Study of ultrasonic vibration–assisted thread turning of Inconel 718 superalloy

He, Yu; Zhongming, Zhou; Zou, Ping; Gao, Xiaogang; Ehmann, Kornel F.

doi:10.1177/1687814019883772

Cited by 22 publications

(9 citation statements)

References 32 publications

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“…This phenomenon was also confirmed by the reports in Refs. [53,54]. Besides Inconel 718, Muhammad et al [55] realized generating shorter chips in the machining of α + β titanium alloy by adopting the ultrasonically assisted turning.…”

Section: New Cutting Methodsmentioning

confidence: 99%

Chip Formation Mechanism of Inconel 718: A Review of Models and Approaches

Liu

Wan

Zhang

et al. 2021

Chin. J. Mech. Eng.

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Inconel 718, a nickel, chrome and iron alloy, has special advantages, such as high-temperature strength, thermal resistance and corrosion resistance, which facilitate wide usage in the aerospace industry, especially in the hot sections of gas turbine engines. However, machining this alloy is correlated closely with the material’s inherent properties such as excellent combination of strength, hardness and toughness, low thermal conductivity and the tendency to adhere to cutting tools. This nickel alloy also contains inclusions of hard abrasive carbide particles that lead to work-hardening of the workpiece material and thus abrasive wear of the cutting tool. That is, the machining of Inconel 718 is always influenced by high mechanical and thermal loads. This article reviews the chip formation mechanism of Inconel 718. One of the main characteristics in machining of Inconel 718 is that it will produce serrated or segmented chips in a wide range of cutting speeds and feeds. Existing studies show that the chip serration or segmentation by shear localization affects the machined surface integrity, and also contributes to the chip’s evacuation and the automation of machining operations. Thus, research conclusion indicates that the serrated or segmented chip phenomenon is desirable in reducing the level of cutting force, and detailed analysis of models and approaches to understand the chip formation mechanism of Inconel 718 is vital for machining this alloy effectively and efficiently. Therefore, this article presents some summaries on the models and approaches on the chip formation in machining of Inconel 718.

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Section: New Cutting Methodsmentioning

confidence: 99%

Chip Formation Mechanism of Inconel 718: A Review of Models and Approaches

Liu

Wan

Zhang

et al. 2021

Chin. J. Mech. Eng.

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“…e method of regression analysis was adopted to fit the experience formula of the axial force and torque. According to the commonly used experience formula [22] for drilling axial force and torque, the fitting of the exponential form was carried out. Firstly, the original form of the drilling axial force and torque equation is set as…”

Section: Analysis Of Drilling Forcementioning

confidence: 99%

Study of Complex Helical Drill with a “S” Type Chisel Edge Tip Orient to Carbon Fiber Reinforced Plastics

Zhou

Zou

et al. 2021

Advances in Materials Science and Engineering

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In this paper, a complex helicoids’ drill tip of “S” type chisel edge grinded with a three-parallel universal CNC grinding machine tool is carefully studied to obtain the optimum drill bit tip geometry parameters. The effects of experimental parameters, such as apex angle, chisel edge incline angle, and structure circumference rear angle, on the quality of the drilling hole and the machining force were studied from the orthogonal experiment compared with the ordinary drill bit. The range of technological parameters are confirmed which should be used during the drilling process of carbon fiber reinforced plastics (CFRP) in order to realize the reduction of cutting defects such as cutting force and spurs. The effect of spindle speed and feed on the drilling behaviour of the experiment using optimum complex helicoids’ drill tip is also analyzed. It is found that the feed has a great influence on the drilling axial force and the spindle speed has little influence on axial force, but great influence on torque.

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“…In the meantime, in the field of machinery manufacturing, the diversified difficult-to-cut materials (DCM) are increasingly widely used and the number of turning processing increases, so that the difficulty of turning processing continues to enhance [8,9]. For the CT process, due to accompanying with the large cutting temperature and cutting force, the difficult chip breaking and chip removal, the severe tool wear and other serious problems in the course of turning, the processing quality becomes poor and the processing efficiency decreases, likewise, the processing cost also aggrandizes [10,11]. The CT technology has great limitations.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of machined surface quality in ultrasonic vibration-assisted turning of 5A06 Al-Mg alloy

Zheng

Fan

et al. 2022

J. Phys.: Conf. Ser.

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The 5A06 Al-Mg alloy is a soft material, and the phenomenon of knife sticking is extremely serious during cutting, likewise, it is easy to generate build-up edges. Therefore, it is difficult to acquire good surface quality in turning. For this purpose, the ultrasonic theory and cutting theory are fully combined in this study, and the machining mechanism of conventional turning (CT) is changed by applying ultrasonic vibration (UV) to the cutting tool, so as to build up the machining results. The turning experiments of 5A06 Al-Mg alloy with or without UV are carried out under different process parameters, and through which the effects of ultrasonic amplitude (UA), feed rate (FR), cutting depth (CD) and cutting speed (CS) on the surface roughness of machined workpiece are investigated and analyzed. The consequences show that the process parameters have a different degree of effect on surface roughness. And there are special process parameters suitable for UV assisted turning (UAT), under which the processing results of UAT is obviously better than that of CT. In addition, it is found that by contrast experiment of surface topography under ideal process parameters built-up edges, surface scratches and other phenomena are not easy to arise in UAT to obtain the better surface topography than CT.

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Study of ultrasonic vibration–assisted thread turning of Inconel 718 superalloy

Cited by 22 publications

References 32 publications

Chip Formation Mechanism of Inconel 718: A Review of Models and Approaches

Chip Formation Mechanism of Inconel 718: A Review of Models and Approaches

Study of Complex Helical Drill with a “S” Type Chisel Edge Tip Orient to Carbon Fiber Reinforced Plastics

Experimental study of machined surface quality in ultrasonic vibration-assisted turning of 5A06 Al-Mg alloy

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