Log in

Relevant bibliographies by topics / Weld penetration depth / Journal articles

To see the other types of publications on this topic, follow the link: Weld penetration depth.

Journal articles on the topic 'Weld penetration depth'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Weld penetration depth.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Yang, J., T. Sanderson, G. Graham, and C. Ume. "Laser Phased Array Measurement of Simulated Solidified Weld Penetration Depth." Journal of Manufacturing Science and Engineering 118, no. 2 (1996): 266–71. http://dx.doi.org/10.1115/1.2831020.

Full text

Abstract:

This paper presents an experimental investigation of the use of an optical fiber laser phased array to measure solidified weld pool penetration depth in butt and v-groove joints. The purpose was to determine the optimum distances between the ultrasound source (the array), receiver, and the weld joint, in order to measure weld penetration depth. The relationship between penetration depth and wave amplitude was approximately linear. A narrow range of distances between the ultrasound receiver and weld joint permitted the ultrasonic system to detect penetration depth over the entire thickness of t

APA, Harvard, Vancouver, ISO, and other styles

2

Tu, Jay F., Kishore N. Lankalapalli, Mark Gartner, and Keng H. Leong. "On-Line Estimation of Laser Weld Penetration." Journal of Dynamic Systems, Measurement, and Control 119, no. 4 (1997): 791–801. http://dx.doi.org/10.1115/1.2802392.

Full text

Abstract:

High-power CO2 laser welding has been widely used in the industry because of its high productivity and excellent weld quality. In order to tap the potential of this process completely, it is important to have on-line weld quality inspection methods to improve the process productivity and reliability by achieving 100 percent weld inspection. Weld penetration is one of the most important factors critical to the quality of a laser weld. However, it is very difficult to directly measure the extent of penetration without sectioning the workpiece. In this paper a model-based penetration depth estima

APA, Harvard, Vancouver, ISO, and other styles

3

Lankalapalli, K. N., J. F. Tu, K. H. Leong, and M. Gartner. "Laser Weld Penetration Estimation Using Temperature Measurements." Journal of Manufacturing Science and Engineering 121, no. 2 (1999): 179–88. http://dx.doi.org/10.1115/1.2831202.

Full text

Abstract:

Penetration depth is an important factor critical to the quality of a laser weld. This paper presents a 3D heat conduction model with a moving line source to correlate the temperature measured on the bottom surface of the workpiece to the weld penetration, weld bead width and welding speed. Temperatures on the bottom surface of the workpiece are measured using infrared thermocouples located behind the laser beam. The averaging effect due to the temperature measurement spot size is analyzed. This paper provides a model-based approach for laser weld penetration monitoring instead of a pure empir

APA, Harvard, Vancouver, ISO, and other styles

4

Zhang, Y. M., R. Kovacevic, and L. Wu. "Sensitivity of Front-Face Weld Geometry in Representing the Full Penetration." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 206, no. 3 (1992): 191–97. http://dx.doi.org/10.1243/pime_proc_1992_206_073_02.

Full text

Abstract:

The measurement of weld penetration using a front-face sensor has been an important issue in welding automation. The fundamental problem is to find a measurable front-face parameter that can adequately represent the weld penetration. In this paper, both the front-face average weld depression depth (a novel weld geometrical parameter) and the weld width are selected as possible representations of full penetration in GTA welding. Two types of sensitivities of front-face weld geometry, with respect to variations in welding conditions and with respect to control variables, are proposed as criteria

APA, Harvard, Vancouver, ISO, and other styles

5

Li, Peizhi, Yu Fan, Chonghao Zhang, Zhiyuan Zhu, Wenteng Tian, and Anmin Liu. "Research on Heat Source Model and Weld Profile for Fiber Laser Welding of A304 Stainless Steel Thin Sheet." Advances in Materials Science and Engineering 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/5895027.

Full text

Abstract:

A heat source model is the key issue for laser welding simulation. The Gaussian heat source model is not suitable to match the actual laser weld profile accurately. Furthermore, fiber lasers are widely recognized to result in good-quality laser beam output, a narrower weld zone, less distortion, and high process efficiency, compared with other types of lasers (such as CO2, Nd : YAG, and diode lasers). At present, there are few heat source models for fiber laser welding. Most of researchers evaluate the weld profile only by the bead width and depth of penetration, which is not suitable for the

APA, Harvard, Vancouver, ISO, and other styles

6

Mi, Bao, and Charles Ume. "Real-Time Weld Penetration Depth Monitoring With Laser Ultrasonic Sensing System." Journal of Manufacturing Science and Engineering 128, no. 1 (2005): 280–86. http://dx.doi.org/10.1115/1.2137747.

