The Experts below are selected from a list of 16302 Experts worldwide ranked by ideXlab platform
Anthony N. Palazotto - One of the best experts on this subject based on the ideXlab platform.
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Surface roughness of electron beam melting Ti-6Al-4V effect on Ultrasonic Testing
Additive Manufacturing Handbook: Product Development for the Defense Industry, 2017Co-Authors: Evan Hanks, David Liu, Anthony N. PalazottoAbstract:© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.Experimental research is underway focusing on the effect of surface roughness on defect detection using Ultrasonic inspection. A nondestructive inspection technique for additively manufactured parts is necessary before such parts are utilized as production end-items for use in aircraft battle damage repair applications such as the rapid, on-demand, 3D-printing of aircraft replacement parts. This research will experimentally examine the effectiveness of Ultrasonic Testing on electron beam melting additively manufactured samples made from Ti-6Al-4V. Experimental results will determine whether surface machining to remove roughness will effectively enhance detectability and resolution of Ultrasonic inspection.
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surface roughness of electron beam melting ti 6al 4v effect on Ultrasonic Testing
57th AIAA ASCE AHS ASC Structures Structural Dynamics and Materials Conference, 2016Co-Authors: Evan Hanks, Anthony N. PalazottoAbstract:Experimental research is underway focusing on the effect of surface roughness on defect detection using Ultrasonic inspection. A nondestructive inspection technique for additively manufactured parts is necessary before such parts are utilized as production end-items for use in aircraft battle damage repair applications such as the rapid, on-demand, 3D-printing of aircraft replacement parts. This research will experimentally examine the effectiveness of Ultrasonic Testing on electron beam melting additively manufactured samples made from Ti-6Al-4V. Experimental results will determine whether surface machining to remove roughness will effectively enhance detectability and resolution of Ultrasonic inspection.
Roberto Montanini - One of the best experts on this subject based on the ideXlab platform.
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Air-coupled Ultrasonic Testing to estimate internal defects in composite panels used for boats and luxury yachts
International Journal on Interactive Design and Manufacturing (IJIDeM), 2020Co-Authors: Antonino Quattrocchi, Fabrizio Freni, Roberto MontaniniAbstract:In constructions of boats and luxury yachts, Glass Fiber Reinforced Polymer (GFRP) composite materials are widely employed owing to their high mechanical performance, light weight and flexibility in manufacturing complex shapes. However, GFRP composite materials can be affected by several intrinsic defects (e.g. inclusion, delamination, resin excess or lack), because of both wrong production process and post-production handling. Although conventional Ultrasonic Testing is the most applied method to enhance the structural safety and quality, it presents a strong limitation in achieving an efficient contact between the transducers and the Testing surfaces. Air-coupled Ultrasonic Testing can be used as a valid alternative, overcoming the previous disadvantage. Aim of this study is to demonstrate the ability of air-coupled Ultrasonic Testing (ACUT) for qualitatively and quantitatively evaluation of internal defects in GFRP composite panels as those typically used for boats and luxury yachts construction. Simulated delaminations of different sizes have been analysed as well as excess and lack of resin. Results highlighted that a good signal-to-noise ratio can be achieved for delamination greater than 15 mm with correct defect shape recovering, hence making ACUT an appropriate choice for the interactive engineering design and manufacturing of boats.
Evan Hanks - One of the best experts on this subject based on the ideXlab platform.
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Surface roughness of electron beam melting Ti-6Al-4V effect on Ultrasonic Testing
Additive Manufacturing Handbook: Product Development for the Defense Industry, 2017Co-Authors: Evan Hanks, David Liu, Anthony N. PalazottoAbstract:© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.Experimental research is underway focusing on the effect of surface roughness on defect detection using Ultrasonic inspection. A nondestructive inspection technique for additively manufactured parts is necessary before such parts are utilized as production end-items for use in aircraft battle damage repair applications such as the rapid, on-demand, 3D-printing of aircraft replacement parts. This research will experimentally examine the effectiveness of Ultrasonic Testing on electron beam melting additively manufactured samples made from Ti-6Al-4V. Experimental results will determine whether surface machining to remove roughness will effectively enhance detectability and resolution of Ultrasonic inspection.
