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Relevant bibliographies by topics / Weld penetration depth

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Academic literature on the topic 'Weld penetration depth'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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Journal articles on the topic "Weld penetration depth"

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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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.

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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

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Dissertations / Theses on the topic "Weld penetration depth"

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Stone, David Andrew. "Frontface monitoring of weld penetration." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329510.

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Kita, Akio. "Measurement of Weld Penetration Depth Using Non-Contact Ultrasound Methods." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7234.

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Gas Metal Arc welding (GMAW) is one of the primary techniques used to join structural components together. The major obstacle precluding full closed-loop control of GMAW has been the lack of robust techniques using non-destructive and non-contact sensors capable of operating in high temperature and harsh environments typical of GMAW processes. This research uses laser generated ultrasound and electromagnetic acoustic transducer (EMAT) to receive ultrasound. Previous research has focused on ultrasonic shear wave time of flight (TOF) techniques to determine weld penetration depth, a key measu

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Rogge, Matthew Douglas. "In-process sensing of weld penetration depth using non-contact laser ultrasound system." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31698.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Ume, Charles; Committee Member: Chen, Ye-Hwa; Committee Member: Michaels, Jennifer; Committee Member: Sadegh, Nader; Committee Member: Vachtsevanos, George. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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Mi, Bao. "Implementation of Fiber Phased Array Ultrasound Generation System and Signal Analysis for Weld Penetration Control." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5275.

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The overall purpose of this research is to develop a real-time ultrasound based system for controlling robotic weld quality by monitoring the weld pool. The concept of real-time weld quality control is quite broad, and this work focuses on weld penetration depth monitoring and control with laser ultrasonics. The weld penetration depth is one of the most important geometric parameters that define the weld quality, hence remains a key control quantity. This research focuses on the implementation and optimization of the laser phased array generation unit and the development of signal analysis alg

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Books on the topic "Weld penetration depth"

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Nishio, T., Y. Hata, S. Okayasu, et al. Scanning SQUID microscope study of vortex states and phases in superconducting mesoscopic dots, antidots, and other structures. Edited by A. V. Narlikar and Y. Y. Fu. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199533053.013.11.

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This article investigates vortex states and phases in superconducting mesoscopic dots, antidots, and other structures using a scanning superconducting quantum interference device (SQUID) microscope. It begins with an introduction to the phenomenology of superconductivity and the fundamentals of vortex confinement in mesoscopic superconductors. It then provides a background on the SQUID microscope, followed by a discussion of how a high-resolution scanning SQUID microscope was developed. It also describes what the scanning SQUID microscopy revealed about quantized flux in superconducting rings,

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Clasper, J. Blast and ballistic injury. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.012006.

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♦ Unlike civilian trauma most ballistic injuries are due to penetrating wounds♦ Although weapons may change, the principles of treatment remain the same, prevent death by stopping bleeding, and prevent infection by removing dead and foreign material♦ The severity of the injury is related to the energy transfer to the tissues as well as the specific structures injured♦ Mass casualty situations may require Triage of the casualties.

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Deletis, Vedran, Francesco Sala, and Sedat Ulkatan. Transcranial electrical stimulation and intraoperative neurophysiology of the corticospinal tract. Edited by Charles M. Epstein, Eric M. Wassermann, and Ulf Ziemann. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780198568926.013.0008.

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Transcranial electrical stimulation is a well-recognized method for corticospinal tract (CT) activation. This article explains the use of TES during surgery and highlights the physiology of the motor-evoked potentials (MEPs). It describes the techniques and methods for brain stimulation and recording of responses. There are two factors that determine the depth of the current penetrating the brain, they are: choice of electrode montage for stimulation over the scalp and the intensity of stimulation. D-wave collision technique is a newly developed technique that allows mapping intraoperatively a

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Lim, Joanna C., Catherine Goodhue, Elizabeth Cleek, Erik R. Barthel, Barbara Gaines, and Jeffrey S. Upperman. Pediatric Trauma. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199918027.003.0019.

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Pediatric trauma is the leading cause of death in children 1 through 14 years old. This chapter includes key information focusing on initial evaluation, triage, and stabilization of children with blunt and penetrating trauma as well as burns (and the “rule of 9s”). The authors discuss specific injuries, including those to the head (traumatic brain injury), thorax, and abdomen; genitourinary area; and orthopedic/long-bone and nonaccidental trauma. Caring for injured children is best performed using advanced trauma life support protocols during the initial assessment. Protocol-driven examination

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Book chapters on the topic "Weld penetration depth"

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Chokkalingham, S., N. Chandrasekhar, and M. Vasudevan. "Artificial Neural Network Modeling for Estimating the Depth of Penetration and Weld Bead Width from the Infra Red Thermal Image of the Weld Pool during A-TIG Welding." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-17298-4_28.

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Acherjee, Bappa. "FEM-ANN Sequential Modelling of Laser Transmission Welding for Prediction of Weld Pool Dimensions." In Non-Conventional Machining in Modern Manufacturing Systems. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-6161-3.ch012.

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In this chapter, a sequential modeling approach has been applied for modeling of laser transmission welding process using finite element method (FEM) and artificial neural network (ANN) technique to predict the weld pool dimensions in a shorter time frame. The scripting language, APDL (ANSYS® Parametric Design Language), is used to develop the three-dimensional FE model. During preprocessing, all the major physical phenomena of laser transmission welding process are incorporated into the model physics. Based on the temperature field predicted by the model, the weld pool dimensions (i.e., weld width and weld penetration depth) are calculated. The weld dimensions predicted by the developed FE model are further used for training a neural network model. It is found from the results of test data sets that the developed ANN model can predict the outputs with significant accuracy and takes less prediction time, which in turn saves time, cost, and the efforts for performing experiments.