Full text

Abstract:

A real-time ultrasound-based system for controlling robotic weld quality by monitoring the weld pool is presented. The weld penetration depth is one of the most important geometric parameters that define weld quality, hence, remains a key control quantity. The sensing system is based on using a laser phased array technique to generate focused and steered ultrasound, and an electromagnetic acoustic transducer (EMAT) as a receiver. When a pulsed laser beam is incident on the surface of a condensed matter, either the thermoelastic expansion or ablation induces mechanical vibrations that propagate

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Lu, Gorkem Okudan, Alexandra-Del-Carmen Basantes-Defaz, et al. "Characterization of GMAW (Gas Metal Arc Welding) Penetration Using Ultrasonics." Materials 13, no. 10 (2020): 2307. http://dx.doi.org/10.3390/ma13102307.

Full text

Abstract:

Welding defects such as lack of penetration, undercutting, crater crack, burn-through and porosity can occur during manufacturing. Assessing weld quality using nondestructive evaluation methods is important for the quality assurance of welded parts. In this paper, the measurement of weld penetration, which is directly related to weld integrity, is investigated by means of ultrasonics. Both linear and nonlinear ultrasonic methods are studied to assess their sensitivities to weld penetration. Welded plates with different penetration depths controlled by changing weld heat input are manufactured

APA, Harvard, Vancouver, ISO, and other styles

8

Fu, Qiang. "Development and Application of Activating Fluxes in TIG Welding." Applied Mechanics and Materials 157-158 (February 2012): 21–26. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.21.

Full text

Abstract:

The developing and application of activating flux which can dramatically increase the depth of weld bead penetration and improve the properties of weld bead using fusion welding process was summarized. The mechanisms of the activating flux increasing the depth of weld bead penetration especially the theories of arc constriction and the change of temperature gradient of surface tension were analyzed. The research work indicates that the activating flux will be used in more welding process to obtain deep weld penetration, high productivity, low deformation and excellent joint mechanical properti

APA, Harvard, Vancouver, ISO, and other styles

9

Sahoo, Ajitav, and Sasmeeta Tripathy. "Improvement in Depth of Weld Penetration During TIG, Activated-TIG, and Pulsed TIG Welding." International Journal of Manufacturing, Materials, and Mechanical Engineering 11, no. 2 (2021): 68–86. http://dx.doi.org/10.4018/ijmmme.2021040105.

Full text

Abstract:

Joining of dissimilar materials has gained a lot of interest in the recent years due to the increased demand of high strength and light weight designs. Fusion welding plays a vital role in repairing and manufacturing industries like automobile, construction, ship building, and energy sector. Tungsten inert gas (TIG) welding is more advantageous over other welding processes as it produces high precision welds with aesthetic appearance. The limitation of the process is shallow penetration, distorted and weaker joint formation, and low productivity. In the present work, a critical review and anal

APA, Harvard, Vancouver, ISO, and other styles

10

Treutler, K., S. Brechelt, H. Wiche, and V. Wesling. "Beneficial use of hyperbaric process conditions for welding of aluminium and copper alloys." Welding in the World 65, no. 8 (2021): 1623–31. http://dx.doi.org/10.1007/s40194-021-01088-1.

Full text

Abstract:

AbstractThe joining of components with as few weld layers as possible is an important aspect of weld seam design due to the resulting reduced manufacturing effort and reduced influence of thermal cycles on the base material as well as reduced distortion. For materials with good thermal conductivity, this is not easily possible. The energy density of the arc has been found to be the core parameter for determining the penetration. In the present work, it is shown how the use of a hyperbaric process environment (2 to 16 bar) allows an increase of the energy density of the arc and thus an increase

APA, Harvard, Vancouver, ISO, and other styles

11

NARIKIYO, Toru, Hiroshi MIURA, Shigeki FUJINAGA, Hiroo TAKENAKA, Akira OHMORI, and Katsunori INOUE. "Increase in Weld Penetration Depth by Two Nd:YAG Laser Beams Combined." QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 17, no. 3 (1999): 364–74. http://dx.doi.org/10.2207/qjjws.17.364.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Mansour, Rami, Jinchao Zhu, Martin Edgren, and Zuheir Barsoum. "A probabilistic model of weld penetration depth based on process parameters." International Journal of Advanced Manufacturing Technology 105, no. 1-4 (2019): 499–514. http://dx.doi.org/10.1007/s00170-019-04110-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Zou, Shuangyang, Zhijiang Wang, Shengsun Hu, Wandong Wang, and Yue Cao. "Control of weld penetration depth using relative fluctuation coefficient as feedback." Journal of Intelligent Manufacturing 31, no. 5 (2019): 1203–13. http://dx.doi.org/10.1007/s10845-019-01506-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Cao, Z. N., Y. M. Zhang, and R. Kovacevic. "Numerical Dynamic Analysis of Moving GTA Weld Pool." Journal of Manufacturing Science and Engineering 120, no. 1 (1998): 173–78. http://dx.doi.org/10.1115/1.2830096.

