The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
Shin-ichi Matsuoka - One of the best experts on this subject based on the ideXlab platform.
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Ultrasonic Welding of Thin-Alumina/Aluminum Using Inserts
Journal of The Society of Materials Science Japan, 2020Co-Authors: Tomoaki Ishikuro, Shin-ichi MatsuokaAbstract:This paper describes an experimental study of Ultrasonic Welding of thin ceramics and metals using inserts. Ultrasonic Welding has made it possible to join various thick ceramics, such as Al2O3 and ZrO2, to aluminum at room temperature, quickly and easily compared to other Welding methods. However, for thin ceramics, which are brittle, it is expected that Welding is difficult to perform without causing damage. In this experiment, anodizing aluminum oxide film was used as thin alumina ceramics. Actually, aluminum was not able to be directly welded to an anodic oxide film without breakage. Vapor deposition of aluminum alloys (target material : A2017, A6061, A7075) on the film was contributed as an effective insert layer for Welding at low pressure and a short duration without causing damage to the anodic oxide film. For example, the Ultrasonic Welding of thin Al2O3/Al was accomplished under the conditions of Ultrasonic horn top amplitude of 32 μm, Welding pressure of 5 MPa and required duration of 0.1s.
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Ultrasonic Welding of Thin Alumina and Aluminum Using Inserts
Jsme International Journal Series A-solid Mechanics and Material Engineering, 2005Co-Authors: Tomoaki Ishikuro, Shin-ichi MatsuokaAbstract:This paper describes an experimental study of Ultrasonic Welding of thin ceramics and metals using inserts. Ultrasonic Welding has enable the joining of various thick ceramics, such as Al2O3 and ZrO2, to aluminum at room temperature quickly and easily as compared to other Welding methods. However, for thin ceramics, which are brittle, Welding is difficult to perform without causing damage. In this study, aluminum anodized oxide with different anodizing time was used as thin alumina ceramic. Vapor deposition of aluminum alloys was used to create an effective binder layer for Welding at a low pressure and within a short duration in order to prevent damage to the anodic oxide film formed with a short anodizing time. For example, Ultrasonic Welding of thin Al2O3/Al was accomplished under the following conditions: Ultrasonic horn tip amplitude of 30µm, Welding pressure of 5MPa, and required duration of 0.1s. However, since the vapor deposition film tends to exfoliate as observed in the anodic oxide film formed with a long anodizing time, Welding was difficult.
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Ultrasonic Welding of Thin Alumina and Aluminum Using Inserts
JSME International Journal Series A, 2005Co-Authors: Tomoaki Ishikuro, Shin-ichi MatsuokaAbstract:This paper describes an experimental study of Ultrasonic Welding of thin ceramics and metals using inserts. Ultrasonic Welding has enable the joining of various thick ceramics, such as Al2O3 and ZrO2, to aluminum at room temperature quickly and easily as compared to other Welding methods. However, for thin ceramics, which are brittle, Welding is difficult to perform without causing damage. In this study, aluminum anodized oxide with different anodizing time was used as thin alumina ceramic. Vapor deposition of aluminum alloys was used to create an effective binder layer for Welding at a low pressure and within a short duration in order to prevent damage to the anodic oxide film formed with a short anodizing time. For example, Ultrasonic Welding of thin Al2O3/ Al was accomplished under the following conditions: Ultrasonic horn tip amplitude of 30 μm, Welding pressure of 5 MPa, and required duration of 0.1 s. However, since the vapor deposition film tends to exfoliate as observed in the anodic oxide film formed with a long anodizing time, Welding was difficult. Copyright © 2006 by The Japan Society of Mechanical Engineers.