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surface roughness of electron beam melting ti 6al 4v effect on Ultrasonic Testing
57th AIAA ASCE AHS ASC Structures Structural Dynamics and Materials Conference, 2016Co-Authors: Evan Hanks, Anthony N. PalazottoAbstract:Experimental research is underway focusing on the effect of surface roughness on defect detection using Ultrasonic inspection. A nondestructive inspection technique for additively manufactured parts is necessary before such parts are utilized as production end-items for use in aircraft battle damage repair applications such as the rapid, on-demand, 3D-printing of aircraft replacement parts. This research will experimentally examine the effectiveness of Ultrasonic Testing on electron beam melting additively manufactured samples made from Ti-6Al-4V. Experimental results will determine whether surface machining to remove roughness will effectively enhance detectability and resolution of Ultrasonic inspection.
Antonino Quattrocchi - One of the best experts on this subject based on the ideXlab platform.
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Air-coupled Ultrasonic Testing to estimate internal defects in composite panels used for boats and luxury yachts
International Journal on Interactive Design and Manufacturing (IJIDeM), 2020Co-Authors: Antonino Quattrocchi, Fabrizio Freni, Roberto MontaniniAbstract:In constructions of boats and luxury yachts, Glass Fiber Reinforced Polymer (GFRP) composite materials are widely employed owing to their high mechanical performance, light weight and flexibility in manufacturing complex shapes. However, GFRP composite materials can be affected by several intrinsic defects (e.g. inclusion, delamination, resin excess or lack), because of both wrong production process and post-production handling. Although conventional Ultrasonic Testing is the most applied method to enhance the structural safety and quality, it presents a strong limitation in achieving an efficient contact between the transducers and the Testing surfaces. Air-coupled Ultrasonic Testing can be used as a valid alternative, overcoming the previous disadvantage. Aim of this study is to demonstrate the ability of air-coupled Ultrasonic Testing (ACUT) for qualitatively and quantitatively evaluation of internal defects in GFRP composite panels as those typically used for boats and luxury yachts construction. Simulated delaminations of different sizes have been analysed as well as excess and lack of resin. Results highlighted that a good signal-to-noise ratio can be achieved for delamination greater than 15 mm with correct defect shape recovering, hence making ACUT an appropriate choice for the interactive engineering design and manufacturing of boats.
Binshi Xu - One of the best experts on this subject based on the ideXlab platform.
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Progress and Challenges of Ultrasonic Testing for Stress in Remanufacturing Laser Cladding Coating
Materials, 2018Co-Authors: Shiyun Dong, Binshi XuAbstract:Stress in laser cladding coating is an important factor affecting the safe operation of remanufacturing components. Ultrasonic Testing has become a popular approach in the nondestructive evaluation of stress, because it has the advantages of safety, nondestructiveness, and online detection. This paper provides a review of Ultrasonic Testing for stress in remanufacturing laser cladding coating. It summarizes the recent research outcomes on Ultrasonic Testing for stress, and analyzes the mechanism of Ultrasonic Testing for stress. Remanufacturing laser cladding coating shows typical anisotropic behaviors. The Ultrasonic Testing signal in laser cladding coating is influenced by many complex factors, such as microstructure, defect, temperature, and surface roughness, among others. At present, Ultrasonic Testing for stress in laser cladding coating can only be done roughly. This paper discusses the active mechanism of micro/macro factors in the reliability of stress measurement, as well as the impact of stress measurement on the quality and safety of remanufacturing components. Based on the discussion, this paper proposes strategies to nondestructively, rapidly, and accurately measure stress in remanufacturing laser cladding coating.
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Progresses and Challenges of Ultrasonic Testing for Stress in Remanufacturing Laser Cladding Coating
2018Co-Authors: Shiyun Dong, Binshi XuAbstract:Stess in laser cladding coating is an important factor affecting the safe operation of remanufacturing components. Ultrasonic Testing has become a hot direction in nondestructive evaluation of stress, because it has the advantages of safety, non-destructive and on-line detection. This paper provides a review of Ultrasonic Testing for stress in remanufacturing laser cladding coating. It summarizes the recent research outcomes on Ultrasonic Testing for stress, analyzes mechanism of Ultrasonic Testing for stress. Remanufacturing laser cladding coating shows typical anisotropic behaviors, the Ultrasonic Testing signal in laser cladding coating is influenced by many complex factors, such as microstructure, defect, temperature and surface roughness, etc. At present, Ultrasonic Testing for stress in laser cladding coating can only be done roughly. The paper discusses active mechanism of micro / macro factors to the reliability of stress measurement and the impact of stress measurement to the quality and safety of remanufacturing components. Base on the discussion, the paper proposes strategies for acquisition of nondestructive, rapid and accurate measurement of stress in remanufacturing laser cladding coating.