Full text

Abstract:

A three dimensional model with a moving heat source is developed to describe heat transfer and fluid flow in transient weld pools. Full penetration and free top and bottom surfaces are incorporated in the model in order to simulate the welding process more practically. The influence of plate thickness and welding current on the dynamics of weld pools is analyzed using calculated data. It is shown that when the workpiece is nearly penetrated, the depth of weld pool increases quickly. Also, the elevation of the top surface decreases quickly once the full penetration status is established.

APA, Harvard, Vancouver, ISO, and other styles

15

Muhammad Naqiuddin Mat Salleh, Mahadzir Ishak, Kazuhiko Yamasaki, Moinuddin Mohammed Quazi, and Aiman Mohd Halil. "Pulsed Nd: YAG Laser Parameters Effect on Welding Uncoated Advance High Strength Steel (AHSS) for Automotive." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 84, no. 1 (2021): 91–100. http://dx.doi.org/10.37934/arfmts.84.1.91100.

Full text

Abstract:

Pulse wave (PW) welding technique has become more adequate process to produce a deep penetration welding with smaller fusion zone and heat affected zone for automotive steel joint. A 1.6 mm thickness of N22CB boron steel from advance high strength steel (AHSS) type was welded by using PW mode from a low power Nd: YAG laser. The process parameters studied in this paper are pulsed energy, Ep, focal length, F, and welding speed, S. Bead-on-plate (BOP) welding was used in this experiment. The effect of parameters on the weld pool geometry was studied. Higher pulsed energy gives high weld penetrati

APA, Harvard, Vancouver, ISO, and other styles

16

Manikya Kanti, K., Srinivasa Rao Pedapati, Ginka Ranga Janardhana, and A. M. A. Rani. "Mathematical Modeling for the Prediction of Depth of Penetration in Double Pulse GMA Welding Using Fractional Factorial Method." Applied Mechanics and Materials 660 (October 2014): 347–51. http://dx.doi.org/10.4028/www.scientific.net/amm.660.347.

Full text

Abstract:

The quality of weld joint is directly influenced by the input process parameters influenced by various process parameters during welding. The weld quality can be decided by bead geometry viz., depth of penetration and bead width. Inadequate depth of penetration will lead to failure of the welded structure. This paper presents the development of mathematical model for the prediction of depth of penetration of weld bead geometry in pulsed gas metal arc welding process in double pulse mode. The model is based on experimental data .In this investigation four input process parameters wire feed rate

APA, Harvard, Vancouver, ISO, and other styles

17

Zhang Jian, 张健, and 杨锐 Yang Rui. "Weld Penetration Depth Prediction of Pulsed Laser Welding Titanium Alloy Thin Plate." Chinese Journal of Lasers 39, no. 3 (2012): 0303001. http://dx.doi.org/10.3788/cjl201239.0303001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Narikiyo, T., H. Miura, S. Fujinaga, H. Takenaka, A. Ohmori, and K. Inoue. "Increase in weld penetration depth by two Nd: YAG laser beams combined." Welding International 14, no. 3 (2000): 191–202. http://dx.doi.org/10.1080/09507110009549164.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Liu, Li Ming, Chao Song, Qiu Ping Song, and Gang Song. "Effects of Phase Matching Pattern on Pulse Laser-Arc Hybrid Welding Process." Applied Mechanics and Materials 633-634 (September 2014): 634–37. http://dx.doi.org/10.4028/www.scientific.net/amm.633-634.634.

Full text

Abstract:

This paper proposed a method on accurate phase matching control between the pulse laser and the AC TIG arc in real time, and a pulse laser-arc hybrid heat source phase matching control system is developed as well. With the utilization of this system in two typical matching cases that the pulse laser acts on the peak and the trough of the arc welding current waveform, effect regulations on weld formation, weld penetration depth and hybrid plasma shape are studied during welding on magnesium alloy AZ61. Results indicate that, when the pulse laser acting on the peak of arc welding current wavefor

APA, Harvard, Vancouver, ISO, and other styles

20

Sánchez-Amaya, J. M., Z. Boukha, L. González-Rovira, M. R. Amaya-Vázquez, and Francisco Javier Botana. "Application of Laser Texturization to Increase the Depth of AA5083 Welds." Advanced Materials Research 498 (April 2012): 37–42. http://dx.doi.org/10.4028/www.scientific.net/amr.498.37.

Full text

Abstract:

The application of laser beam welding to aluminium alloys has some complications, mainly due to their high reflectivity, high thermal conductivity and low viscosity. In order to increase the laser absorption of aluminium alloys, some surface treatments has been applied in the literature, such as the application of dark coatings or sandblasting. However, these conventional superficial treatments have some drawbacks, such as the low weld penetration, the possibility to undergo magnesium evaporation and the impossibility to control and/or change the superficial properties of the treated samples.

