The Experts below are selected from a list of 768 Experts worldwide ranked by ideXlab platform

Yong Wang - One of the best experts on this subject based on the ideXlab platform.

  • Analysis and Evaluation for Usability of the Lime Titania Type Structural Steel Covered Electrode
    Advanced Materials Research, 2010
    Co-Authors: Yong Wang, Bao Wang, Li Song, Zhi Jun Wang
    Abstract:

    Metal Transfer mode of the lime titania type structural steel covered electrode is a mixed one that coexists as the globular Short-Circuiting Transfer, the flux-wall guided Transfer, the explosive Transfer and the spray Transfer. Constitute of the metal Transfer modes has a direct effect on usability of the covered electrode. Using the Analysator Hannover, the welding electric parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode are extracted, such as the sum of probability density of the Short-Circuiting voltage, variation coefficient of the arc voltage, the sum of probability density of the big Short-Circuiting current and the Short-Circuiting frequency, and then method of the principal component analysis is applied to determining evaluation index of usability of the covered electrode. Usability of the covered electrode is quantitatively evaluated. It offers a new method for scientifically evaluating usability of the lime titania type structural steel covered electrode.

  • Analysis and Evaluation for Usability of the Low Hydrogen Type Structural Steel Covered Electrode
    Materials Science Forum, 2008
    Co-Authors: Yong Wang, Bao Wang, Jun Hua Gao
    Abstract:

    Metal Transfer mode of the low hydrogen type structural steel covered electrode is the one that coexists as the globular Short-Circuiting Transfer and the fine droplet Transfer in the flux-bridge. Component of the metal Transfer modes has a direct effect on usability of the covered electrode. The oscillograms of the arc voltage and the welding current gained using the traditional photoelectric oscillograph can only qualitatively describe the general characteristics of metal Transfer, but can’t make a quantitative analysis. Using the ANALYSATOR HANNOVER, the welding electrical parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode, such as the frequency of the globular Short-Circuiting Transfer, the globular Short-Circuiting time, the mean value of the globular Short-Circuiting time and the mean value of the weighted arcing time, are extracted. The method of principal component analysis is applied to determining the evaluation index for usability of the covered electrode. Thereby quantitative evaluation for usability of the covered electrode is realized. A new method is offered for scientifically evaluating usability of the low hydrogen type structural steel covered electrode.

Bao Wang - One of the best experts on this subject based on the ideXlab platform.

  • Analysis and Evaluation for Usability of the Lime Titania Type Structural Steel Covered Electrode
    Advanced Materials Research, 2010
    Co-Authors: Yong Wang, Bao Wang, Li Song, Zhi Jun Wang
    Abstract:

    Metal Transfer mode of the lime titania type structural steel covered electrode is a mixed one that coexists as the globular Short-Circuiting Transfer, the flux-wall guided Transfer, the explosive Transfer and the spray Transfer. Constitute of the metal Transfer modes has a direct effect on usability of the covered electrode. Using the Analysator Hannover, the welding electric parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode are extracted, such as the sum of probability density of the Short-Circuiting voltage, variation coefficient of the arc voltage, the sum of probability density of the big Short-Circuiting current and the Short-Circuiting frequency, and then method of the principal component analysis is applied to determining evaluation index of usability of the covered electrode. Usability of the covered electrode is quantitatively evaluated. It offers a new method for scientifically evaluating usability of the lime titania type structural steel covered electrode.

  • Analysis and Evaluation for Usability of the Low Hydrogen Type Structural Steel Covered Electrode
    Materials Science Forum, 2008
    Co-Authors: Yong Wang, Bao Wang, Jun Hua Gao
    Abstract:

    Metal Transfer mode of the low hydrogen type structural steel covered electrode is the one that coexists as the globular Short-Circuiting Transfer and the fine droplet Transfer in the flux-bridge. Component of the metal Transfer modes has a direct effect on usability of the covered electrode. The oscillograms of the arc voltage and the welding current gained using the traditional photoelectric oscillograph can only qualitatively describe the general characteristics of metal Transfer, but can’t make a quantitative analysis. Using the ANALYSATOR HANNOVER, the welding electrical parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode, such as the frequency of the globular Short-Circuiting Transfer, the globular Short-Circuiting time, the mean value of the globular Short-Circuiting time and the mean value of the weighted arcing time, are extracted. The method of principal component analysis is applied to determining the evaluation index for usability of the covered electrode. Thereby quantitative evaluation for usability of the covered electrode is realized. A new method is offered for scientifically evaluating usability of the low hydrogen type structural steel covered electrode.

Zhi Jun Wang - One of the best experts on this subject based on the ideXlab platform.

  • Analysis and Evaluation for Usability of the Lime Titania Type Structural Steel Covered Electrode
    Advanced Materials Research, 2010
    Co-Authors: Yong Wang, Bao Wang, Li Song, Zhi Jun Wang
    Abstract:

    Metal Transfer mode of the lime titania type structural steel covered electrode is a mixed one that coexists as the globular Short-Circuiting Transfer, the flux-wall guided Transfer, the explosive Transfer and the spray Transfer. Constitute of the metal Transfer modes has a direct effect on usability of the covered electrode. Using the Analysator Hannover, the welding electric parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode are extracted, such as the sum of probability density of the Short-Circuiting voltage, variation coefficient of the arc voltage, the sum of probability density of the big Short-Circuiting current and the Short-Circuiting frequency, and then method of the principal component analysis is applied to determining evaluation index of usability of the covered electrode. Usability of the covered electrode is quantitatively evaluated. It offers a new method for scientifically evaluating usability of the lime titania type structural steel covered electrode.

