scholarly journals Robotic Deep Penetration K-TIG Welding System Based on Weld Penetration Detection

2019 ◽  
Vol 55 (17) ◽  
pp. 14 ◽  
Author(s):  
ZHANG Baori ◽  
GU Shengyong ◽  
SHI Yonghua
Keyword(s):  
Tig Welding ◽  
Deep Penetration ◽  
Weld Penetration ◽  
Welding System ◽  
Penetration Detection

OCT-Einschweißtiefenüberwachung bei Unterdruck/OCT-based weld penetration monitoring at reduced ambient pressure – Influence of reduced ambient pressure on the OCT signal quality in laser deep penetration welding

2021 ◽  
Vol 111 (11-12) ◽  
pp. 863-868
Author(s):  
Thorsten Mattulat ◽  
Ronald Pordzik ◽  
Peer Woizeschke
Keyword(s):  
Penetration Depth ◽  
Ambient Pressure ◽  
Laser Beam Welding ◽  
In Situ Monitoring ◽  
Deep Penetration ◽  
Weld Penetration ◽  
Laser Deep Penetration Welding ◽  
Deep Penetration Welding ◽  
Non Destructive

Die optische Kohärenztomographie (OCT) erlaubt die zerstörungsfreie In-situ-Überwachung der Einschweißtiefe beim Laserstrahlschweißen. Für dieses Verfahren wird hier der Einfluss von verringerten Umgebungsdrücken auf die Messqualität untersucht. Es wird gezeigt, dass sich bei niedrigerem Umgebungsdruck deutlich größere Signalanteile aus dem Bereich des Bodens der Dampfkapillare zurückerhalten lassen. Auf diese Weise steigen die effektive Messfrequenz und die Erkennbarkeit von Änderungen der Einschweißtiefe.   Optical coherence tomography (OCT) enables non-destructive in-situ monitoring of the weld penetration depth during laser beam welding. For this technology, the influence of reduced ambient pressures on the measurement quality is investigated. It is shown that significantly larger signal components are obtained from the bottom of the vapor capillary at lower ambient pressure increasing the applicable measurement frequency and the detectability of changes in the weld penetration depth.

Improving weld penetration by employing of magnetic poles’ configurations to an autogenous tungsten inert gas (TIG) welding

2018 ◽  
Vol 99 (5-8) ◽  
pp. 1603-1613 ◽  
Author(s):  
Ario Sunar Baskoro ◽  
Angga Fauzian ◽  
Haikal Basalamah ◽  
Gandjar Kiswanto ◽  
Winarto Winarto
Keyword(s):  
Tig Welding ◽  
Inert Gas ◽  
Weld Penetration ◽  
Magnetic Poles

Correlation between fusion hole morphology and weld penetration in TIG welding

2018 ◽  
Vol 101 (9-12) ◽  
pp. 2991-3000 ◽  
Author(s):  
Yongjian Guo ◽  
Jinqiang Gao ◽  
Chuansong Wu ◽  
Xiyu Gui
Keyword(s):  
Tig Welding ◽  
Weld Penetration

scholarly journals Augmentation of weld penetration by flux assisted TIG welding and its distinct variants for oxygen free copper

2021 ◽  
Vol 10 ◽  
pp. 138-151
Author(s):  
Harikrishna Rana ◽  
Vishvesh Badheka ◽  
Parth Patel ◽  
Vivek Patel ◽  
Wenya Li ◽  
...  
Keyword(s):  
Tig Welding ◽  
Weld Penetration

Study of the Effect of Active Fluxes in Gas Tungsten Arc Welding

2011 ◽  
Vol 189-193 ◽  
pp. 3579-3582
Author(s):  
Jian Hao ◽  
Zhen Luo ◽  
Xian Zheng Bu ◽  
Jian Wu Zhang
Keyword(s):  
Stainless Steel ◽  
Thin Layer ◽  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Steel Plates ◽  
Angular Distortion ◽  
Deep Penetration ◽  
Weld Penetration ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

In order to investigate the effect of active fluxes on weld penetration, angular distortion and weld morphology in gas tungsten arc welding (GTAW), three types of oxide fluxes-CaO, TiO2and Al2O3-were used in the welding of 5mm think stainless steel plates. Those powders were applied through a thin layer of the flux to produce a bead on plate welds. The results showed that compared with conventional TIG welding, increased weld penetration and reduced angular distortion of the weld piece were obtained with the application of active fluxes. However, the weld morphology was not changed significantly when the powders were coated on the surface of steel. It was also found that each of the powders has a fittest range in penetration increment. Whether the rate of the coating run out of the range, the effects of these active fluxes on the increased weld penetration were not obvious. The CaO flux has a narrow effective range for deep penetration, while the Al2O3powder does have no effect on A-TIG penetration. The mechanism of those different performances has not been found out. According to the investment, the mechanism of active fluxes for the increased weld penetration and reduced angular distortion is related to the contraction of the arc.

Recognition of Weld Penetration During K-TIG Welding Based on Acoustic and Visual Sensing

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Tao Zhu ◽  
Yonghua Shi ◽  
Shuwan Cui ◽  
Yanxin Cui
Keyword(s):  
Tig Welding ◽  
Weld Penetration ◽  
Visual Sensing

Research on Twin-Arc TIG Welding with Ultrasonic Excitation and Its Effect to Weld

2010 ◽  
Vol 450 ◽  
pp. 300-303 ◽  
Author(s):  
Jian Jun Wang ◽  
Xiao Ou Hong
Keyword(s):  
Mechanical Properties ◽  
Heat Source ◽  
Tensile Properties ◽  
Molten Pool ◽  
Tensile Testing ◽  
Deposition Efficiency ◽  
Tig Welding ◽  
Metallographic Analysis ◽  
Dc Arc ◽  
Welding System

. In order to enhance the mechanical properties of weld by using ultrasonic vibration, a new method of twin-arc TIG welding was developed. The welding will be completed by jointly using combined ultrasonic arc and ordinary DC arc technology. The ultrasonic arc was used for injecting ultrasound excitation into the molten pool to improve weld quality, and the DC arc was used as main heat source to increase deposition efficiency. The feasibility experiment of the welding system was done by using the steel 304. Metallographic analysis shows that the method can thin the microstructure of weld. The tensile testing under nature temperature indicates that the method can improve tensile properties of the weld effectively.

Sign in / Sign up

Export Citation Format

Share Document