APA, Harvard, Vancouver, ISO, and other styles

21

Graham, G. M., I. Charles Ume, and S. N. Hopko. "Laser Array/EMAT Ultrasonic Measurement of the Penetration Depth in a Liquid Weld Pool." Journal of Manufacturing Science and Engineering 122, no. 1 (1998): 70–75. http://dx.doi.org/10.1115/1.538910.

Full text

Abstract:

Ultrasonics has become widespread as a nondestructive testing technique. The most commonly used device for generation and reception of ultrasound are contacting piezo-electric transducers. Because these devices require physical coupling with the sample, test specimens must be stationary, and surfaces both cool and nonabrasive. Obviously, traditional contacting transducers cannot be used for real-time evaluation of certain manufacturing operations, such as weld quality control, where the test specimen could be in motion, and hot as well. This paper presents an evaluation of a noncontacting ultr

APA, Harvard, Vancouver, ISO, and other styles

22

Kumar, Kamlesh, Pankaj Ahirwar, and Manoj Masanta. "Effect of Varying Root Gap on Butt Welding of 6 mm Thick AISI 1020 Plate by Autogenous TIG Welding Process." Materials Science Forum 880 (November 2016): 21–24. http://dx.doi.org/10.4028/www.scientific.net/msf.880.21.

Full text

Abstract:

In this study, AISI 1020 plate of 6 mm thickness has been welded by autogenous TIG welding process maintaining different root gap (0, 0.5, 0.75 and 1 mm). The weld bead profile and the tensile strength of the welded joint has been analysed. From the experimental results it is revealed that, for increasing the root gap, weld depth penetration increases; whereas weld bead width and heat affected zone (HAZ) is almost uniform. However, at the similar condition, under-filling of the weld joint increases with the increase in root gap. For using 1 mm root gap, weld joint exhibit full depth of penetra

APA, Harvard, Vancouver, ISO, and other styles

23

He, Kuan Fang, Ji Gang Wu, Xue Jun Li, and H. Long. "Prediction Model of Twin-Arc High Speed Submerged Arc Weld Shape Based on Improved BP Neural Network." Advanced Materials Research 216 (March 2011): 194–99. http://dx.doi.org/10.4028/www.scientific.net/amr.216.194.

Full text

Abstract:

Twin-Arc high-speed submerged arc welding forming quality prediction model was developed by three layers BP (Back Propagation) neural network. In the model, twin arc current, twin arc voltage, welding speed and wire spacing are selected for the study factor, weld pool width and penetration depth are weld forming quality indicators. The adaptive learning rate and additional momentum term are introduced to improve BP algorithm. Experiments show that the network structure is reasonable of the nodes by inputting and outputting layers of 6 and 2 respectively, hidden layer nodes are 13. The develope

APA, Harvard, Vancouver, ISO, and other styles

24

Babu, A. V. Santhana, P. K. Giridharan, P. Ramesh Narayanan, S. V. S. Narayana Murty, and V. M. J. Sharma. "Experimental Investigations on Tensile Strength of Flux Bounded TIG Welds of AA2219-T87 Aluminum Alloy." Journal of Advanced Manufacturing Systems 13, no. 02 (2014): 103–12. http://dx.doi.org/10.1142/s0219686714500073.

Full text

Abstract:

Limitation in depth of penetration is a concern in conventional tungsten inert gas (TIG) welding process. To improve penetration capability of TIG process, flux bounded TIG (FBTIG) has been recently developed. Tensile strength of FBTIG welds of aluminum alloy AA2219-T87 is investigated in the present study and compared with that of conventional TIG welds and base metal. Tensile strength of FBTIG weld was found to be better than conventional TIG weld due to fine grain structure of FBTIG welds.

APA, Harvard, Vancouver, ISO, and other styles

25

Sridhar, S. P., S. Arun Kumar, and P. Sathiya. "A Study on the Effect of Different Activating Flux on A-TIG Welding Process of Incoloy 800H." Advances in Materials Science 16, no. 3 (2016): 26–37. http://dx.doi.org/10.1515/adms-2016-0014.

