Experimental studies on drilling tool load and machining quality of C/SiC composites in rotary ultrasonic machining

Ding, Kai; Fu, Yucan; Su, Honghua; Chen, Yan; Yu, Xizhai; Ding, Guozhi

doi:10.1016/j.jmatprotec.2014.06.015

Cited by 164 publications

(53 citation statements)

References 8 publications

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“…for a beam of length with attached mass at one end, the case of an ultrasonic horn with the attached tool, the total energies of the system horn tool, mentioned in (12), are given by…”

Section: Mathematical Modelmentioning

confidence: 99%

See 1 more Smart Citation

A New Approach on Vibrating Horns Design

Guiman

Roşca

2017

Shock and Vibration

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An optimization method of the vibrating horns is presented considering the smallest action principle and the attached cutting tool mass. The model is based on Webster's wave propagation equation and as an objective function the minimization of the volume in structural equilibrium conditions was considered. The considered input parameters were working frequency, maximum crosssectional area, magnification coefficient, and the attached mass. At the end of the study, a new shape function of the horn's cross section is obtained. The particularity of the new obtained shape is given by the nodal point position that is the same with the position of the maximum cross-sectional area. The obtained horn was analyzed from the modal point of view using theoretical and experimental methods. As theoretical methods, both the state-space method and the finite element method were used. An experimental setup for frequency response function determination was developed using a random input signal. The verification of the magnitude value was done considering a harmonic steady-state signal. The recorded values were compared with the predicted values. The numerical simulations and tests support the validity of the assumptions used in the horns optimization design.

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“…for a beam of length with attached mass at one end, the case of an ultrasonic horn with the attached tool, the total energies of the system horn tool, mentioned in (12), are given by…”

Section: Mathematical Modelmentioning

confidence: 99%

“…These devices can be themselves tools or can be used with a tool attached at the small end, and thus they are tied with high-power applications of ultrasound, like cutting [1][2][3], drilling [4][5][6], turning [7], welding [8,9], and so forth, or for machining different materials as carbon fiber reinforced composites [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A New Approach on Vibrating Horns Design

Guiman

Roşca

2017

Shock and Vibration

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“…For example, the continuous carbon fibre reinforced SiC matrix composites (C/SiC) have been extensively used in the structures of modern aviation vehicles, including rocket nozzles, aeronautic jet engines, heat shields and aircraft braking materials, to name a few. C/SiC composites show superior physical properties such as high temperature resistance, high damage tolerance, low density, desirable corrosion resistance, high wear resistance, and plausible frictional characteristics [1,2]. In a working environment with high temperature exceeding 1000°C or higher, the fracture strength, fracture toughness, residual stresses, hardness, thermal and oxidation resistance play an important role in the mechanical integrity of C/ SiC composites.…”

Section: Introductionmentioning

confidence: 99%

High temperature digital image correlation evaluation of in-situ failure mechanism: An experimental framework with application to C/SiC composites

Mao

Chen

et al. 2016

Materials Science and Engineering: A

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a b s t r a c tA high temperature digital image correlation (DIC) technique was developed, which was applied to study the in-situ fracture behavior of a carbon fibre reinforced silicon carbide matrix (C/SiC) composite. The displacement distribution and cracking information of the C/SiC single edge notched beam specimen can be monitored real-time, thanks to the improved DIC technique with special speckle patterns that can reach up to 1600°C. The results showed that the brittle to ductile transition temperature of C/SiC composites is about 1300°C. The new failure mechanisms of C/SiC composites at different experimental temperatures were further verified with the aid of X-ray diffraction and scanning electron microscope (SEM) techniques. In addition, the relationships between the fracture toughness, first-crack strength of C/ SiC composites and environmental temperature were deduced. The proposed experimental method and testing results may shed some light on assessing the reliability and durability of C/SiC composites at high temperatures.

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“…Various manufacturing technologies are used to fabricate micro-holes. Micro punching [5], micromechanical drilling [6], micro ultrasonic machining [7], micro electro discharge machining [8], and micro-powder injection molding [9] processes are used to manufacture high quality micro holes. Laser beam drilling is one of the advanced manufacturing processes which can drill almost all ranges of engineering materials including diamond, metallic alloys, polymer and so on [10,11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Laser Power on the Quality of Drilled Micro Hole Using Cu50Zr50 Amorphous Alloys Foils

et al. 2014

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Abstract:The rapid growth of the micro-electro-mechanical systems (MEMS) is being driven by the rapid development of the micro manufacturing processes. Laser beam machining is one of the micro manufacturing processes which can shape almost all ranges of engineering materials. In this study, the effect of laser power on the quality of drilled micro holes using Cu50Zr50 amorphous alloys foils is experimentally investigated. It indicates that both entrance and exit circularities diameters increase with laser power. The circularities of the holes at the entry and the exit are in the range of 0.893 to 0.997. The taper of drilled holes increases quickly to a stable value with the increase of laser power from 60 to 110 W, then decreases quickly when the laser power becomes larger than 170 W. The micro holes with a diameter of 400 to 1200 μm are manufactured successfully by laser drilling processes. The formation mechanism of the quality of the laser drilled hole is analyzed based on the laser beam and the properties of amorphous alloys foils.

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Experimental studies on drilling tool load and machining quality of C/SiC composites in rotary ultrasonic machining

Cited by 164 publications

References 8 publications

A New Approach on Vibrating Horns Design

A New Approach on Vibrating Horns Design

High temperature digital image correlation evaluation of in-situ failure mechanism: An experimental framework with application to C/SiC composites

Effect of Laser Power on the Quality of Drilled Micro Hole Using Cu50Zr50 Amorphous Alloys Foils

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