Jun Hua Gao - One of the best experts on this subject based on the ideXlab platform.

  • Analysis and Evaluation for Usability of the Low Hydrogen Type Structural Steel Covered Electrode
    Materials Science Forum, 2008
    Co-Authors: Yong Wang, Bao Wang, Jun Hua Gao
    Abstract:

    Metal Transfer mode of the low hydrogen type structural steel covered electrode is the one that coexists as the globular Short-Circuiting Transfer and the fine droplet Transfer in the flux-bridge. Component of the metal Transfer modes has a direct effect on usability of the covered electrode. The oscillograms of the arc voltage and the welding current gained using the traditional photoelectric oscillograph can only qualitatively describe the general characteristics of metal Transfer, but can’t make a quantitative analysis. Using the ANALYSATOR HANNOVER, the welding electrical parameters are measured and analyzed. Four characteristic information values correlated with usability of the covered electrode, such as the frequency of the globular Short-Circuiting Transfer, the globular Short-Circuiting time, the mean value of the globular Short-Circuiting time and the mean value of the weighted arcing time, are extracted. The method of principal component analysis is applied to determining the evaluation index for usability of the covered electrode. Thereby quantitative evaluation for usability of the covered electrode is realized. A new method is offered for scientifically evaluating usability of the low hydrogen type structural steel covered electrode.

Chunli Yang - One of the best experts on this subject based on the ideXlab platform.

  • Effects of ultrasonic energy on Short-Circuiting Transfer process in PU-GMA welding
    Materials and Manufacturing Processes, 2019
    Co-Authors: Chao Chen, Xiaoyu Cai, Chenglei Fan, Sanbao Lin, Chunli Yang
    Abstract:

    ABSTRACTFor Short-Circuiting Transfer, a smaller Short-Circuiting current is useful to obtain a better quality of welded joints, such as less spatter and better welding surface. By analyzing images...

  • Influence of pulsed ultrasound on Short Transfer behaviors in gas metal arc welding
    Journal of Materials Processing Technology, 2019
    Co-Authors: Chao Chen, Xiaoyu Cai, Chenglei Fan, Sanbao Lin, Chunli Yang, Lei Zhou
    Abstract:

    Abstract Addition pulsed ultrasound in GAMW process, which is described as the pulsed ultrasound wave assisted GMAW (PU-GMAW), has become a new method to control the droplet Transfer process. The effect of frequency on Short-Circuiting Transfer characteristics in the PU-GMAW process was investigated. The Short-Circuiting Transfer processes were analyzed via welding electric signal and high-speed video images. The results showed that the droplet Transfer processes of the PU-GMAW with the frequency of 20Hz and 50Hz were more stable than that of the conventional GMAW and U-GMAW. The PU-GMAW at the frequency of 50Hz obtained the minimum peak current and the minimum droplet Transfer cycle. The droplet size and arc shape in the PU-GMAW also had a similar conclusion. The middle electromagnetic forces of the U-GMAW and the PU-GMAW were greater than that of the GMAW. The electromagnetic force of the PU-GMAW was bigger than that of the U-GMAW when the r was less than 1.75mm. Additionally, the electromagnetic force of U-GMAW was bigger than that of PU-GMAW when the r increased to more than 1.75mm. The greater the electromagnetic force increment, the stronger the effect of ultrasound on the electromagnetic force. Therefore, the effect of ultrasound on the electromagnetic force was the biggest in the middle of the arc. Meanwhile, the influence of pulsed ultrasound on the electromagnetic force was stronger compared with the U-GMAW.

  • process stability of ultrasonic wave assisted gas metal arc welding
    Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science, 2017
    Co-Authors: Chunli Yang
    Abstract:

    As a newly developed arc welding method, ultrasonic-wave-assisted arc welding successfully introduced power ultrasound into the arc and weld pool, during which the ultrasonic acts on the top of the arc in the coaxial alignment direction. The advanced process for molten metals can be realized by using an additional ultrasonic field. Compared with the conventional gas metal arc welding (GMAW), the welding arc is compressed, the droplet size is decreased, and the droplet Transfer frequency is increased significantly in ultrasonic-wave-assisted GMAW (U-GMAW). However, the stability of the metal Transfer has deep influence on the welding quality equally, and the ultrasonic wave effect on the stability of the metal Transfer is a phenomenon that is not completely understood. In this article, the stabilities of the Short-Circuiting Transfer process and globular Transfer process are studied systematically, and the effect of ultrasonic wave on the metal Transfer is analyzed further. The Transfer frequency and process stability of the U-GMAW process are much higher than those of the conventional GMAW. Analytical results show that the additional ultrasonic wave is helpful for improving welding stability.