Full text

Abstract:

Abstract This study investigates the effect of different activating flux such as V2O5, TiO2, MoO3, Cr2O3, and Al2O3 on A-TIG welding process of Incoloy 800H. The influence of the flux on the depth of penetration and on mechanical and metallurgical characteristics of the weld were studied and compared with autogeneous TIG welds which were welded with the same process parameters and conditions. The use of TiO2 flux gave full depth of penetration and the use of V2O5, Cr2O3 flux gave increased penetration as compared to autogeneous TIG welds while the use of Al2O3 and MoO3 led to the detoriation o

APA, Harvard, Vancouver, ISO, and other styles

26

Jiang, Wen Hong, Ran Dong Yu, and Sheng Lu. "Effect of Compound Fluxes on A-TIG Welding Joint Depth of Cu-Cr-Zr Alloy." Materials Science Forum 749 (March 2013): 133–40. http://dx.doi.org/10.4028/www.scientific.net/msf.749.133.

Full text

Abstract:

A-TIG welding for Cu-Cr-Zr copper alloy was carried out on the eleven pure surface activating fluxes including oxides, fluorides and chlorides on the welding formation and the weld D/W ratio by the means of super depth of field and metallurgical microscope. It was found that the oxides and fluorides could improve welding penetration remarkably, especially with CaF2,ZnF2,SiO2 andCr2O3. Four compound fluxes were chosen from the eleven pure surface activating fluxes, which could increase the penetration and modify the welding shape. An optimized formula composed of the four compounds (CaF2,ZnF2,S

APA, Harvard, Vancouver, ISO, and other styles

27

JIANG, M., T. DEBROY, M. JIANG, Y. B. CHEN, X. CHEN, and W. TAO. "Enhanced Penetration Depth during Reduced Pressure Keyhole-Mode Laser Welding." Welding Journal 99, no. 4 (2020): 110s—123s. http://dx.doi.org/10.29391/2020.99.011.

Full text

Abstract:

Keyhole-mode laser welding under reduced ambient pressure is known to provide improved weld penetration, narrower width, and reduced incidences of defects, but the underlying mechanism for these benefits is not known. We sought to elucidate the mechanism by an experimental and theoretical program of investigation. Potential causative factors, such as the depression of the boiling point of al-loys at reduced pressures and the changes in laser beam attenuation by metal vapors/plasma, were investigated using a well-tested heat transfer and fluid flow model of keyhole-mode laser welding for variou

APA, Harvard, Vancouver, ISO, and other styles

28

Lisiecki, A. "Effect of Heat Input During Disk Laser Bead-On-Plate Welding of Thermomechanically Rolled Steel on Penetration Characteristics and Porosity Formation in the Weld Metal." Archives of Metallurgy and Materials 61, no. 1 (2016): 93–102. http://dx.doi.org/10.1515/amm-2016-0019.

Full text

Abstract:

The paper presents a detailed analysis of the influence of heat input during laser bead-on-plate welding of 5.0 mm thick plates of S700MC steel by modern Disk laser on the mechanism of steel penetration, shape and depth of penetration, and also on tendency to weld porosity formation. Based on the investigations performed in a wide range of laser welding parameters the relationship between laser power and welding speed, thus heat input, required for full penetration was determined. Additionally the relationship between the laser welding parameters and weld quality was determined.

APA, Harvard, Vancouver, ISO, and other styles

29

Zhao, Yong, Gang Yang, Keng Yan, and Wei Liu. "Effect on Formation of 5083 Aluminum Alloy of Activating Flux in FBTIG Welding." Advanced Materials Research 311-313 (August 2011): 2385–88. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.2385.

Full text

Abstract:

FBTIG(Flux Bounded TIG)welding experiments for aluminum alloy were made using five species of single-component activating fluxes, including SiO2、TiO2、CaF2、MgO, and NaCl, which was carried out to investigate the effects of flux gap and activating fluxes on weld formation. The mechanism of increasing welding penetration was analyzed linked with the change of arc shape in FBTIG. The experimental results indicate that five species of single-component activating fluxes can increase weld penetration obviously. Specifically, SiO2 can increase weld penetration remarkably. When flux gap is 4mm, the D/W

APA, Harvard, Vancouver, ISO, and other styles

30

Sugitani, Y., Y. Kanjo, and Y. Kanjo. "Simultaneous control of penetration depth and bead height by controlling multiple weld parameters." Welding International 4, no. 3 (1990): 194–99. http://dx.doi.org/10.1080/09507119009447705.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Go, Bum-su, Hyeonjeong You, Hee-seon Bang, and Cheolhee Kim. "Penetration Depth Modeling and Process Parameter Maps for Laser Welds Using Machine Learning." Journal of Welding and Joining 39, no. 4 (2021): 392–401. http://dx.doi.org/10.5781/jwj.2021.39.4.7.