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Ultrasonic Welding of ceramics/metals using inserts
Journal of Materials Processing Technology, 1998Co-Authors: Shin-ichi MatsuokaAbstract:Abstract This paper gives a description of an experimental study of the Ultrasonic Welding of ceramics and metals using inserts. Ultrasonic Welding has made it possible to weld various ceramics such as Al2O3, SiC, Si3N4, AlN, to metals at room temperature, quickly and easily compared to other Welding methods. For example, the Ultrasonic Welding of Si3N4/Al/Cu can be accomplished under the conditions of: amplitude of Ultrasonic horn top, 23 μm; Welding pressure, 20 MPa; and required duration, 1 s. The Ultrasonic-Welding technique can be carried out in many different ways, such as the direct Welding of ceramics/metals, Welding with a metal coating on the ceramics surface by vacuum deposition and Welding with a metal insert. The insert material and the vaporized film used for auxiliary purposes play the role of binders to facilitate Welding, but little difference in Welding strength was found between the welds with the metal insert and the vaporized film. Since Ultrasonic vibration cleans the contact surface, there is no need to carry out surface treatment prior to Welding.
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Ultrasonic Welding of ceramics/metals using inserts
Journal of Materials Processing Technology, 1998Co-Authors: Shin-ichi MatsuokaAbstract:This paper gives a description of an experimental study of the Ultrasonic Welding of ceramics and metals using inserts. Ultrasonic Welding has made it possible to weld various ceramics such as Al2O3, SiC, Si3N4, AlN, to metals at room temperature, quickly and easily compared to other Welding methods. For example, the Ultrasonic Welding of Si3N4/Al/Cu can be accomplished under the conditions of: amplitude of Ultrasonic horn top, 23 μm; Welding pressure, 20 MPa; and required duration, 1 s. The Ultrasonic-Welding technique can be carried out in many different ways, such as the direct Welding of ceramics/metals, Welding with a metal coating on the ceramics surface by vacuum deposition and Welding with a metal insert. The insert material and the vaporized film used for auxiliary purposes play the role of binders to facilitate Welding, but little difference in Welding strength was found between the welds with the metal insert and the vaporized film. Since Ultrasonic vibration cleans the contact surface, there is no need to carry out surface treatment prior to Welding. © 1998 Elsevier Science S.A.
Elaheh Ghassemieh - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and FE analysis of Ultrasonic Welding of aluminum alloy 3003
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2009Co-Authors: Akmal Siddiq, Elaheh GhassemiehAbstract:Ultrasonic Welding (consolidation) process is a rapid manufacturing process that is used to join thin layers of metal at low temperature and low energy consumption. Experimental results have shown that Ultrasonic Welding is a combination of both surface (friction) and volume (plasticity) softening effects. In the presented work, an attempt has been made to simulate the Ultrasonic Welding of metals by taking into account these effects (surface and volume). A phenomenological material model has been proposed, which incorporates these two effects (i.e., surface and volume). The thermal softening due to friction and Ultrasonic (acoustic) softening has been included in the proposed material model. For surface effects, a friction law with variable coefficient of friction that is dependent on contact pressure, slip, temperature, and number of cycles has been derived from experimental friction tests. The results of the thermomechanical analyses of Ultrasonic Welding of aluminum alloy have been presented. The goal of this work is to study the effects of Ultrasonic Welding process parameters, such as applied load, amplitude of Ultrasonic oscillation, and velocity of Welding sonotrode on the friction work at the weld interface. The change in the friction work at the weld interface has been explained on the basis of softening (thermal and acoustic) of the specimen during the Ultrasonic Welding process. In the end, a comparison between experimental and simulated results has been presented, showing a good agreement.
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Thermomechanical analyses of Ultrasonic Welding process using thermal and acoustic softening effects
Mechanics of Materials, 2008Co-Authors: Akmal Siddiq, Elaheh GhassemiehAbstract:Ultrasonic Welding process is a rapid manufacturing process used to weld thin layers of metal at low temperatures and low energy consumption. Experimental results have shown that Ultrasonic Welding is a combination of both surface (friction) and volume (plasticity) softening effects. In the presented work, a very first attempt has been made to simulate the Ultrasonic Welding of metals by taking into account both of these effects (surface and volume). A phenomenological material model has been proposed which incorporates these two effects (i.e. surface and volume). The thermal softening due to friction and Ultrasonic (acoustic) softening has been included in the proposed material model. For surface effects a friction law with variable coefficient of friction dependent upon contact pressure, slip, temperature and number of cycles has been derived from experimental friction tests. Thermomechanical analyses of Ultrasonic Welding of aluminium alloy have been performed. The effects of Ultrasonic Welding process parameters, such as applied load, amplitude of Ultrasonic vibration, and velocity of Welding sonotrode on the friction work at the weld interface are being analyzed. The change in the friction work at the weld interface has been explained on the basis of softening (thermal and acoustic) of the specimen during the Ultrasonic Welding process. In the end, a comparison between experimental and simulated results has been presented showing a good agreement.
