Ultrasonic assisted dry grinding of 42CrMo4

Tawakoli, Taghi; Azarhoushang, Bahman; Rabiey, Mohammad

doi:10.1007/s00170-008-1646-7

Cited by 96 publications

(45 citation statements)

References 11 publications

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“…The contact (including contacting force, contacting time and area, and lubrication conditions) between the tool and the workpiece will affect surface roughness. 9,36,43,50,53 Effects of abrasive size. Figure 17 illustrates the effects of abrasive size on surface roughness.…”

Section: Effects On Surface Roughnessmentioning

confidence: 99%

“…The CFRP composites were not sharply cut, resulting in the increase in surface roughness. 9,36 In addition, the tool with abrasive concentration of 75 had more cavities between the tool and the workpiece, and the cavities can carry coolant and clean the cutting chips. Therefore, the tool with abrasive concentration of 75 contributed to a smaller surface roughness than that with abrasive concentration of 100.…”

Section: Effects On Surface Roughnessmentioning

confidence: 99%

“…[21][22][23][24][25][26][27][28][29][30][31][32] RUM surface grinding has been used in machining of many materials, including ceramics, silicon, titanium alloys, medium carbon steels, as well as CFRP composites. [33][34][35][36][37][38][39][40][41] However, there are no reported investigations on the effects of tool variables on output variables in RUM surface grinding of CFRP composites. RUM material removal mechanisms consist of ultrasonic machining and traditional grinding process.…”

Section: Introductionmentioning

confidence: 99%

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Surface grinding of carbon fiber–reinforced plastic composites using rotary ultrasonic machining: Effects of tool variables

Wang

Ning

et al. 2016

Advances in Mechanical Engineering

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Carbon fiber-reinforced plastic composites have many superior properties, including low density, high strength-toweight ratio, and good durability, which make them attractive in many industries. However, due to anisotropic properties, high stiffness, and high abrasiveness of carbon fibers in carbon fiber-reinforced plastic, high cutting force, high tool wear, and high surface roughness are always caused in conventional machining processes. This article reports an investigation using rotary ultrasonic machining in surface grinding of carbon fiber-reinforced plastic composites in order to develop an effective and high-quality surface grinding process. In rotary ultrasonic machining surface grinding of carbon fiber-reinforced plastic composites, tool selection is of great importance since tool variables will significantly affect output variables. In this work, the effects of tool variables, including abrasive size, abrasive concentration, number of slots, and tool end geometry, on machining performances, including the cutting force, torque, and surface roughness, are experimentally studied. The results show that lower cutting forces and torque are generated by the tool with higher abrasive size, lower abrasive concentration, and two slots. Lower surface roughness is generated by the tool with smaller abrasive size, smaller abrasive concentration, two slots, and convex end geometry. This investigation will provide guides for tool selections during rotary ultrasonic machining surface grinding of carbon fiber-reinforced plastic composites.

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Section: Effects On Surface Roughnessmentioning

confidence: 99%

Section: Effects On Surface Roughnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Surface grinding of carbon fiber–reinforced plastic composites using rotary ultrasonic machining: Effects of tool variables

Wang

Ning

et al. 2016

Advances in Mechanical Engineering

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“…For this reason, ultrasonic assisted machining, which is a hybrid process that combines the material removal mechanism and ultrasonic vibration, has been considered. This process can be useful for ceramic machining because an additional axial ultrasonic vibration can lead to reduction in cutting temperature and tool wear while maintaining high surface quality, which cannot be obtained from conventional machining [6][7][8][9][10]. Therefore, ultrasonic assisted machining has been applied for machining of the ceramics as an alternative method to traditional machining [9].…”

Section: Introductionmentioning

confidence: 99%

Understanding of Ultrasonic Assisted Machining with Diamond Grinding Tool

Park¹,

Hong²,

Kim³

et al. 2014

MME

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In this work, machining test was carried out in various machining conditions using ultrasonic vibration capable CNC machine. For work material, alumina ceramic (Al 2 O 3 ) was used while for tool material diamond electroplated grinding wheel was used. To evaluate ultrasonic vibration effect, grinding test was performed with and without ultrasonic vibration in same machining condition. In ultrasonic mode, ultrasonic vibration of 20 kHz was generated by HSK 63 ultrasonic actuator. On the other hand, grinding forces were measured by KISTLER dynamometer. And an optimal sampling rate for grinding force measurement was obtained by a signal processing and frequency analysis. The surface roughness of the ceramic was also measured by using stylus type surface roughness instrument and atomic force microscope (AFM). Besides, the scanning electron microscope (SEM) was used for observation of surface integrality.

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“…Kinematics of these processes covers conventional process and assisting factor in the form of oscillatory tool or machining workpiece with a small amplitude and frequency of the ultrasonic, a small amplitude and frequency of the ultrasonic resulting from the reverse piezoelectric effect or magnetostriction. Of particular note is the process of ultrasonic assisted grinding which is applying to the machining of hard, ductile and brittle materials, for example technical ceramic, sintered carbide, quartz [1][2][3][4][5][6][7][8][9], and also different constructing material as steel [10][11][12], nickel alloys [13,14] or titan alloys [4,[15][16][17][18]. There are two main types of such process: ultrasonic assisted grinding with tool oscillation and ultrasonic assisted grinding with workpiece oscillation.…”

Section: Introductionmentioning

confidence: 99%

The grinding wheels for ultrasonic assisted grinding with tool vibration

Porzycki¹,

Wdowik²,

Krok³

2013

ZN PRz Mechanika

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This article presents the grinding tools designed to serve hybrid machining process -ultrasonic wheel vibration assisted grinding. It describes possibilities of using of different abrasives, grinding wheel clamping systems and holders with ultrasonic oscillation inductor. Realization of Ultrasonic Assisted Grinding (UAG) process is possible on machines with special design. Most machine tools are manufactured on the basis of conventional ones and are retrofitted with ultrasonic vibration system. There are two types of tool holders designed for this machine tool: holders for hybrid machining processes (ultrasonic actors) and holders for conventional processes. Each type of tool holder is fixed to the spindle with hollow taper shank. The tools are attached to the ultrasonic actors by screw and positioned on arbor, or by the collets. For the UAG process tools made of various abrasives are applicable. Binding material, the concentration of abrasive grains and their size may differ. It is possible to use diamond or cubic boron nitride tools and also tools made of conventional abrasives. Ultrasonic Assisted Grinding is a novelty in the field of manufacturing techniques. It is necessary to conduct detailed investigations of this process. The factors that have a significant impact on the UAG results for different materials, the oscillatory motion parameters in relation tool or workpiece as well as on the dressing tool should be investigated.

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Ultrasonic assisted dry grinding of 42CrMo4

Cited by 96 publications

References 11 publications

Surface grinding of carbon fiber–reinforced plastic composites using rotary ultrasonic machining: Effects of tool variables

Surface grinding of carbon fiber–reinforced plastic composites using rotary ultrasonic machining: Effects of tool variables

Understanding of Ultrasonic Assisted Machining with Diamond Grinding Tool

The grinding wheels for ultrasonic assisted grinding with tool vibration

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