Full text

Abstract:

Penetration control is an important factor in determining the weld quality in keyhole mode laser welding, which enables deep penetration. In this study, machine learning models and neural network models were developed by using 380 published welding data which were constructed for steel base metals under the following welding conditions: a laser power of 0.3-16.7 kW, a welding speed of 0.3-20.0 m/min, and a bead diameter of 0.05-0.78 mm. A machine learning model SVM (supported vector machine) could accurately predict the penetration depth with a coefficient of determination, R2 of 0.95. A shall

APA, Harvard, Vancouver, ISO, and other styles

32

Lin, Hsuan Liang, Hung Wei Juang, and Jia Ching Yan. "Effect of Activating Flux and Welding Parameters on Performance of Aluminum Alloy Weldment in GTA Welding Process." Applied Mechanics and Materials 117-119 (October 2011): 1900–1904. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.1900.

Full text

Abstract:

The purpose of this work was to investigate the effect of activating fluxes and welding parameter to the penetration and depth-to-width ratio (DWR) of 6061 aluminum alloy welds. Bead-on-plate argon gas tungsten arc (GTA) welding process was made on 6061 aluminum alloy of plate without filling metals. The activating fluxes used in the experiment were CaO, ZnO, SiO2, TiO2, Al2O3, Cr2O3, CaF2 and Na2CO3. Based on the higher penetration of weld bead and welding arc voltage, four fluxes were selected to create three new mixtures using 50% of each original fluxes. The mixed fluxes were used to inves

APA, Harvard, Vancouver, ISO, and other styles

33

Liu, Jun, Jun Hui Dong, and K. Shinozaki. "Microstructures and Properties of Fiber Laser Welded ACM522 Magnesium Alloy Joint." Materials Science Forum 610-613 (January 2009): 911–14. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.911.

Full text

Abstract:

The microstructure, mechanical properties, hardness, rules and mechanism of various parameters on formation of weld bead of Mg alloy ACM522 using a fiber laser welding were investigated. The results showed that sound welds without major defects could be produced and the mechanical properties of welding joints were good. With the increase of laser power, the penetration depth and bead width of the weld bead all increased. The mechanism of welding transformed from the conduction welding mode to the deep penetration welding mode and the weld beads aspect ratio became higher with the increase of h

APA, Harvard, Vancouver, ISO, and other styles

34

Vasantharaja, P., and M. Vasudevan. "Optimization of A-TIG welding process parameters for RAFM steel using response surface methodology." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 232, no. 2 (2015): 121–36. http://dx.doi.org/10.1177/1464420715619192.

Full text

Abstract:

In the present work, the optimization of Activated TIG (A-TIG) welding process parameters to achieve the desired weld bead shape parameters such as depth of penetration, bead width, and heat-affected zone (HAZ) width have been carried out using response surface methodology (RSM). The main problem faced in fabrication of weld joints is the selection of optimum combination of input variables for achieving required quality of welds. This problem can be solved by development of mathematical model and execution of experiments by RSM. Central composite design of RSM has been used to generate the des

APA, Harvard, Vancouver, ISO, and other styles

35

Khuenkaew, Teerawut, and Kannachai Kanlayasiri. "Selection of electrode tips for the resistance spot welding of dissimilar stainless steels." MATEC Web of Conferences 192 (2018): 01007. http://dx.doi.org/10.1051/matecconf/201819201007.

Full text

Abstract:

This research sought to resolve the issue of electrode tip selection used in the resistance spot welding for two different stainless steel grades under otherwise identical welding parameters: SUS316 and SUS425. The study used a full fractional design in order to perform the analysis of the variables involved, while the quality of the weld was assessed by considering the indentation depth, penetration, and nugget diameter. The results of the study described the nugget diameter and penetration for all welds with the various different electrode tips which met the specified requirements of the cus

APA, Harvard, Vancouver, ISO, and other styles

36

Chmelíčková, Hana, Helena Hiklová, Lukáš Václavek, Jan Tomáštík, and Radim Čtvrtlík. "CHARACTERIZATION OF TITANIUM LASER WELDS." Acta Polytechnica CTU Proceedings 27 (June 11, 2020): 145–48. http://dx.doi.org/10.14311/app.2020.27.0145.

Full text

Abstract:

Butt welding of commercially pure titanium Grade 1 and Ti6Al4V alloy sheets using a pulsed Nd:YAG laser KLS 246 - 102 LASAG were carried out to determine optimal values of pulse energy and pulse length to create completely penetrated weld. Surface peak power density of about 3.105 W.cm−2 was found as an optimal value. Weld dimensions, both face width and penetration depth, are found to be proportional to increasing energy and decreasing pulse length. Gentle sagging and root penetration were revealed by means of contact surface profilometry. The nanohardness tests on transverse cross-sections d

APA, Harvard, Vancouver, ISO, and other styles

37

Bates, B. E., and D. E. Hardt. "A Real-Time Calibrated Thermal Model for Closed-Loop Weld Bead Geometry Control." Journal of Dynamic Systems, Measurement, and Control 107, no. 1 (1985): 25–33. http://dx.doi.org/10.1115/1.3140703.