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Thermomechanical analyses of Ultrasonic Welding process using thermal and acoustic softening effects
Mechanics of Materials, 2008Co-Authors: Akmal Siddiq, Elaheh GhassemiehAbstract:Ultrasonic Welding process is a rapid manufacturing process used to weld thin layers of metal at low temperatures and low energy consumption. Experimental results have shown that Ultrasonic Welding is a combination of both surface (friction) and volume (plasticity) softening effects. In the presented work, a very first attempt has been made to simulate the Ultrasonic Welding of metals by taking into account both of these effects (surface and volume). A phenomenological material model has been proposed which incorporates these two effects (i.e. surface and volume). The thermal softening due to friction and Ultrasonic (acoustic) softening has been included in the proposed material model. For surface effects a friction law with variable coefficient of friction dependent upon contact pressure, slip, temperature and number of cycles has been derived from experimental friction tests. Thermomechanical analyses of Ultrasonic Welding of aluminium alloy have been performed. The effects of Ultrasonic Welding process parameters, such as applied load, amplitude of Ultrasonic vibration, and velocity of Welding sonotrode on the friction work at the weld interface are being analyzed. The change in the friction work at the weld interface has been explained on the basis of softening (thermal and acoustic) of the specimen during the Ultrasonic Welding process. In the end, a comparison between experimental and simulated results has been presented showing a good agreement. © 2008 Elsevier Ltd. All rights reserved.
Akmal Siddiq - One of the best experts on this subject based on the ideXlab platform.
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Theoretical and FE analysis of Ultrasonic Welding of aluminum alloy 3003
Journal of Manufacturing Science and Engineering-transactions of The Asme, 2009Co-Authors: Akmal Siddiq, Elaheh GhassemiehAbstract:Ultrasonic Welding (consolidation) process is a rapid manufacturing process that is used to join thin layers of metal at low temperature and low energy consumption. Experimental results have shown that Ultrasonic Welding is a combination of both surface (friction) and volume (plasticity) softening effects. In the presented work, an attempt has been made to simulate the Ultrasonic Welding of metals by taking into account these effects (surface and volume). A phenomenological material model has been proposed, which incorporates these two effects (i.e., surface and volume). The thermal softening due to friction and Ultrasonic (acoustic) softening has been included in the proposed material model. For surface effects, a friction law with variable coefficient of friction that is dependent on contact pressure, slip, temperature, and number of cycles has been derived from experimental friction tests. The results of the thermomechanical analyses of Ultrasonic Welding of aluminum alloy have been presented. The goal of this work is to study the effects of Ultrasonic Welding process parameters, such as applied load, amplitude of Ultrasonic oscillation, and velocity of Welding sonotrode on the friction work at the weld interface. The change in the friction work at the weld interface has been explained on the basis of softening (thermal and acoustic) of the specimen during the Ultrasonic Welding process. In the end, a comparison between experimental and simulated results has been presented, showing a good agreement.
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Thermomechanical analyses of Ultrasonic Welding process using thermal and acoustic softening effects
Mechanics of Materials, 2008Co-Authors: Akmal Siddiq, Elaheh GhassemiehAbstract:Ultrasonic Welding process is a rapid manufacturing process used to weld thin layers of metal at low temperatures and low energy consumption. Experimental results have shown that Ultrasonic Welding is a combination of both surface (friction) and volume (plasticity) softening effects. In the presented work, a very first attempt has been made to simulate the Ultrasonic Welding of metals by taking into account both of these effects (surface and volume). A phenomenological material model has been proposed which incorporates these two effects (i.e. surface and volume). The thermal softening due to friction and Ultrasonic (acoustic) softening has been included in the proposed material model. For surface effects a friction law with variable coefficient of friction dependent upon contact pressure, slip, temperature and number of cycles has been derived from experimental friction tests. Thermomechanical analyses of Ultrasonic Welding of aluminium alloy have been performed. The effects of Ultrasonic Welding process parameters, such as applied load, amplitude of Ultrasonic vibration, and velocity of Welding sonotrode on the friction work at the weld interface are being analyzed. The change in the friction work at the weld interface has been explained on the basis of softening (thermal and acoustic) of the specimen during the Ultrasonic Welding process. In the end, a comparison between experimental and simulated results has been presented showing a good agreement.
