation

et al. 2021

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“…It was found that the tool life under through-the-drill compressed air was longer than that of dry cutting and MQL. Through observation in a high-speed camera, it Figure 28 Evolution of melt pool shape for first pulse, temperature field and velocity field [144] was found that the chip removal speed under air cooling was faster than dry cutting and MQL, so it can effectively reduce tool wear, which was the main reason for the longer tool life under air cooling [186,187]. But in another study, it was found that the tool life of drilling with MQL was twice as long as that under air-cooling conditions [188].…”

Section: Air Coolingmentioning

confidence: 99%

Recent Advances in Drilling Tool Temperature: A State-of-the-Art Review

Zhu

Sun

Guo

et al. 2022

Chin. J. Mech. Eng.

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Drilling is regarded as the most complex manufacturing process compared with other conventional machining processes. During the drilling process, most of the energy consumed in metal cutting is converted to heat and increases temperature considerably. The resulting thermal phenomena are important since they influence the mode of deformation, the final metallurgical state of the machined surface, and the rate of tool wear. Hence, understanding the temperature characteristics in the drilling process is crucial for enhancing the drill performance and process efficiency. Extensive efforts have been conducted to measure and control the drilling tool temperature successively. However, very few studies have been conducted from a comprehensive perspective to review all the efforts. To address this gap in the literature, a rigorous review concerning the state-of-the-art results and advances in drilling tool temperature is presented in this paper by referring to the wide comparisons among literature analyses. The multiple aspects of drilling tool temperature are precisely detailed and discussed in terms of theoretical analysis and thermal modeling, methods for temperature measuring, the effect of cutting parameters, tool geometries and hole-making methods on temperature and temperature controlling by different cooling methods. In conclusion, several possible future research directions are discussed to offer potential insights for the drilling community and future researchers.

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“…Kuzu et al [18,19] presented a new thermal modeling method to predict the drill temperature of CGI drilling. Wu et al [20] investigated the feasibility of CGI drilling under dry and the MQL condition through the experiment. Da Mota studied the wear mechanisms of tapping CGI and found that the adhesive and abrasive mechanisms are the main modes [21].…”

Section: Introductionmentioning

confidence: 99%

“…The maximum flank wears in five experiments. Reproduced from[20], with permission from Taylor & Francis.…”

mentioning

confidence: 99%

Investigation of Drilling Machinability of Compacted Graphite Iron under Dry and Minimum Quantity Lubrication (MQL)

Kuzu³

et al. 2019

Metals

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Compacted graphite iron (CGI), which is used as a potential material in the auto industry, is a hard-to-machine material for the different minor elements and for the geometry of graphite with grey cast iron. The machinability of CGI in the drilling process was investigated with a 4-mm diameter fine-grain carbide twist drill under four lubrication conditions, dry (no compressed air), dry (with compressed air), MQL 5 ml/h, and MQL 20 mL/h in this paper. The maximum flank wear, types of wear, and cutting loads were studied for identifying the wear mechanism in drilling of CGI. The tool life in the four experiments of CGI drilling is 639 holes, 2969 holes, 2948 holes, and 2685 holes, respectively. The results showed that the main wear mechanism in drilling of CGI is adhesion and abrasion. Carbon, which originates from the graphite of CGI, can improve the lubrication in the drilling process by comparing with MnS in drilling grey cast iron. The thrust force and torque are more than 1000 N and 150 N*cm after 2700 holes in CGI drilling. Drilling of CGI under dry conditions (with compressed air) and MQL 5 ml/h is feasible.

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Dry and minimum quantity lubrication high-throughput drilling of compacted graphite iron

Cited by 9 publications

References 0 publications

Wear Resistance Improvement of Cemented Tungsten Carbide Deep-Hole Drills after Ion Implantation

Wear Resistance Improvement of Cemented Tungsten Carbide Deep-Hole Drills after Ion Implantation

Recent Advances in Drilling Tool Temperature: A State-of-the-Art Review

Investigation of Drilling Machinability of Compacted Graphite Iron under Dry and Minimum Quantity Lubrication (MQL)

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