Full text

Abstract:

A distributed source conduction model is presented as a means for prediction and control of weld width and depth. Model inputs of arc efficiency and distribution are continuously calibrated by on-line comparison of predicted topside temperatures to measured profiles, giving low errors in weld size prediction. The technique is intended for closed-loop control of MIG and TIG partial penetration welds from topside measurements.

APA, Harvard, Vancouver, ISO, and other styles

38

Tam, A. S., and D. E. Hardt. "Weld Pool Impedance for Pool Geometry Measurement: Stationary and Nonstationary Pools." Journal of Dynamic Systems, Measurement, and Control 111, no. 4 (1989): 545–53. http://dx.doi.org/10.1115/1.3153090.

Full text

Abstract:

The most elusive quantity in describing weld pool geometry is the depth, since it cannot be directly observed; yet it is the most important quantity to be regulated during welding. This paper addresses the problem of depth feedback measurement for full penetration welds, where the objective is to completely melt the cross section. It has been demonstrated that the existence and size of a full penetration weld can be detected by measuring the mechanical impedance of the resulting weld pool. Previous work in modeling this phenomenon has been limited to stationary welds, and experiments have eith

APA, Harvard, Vancouver, ISO, and other styles

39

Šimeková, Beáta, Ingrid Kovaříková, and Koloman Ulrich. "Microstructure and Properties of Plasma Arc Welding with Depth Penetration Keyhole SAF 2205 Duplex Stainless Steel." Advanced Materials Research 664 (February 2013): 578–83. http://dx.doi.org/10.4028/www.scientific.net/amr.664.578.

Full text

Abstract:

The microstructure and properties of plasma arc welding (PAW) with depth penetration keyhole SAF 2205 duplex stainless steel were examined. High-quality, full-penetration welds were successfully produced in the duplex stainless steel by plasma arc welding (PAW) with depth penetration keyhole. The base material had a microstructure consisting of the ferrite matrix with austenite islands. Ferrite content was held between 60 and 70% throughout the weld. The number grain of the ferrite and austenite phases caused increase in hardness and strength within the stir zone. In the evaluation experiment

APA, Harvard, Vancouver, ISO, and other styles

40

Chokkalingham, S., M. Vasudevan, S. Sudarsan, and N. Chandrasekhar. "Predicting weld bead width and depth of penetration from infrared thermal image of weld pool using artificial neural network." Insight - Non-Destructive Testing and Condition Monitoring 54, no. 5 (2012): 272–77. http://dx.doi.org/10.1784/insi.2012.54.5.272.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Loureiro, Altino, and A. Rodrigues. "A-TIG Welding of a Stainless Steel." Materials Science Forum 587-588 (June 2008): 370–74. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.370.

Full text

Abstract:

The aim of this research is the development of activating fluxes to improve weld bead geometry and increase weld penetration depth in austenitic stainless steels. The effect on bead geometry of two home-made fluxes, composed of titanium and aluminium oxides, was studied, in combination with two shielding gases, respectively Argon and an Argon/Helium mixture. A significant increase in penetration was obtained in welds done with the Ti based activating flux across the whole range of welding currents for both shielding gases, which was not the case for welds performed with the Al based flux. A de

APA, Harvard, Vancouver, ISO, and other styles

42

Xu Sai, 许赛, 杨立军 Yang Lijun, 徐书峰 Xu Shufeng, 黄一鸣 Huang Yiming, 赵圣斌 Zhao Shengbin, and 李珊珊 Li Shanshan. "Relation between Plasma Electrical Signal Oscillation and Weld Depth in Laser Deep Penetration Welding." Chinese Journal of Lasers 47, no. 1 (2020): 0102006. http://dx.doi.org/10.3788/cjl202047.0102006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Gu, Xiaoyan, Yuchen Liu, Wenhang Li, Yujun Han, and Kai Zheng. "Physical Characteristics of Coupled Plasma and Its Influence on Weld Formation in Hybrid Laser-Double-Arc Welding." Materials 12, no. 24 (2019): 4207. http://dx.doi.org/10.3390/ma12244207.

Full text

Abstract:

Hybrid laser-double-arc welding (HLDAW) is an efficient welding method with multi-heat sources comprised of two arcs and a laser beam, which is an intricate process with much randomness and uncertainty due to the mutual effect between multi-plasmas. Compared with double-arc welding (DAW), HLDAW can generally obtain a more stable welding process and deeper weld penetration, which is directly affected by the synergistic effect of multiple heat sources; however, the mechanism has not been systematically studied. In this study, the multi-information analysis method is adopted to study the distribu

APA, Harvard, Vancouver, ISO, and other styles

44

Reza Ghazvinloo, Hamid, Abbas Honarbakhsh-Raouf, and Nasim Shadfar. "Effects of robotic CO2 arc welding variables on penetration and microstructure of weld in C-80 grade steel." Material Science Research India 7, no. 1 (2010): 67–75. http://dx.doi.org/10.13005/msri/070107.