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Thermomechanical analyses of Ultrasonic Welding process using thermal and acoustic softening effects
Mechanics of Materials, 2008Co-Authors: Akmal Siddiq, Elaheh GhassemiehAbstract:Ultrasonic Welding process is a rapid manufacturing process used to weld thin layers of metal at low temperatures and low energy consumption. Experimental results have shown that Ultrasonic Welding is a combination of both surface (friction) and volume (plasticity) softening effects. In the presented work, a very first attempt has been made to simulate the Ultrasonic Welding of metals by taking into account both of these effects (surface and volume). A phenomenological material model has been proposed which incorporates these two effects (i.e. surface and volume). The thermal softening due to friction and Ultrasonic (acoustic) softening has been included in the proposed material model. For surface effects a friction law with variable coefficient of friction dependent upon contact pressure, slip, temperature and number of cycles has been derived from experimental friction tests. Thermomechanical analyses of Ultrasonic Welding of aluminium alloy have been performed. The effects of Ultrasonic Welding process parameters, such as applied load, amplitude of Ultrasonic vibration, and velocity of Welding sonotrode on the friction work at the weld interface are being analyzed. The change in the friction work at the weld interface has been explained on the basis of softening (thermal and acoustic) of the specimen during the Ultrasonic Welding process. In the end, a comparison between experimental and simulated results has been presented showing a good agreement. © 2008 Elsevier Ltd. All rights reserved.
Jonghyun Kim - One of the best experts on this subject based on the ideXlab platform.
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Weldability of Cu54Zr22Ti18Ni6 bulk metallic glass by Ultrasonic Welding processing
Materials Letters, 2014Co-Authors: Jonghyun KimAbstract:Cu54Zr22Ti18Ni6 (numbers indicate at%) bulk metallic glass with glass forming ability of 6 mm was joined using Ultrasonic Welding. After Welding fully amorphous materials, crystallization was investigated using micro area x-ray diffraction, scanning electron microscopy, and differential scanning calorimetry. However, there was no crystallization through the joint and the weld interface could not be ascertained. In view of joint morphology and phase stability, Ultrasonic Welding processing shows a potent capability for joining bulk metallic glass materials. ?? 2014 Elsevier B.V.
H. Nakamura - One of the best experts on this subject based on the ideXlab platform.
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Ultrasonic Welding of polymer optical fibres onto composite materials
Electronics Letters, 2016Co-Authors: S. Shimada, Koji Hasebe, Y. Ochi, Takahiro Matsui, Ichiro Nishizaki, N Hayashi, Y. Matsumoto, Yosuke Tanaka, H. Tanaka, H. NakamuraAbstract:The Ultrasonic Welding of polymer optical fibres (POFs) onto carbon-fibre-reinforced polymers for advanced fibre-optic sensing is demonstrated. The relationships among the Welding time, preload, optical loss, and adhesive force are fully evaluated. A high-speed camera to monitor changes in the cross section of the POF during the Ultrasonic Welding is also used.
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Ultrasonic Welding of polymer optical fibres onto composite materials
Electronics Letters, 2016Co-Authors: S. Shimada, Teruyuki Matsui, Koji Hasebe, Y. Ochi, Ichiro Nishizaki, N Hayashi, Y. Matsumoto, Yoshitaka Tanaka, H. Tanaka, H. NakamuraAbstract:© 2016 The Institution of Engineering and Technology. The Ultrasonic Welding of polymer optical fibres (POFs) onto carbon-fibre-reinforced polymers for advanced fibre-optic sensing is demonstrated. The relationships among the Welding time, preload, optical loss, and adhesive force are fully evaluated. A high-speed camera to monitor changes in the cross section of the POF during the Ultrasonic Welding is also used.