Full text

Abstract:

Generally, the quality and properties of a weld joint is strongly influenced by welding variables during process. In order to achieve an ideal weld, it is important attention to bead geometry and microstructure evolution of weld metal. The effect of process variables on penetration and microstructure of C-80 steel joints produced by robotic CO2 arc welding was studied in present work. Different samples were produced by employing arc voltages of 23, 25 and 27 V, welding currents of 100, 110 and 120 A and welding speeds of 42, 62 and 82 cm/min. After welding process, geometric measurements were

APA, Harvard, Vancouver, ISO, and other styles

45

Gopalakrishna Pillai, M., P. S. Sreejith, R. K. Gupta, Bhanu Pant, P. C. Harikumar, and N. Venugopal. "Effect of EBW Parameters on Weldment Quality of Ti6Al4V Alloy." Materials Science Forum 830-831 (September 2015): 249–52. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.249.

Full text

Abstract:

The penetration characteristics of EBW are primarily dependent on the main beam current (Iw), potential difference between the cathode and anode (voltage, V) and the welding speed (S). There are other influencing parameters like weld focus current (If), welding gun to work distance (GW) and beam oscillation.In the present study, the effect of work distance on focus current and on penetration of Ti6Al4V weld is studied using a 60kV, 30kW EB welding machine. Weld focus current is measured over a range of work distance and variation in its pattern is studied. Similarly, the variation of depth of

APA, Harvard, Vancouver, ISO, and other styles

46

Banerjee, P., S. Govardhan, H. C. Wikle, J. Y. Liu, and B. A. Chin. "Infrared Sensing for On-Line Weld Geometry Monitoring and Control." Journal of Engineering for Industry 117, no. 3 (1995): 323–30. http://dx.doi.org/10.1115/1.2804337.

Full text

Abstract:

This paper describes a method for on-line weld geometry monitoring and control using a single front-side infrared sensor. Variations in plate thickness, shielding gas composition and minor element content are known to cause weld geometry changes. These changes in the weld geometry can be distinctly detected from an analysis of temperature gradients computed from infrared data. Deviations in temperature gradients were used to control the bead width and depth of penetration during the welding process. The analytical techniques described in this paper have been used to control gas tungsten arc an

APA, Harvard, Vancouver, ISO, and other styles

47

Ghanty, P., M. Vasudevan, D. P. Mukherjee, et al. "Artificial neural network approach for estimating weld bead width and depth of penetration from infrared thermal image of weld pool." Science and Technology of Welding and Joining 13, no. 4 (2008): 395–401. http://dx.doi.org/10.1179/174329308x300118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Chandrasekhar, N., M. Vasudevan, A. K. Bhaduri, and T. Jayakumar. "Intelligent modeling for estimating weld bead width and depth of penetration from infra-red thermal images of the weld pool." Journal of Intelligent Manufacturing 26, no. 1 (2013): 59–71. http://dx.doi.org/10.1007/s10845-013-0762-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Katayama, Seiji, Yasuaki Naito, Satoru Uchiumi, and Masami Mizutani. "Laser-Arc Hybrid Welding." Solid State Phenomena 127 (September 2007): 295–300. http://dx.doi.org/10.4028/www.scientific.net/ssp.127.295.

Full text

Abstract:

Hybrid welding of stainless steels or aluminum alloys was performed using the heat sources of YAG laser and TIG, or YAG laser and MIG, respectively. The effects of welding conditions and melt flows on penetration depth, weld bead geometry and bubble/porosity formation were investigated with X-ray transmission real-time observation method. A great effect of melt flows on penetration depth and weld geometry was consequently confirmed. Concerning porosity suppression in YAG-TIG hybrid welding of stainless steel, no bubble generation was attributed to no porosity formation. On the other hand, it w

APA, Harvard, Vancouver, ISO, and other styles

50

French, Richard, Hector Merin-Reyes, and Will Yeadon. "A Feasibility Study Comparing Two Commercial TIG Welding Machines for Deep Penetration." MATEC Web of Conferences 269 (2019): 01004. http://dx.doi.org/10.1051/matecconf/201926901004.

Full text

Abstract:

Developing a deep penetration TIG welding technique to produce welds of equal quality to the industrial standard practise of laser-based welding techniques has the potential to lower production complexity and cost. Higher currents levels are required to increase penetration depth in conventional TIG welding but this results in excessive weld bead width amongst other detrimental effects. However, through K-TIG and A-TIG techniques these detrimental effects can be circumnavigated. Prior experimental work on weld pool dynamics in conventional TIG welding in higher current regions has been sparse

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!