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Sobih, Mohamed, and Zuhair Elseddig. "Electron Beam Welding of Aluminum Alloys." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000300.

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Aluminum alloys are the subject of increasing interest in the automotive industry, as well as the aircraft industry, aiming to reduce the weight of components and also allowing a profit in term of energy saving. In assembly process, riveting has been widely used in the aircraft industry, whereas welding seems to be available in the car industry in the case of aluminum alloys. Nevertheless, conventional fusion welding can generate defects, such as gas porosity, oxide inclusions, solidification cracking (hot tearing), reduced strength in both the weld, and heat-affected zone (HAZ), which could limit its development. Electron beam welding (EBW) has unique advantages over other traditional fusion welding methods due to high energy density, deep penetration, large depth-to-width ratio, and small HAZ. EBW has been developed for many years and is being increasingly implemented in various industrial applications. In many cases, it has proven to be an efficient method for joining difficult to weld materials. One of the major problems associated with the EBW is how to select a proper combination of the process parameters because improper selection of these parameters causes defects in the weld joint, which could seriously influence the weld mechanical properties. This work introduces an overview of the EBW process, its parameters, process simulation, process optimization, and finally characterization of the electron beam weld joint of 2219 aluminum alloy.

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Vincent, Warwick F. "3. Sunlight and motion." In Lakes: A Very Short Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198766735.003.0003.

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Water transparency powerfully indicates the state of health of a lake ecosystem. The water’s turbidity defines the physical habitat characteristics of lakes, strongly influencing their chemistry, biology, and ecosystem services. ‘Sunlight and motion’ explains the methods for measuring water transparency and how the penetration of sunlight into water declines with depth. The different colours, hues, and brightness levels of lakes are due to the materials dissolved and suspended within them. The layering of different temperature water in lakes is also described. This stratification varies greatly with the seasons. Mixing of the waters is mainly due to slow waves at and just below the surface as well as deeper currents.

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Kumlu, Deniz, and Isin Erer. "Clutter Removal Techniques in Ground Penetrating Radar for Landmine Detection." In Operations Research for Military Organizations. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-5513-1.ch016.

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Ground-penetrating radar (GPR) is a popular technique for landmine detection and widely used by military organizations for landmine clearance purposes. It is well known that GPR is greatly affected by clutter during the landmine detection process. The clutter can be reasoned by soil properties, depth of the buried landmine, different surface types, and ingredient of landmine materials. Thus, the detection of landmine becomes challenging, and clutter removal algorithm must be applied prior to any landmine detection scheme in GPR. In order to remove clutter, various algorithms are proposed, and they can be mainly separated into two groups such subspace-based methods and multiresolution-based methods. This chapter focuses on the performance analysis of these clutter removal algorithms on the simulated dataset that is created by using the gprMax simulation software where it contains four different challenging scenarios.

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Baporikar, Neeta. "Fintech Challenges and Outlook in India." In Innovative Strategies for Implementing FinTech in Banking. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3257-7.ch008.

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Fintech refers to the novel processes and products that become available for financial services due to the digital technological advancements. Fintech includes technologically enabled financial innovation leading to new business models, applications, processes, or products with an associated material effect on financial markets, institutions, and financial services. India is transitioning into a dynamic ecosystem offering Fintech start-ups a platform to grow into billion-dollar unicorns. From tapping new segments to exploring foreign markets, Fintech in India is pursuing multiple targets. The traditionally cash-driven Indian economy has responded well to the Fintech opportunity, primarily triggered by a surge in e-commerce, and Smartphone penetration. However, India's growth is still not comparable in scale to its global counterparts but is stacked well, due to a strong talent pipeline of the tech workforce. Hence, adopting an exploratory approach, based on in-depth literature review, the chapter aims to identify the challenges and deliberate on the outlook for Fintech in India.

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Tai, Zixue, and Haifang Zeng. "Mobile Games in China." In Global Media Convergence and Cultural Transformation. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-037-2.ch018.

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This chapter presents a critical analysis of China’s nascent but fast-evolving mobile game market. Through a penetrating examination of the historical evolution of the market from the late 1990s to the dawn of the 3G era, it offers insight on the changing dynamics of interplay as well as major trends of concentration and internationalization among key sectors of the Chinese mobile market structure. By casting findings in the comparative lenses of major global mobile markets in the United States, Japan and South Korea, the chapter contributes to an in-depth understanding of the universalizing features and the peculiarities of China’s mobile games and gamers.

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Ginor, Isabella, and Gideon Remez. "What Triggered Kavkaz? Refuting Heikal’s Version." In The Soviet-Israeli War, 1967-1973. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190693480.003.0009.

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Conventional historiography holds that the massive deployment of a regular Soviet air-defense division and other units in Egypt, codenamed “Operation Kavkaz,” was initiated in January 1970. After Israel’s new Phantom jets began on 7 January a campaign of “deep-penetration” bombings in and around Cairo, a desperate Nasser flew secretly to Moscow and persuaded a reluctant Soviet leadership to undertake the protection of Egypt’s skies. This account is based almost exclusively on the version published by Nasser’s propagandist Mohammed Heikal. New evidence calls into serious question whether such a visit took place at all. It proves conclusively that the decision to activate “Kavkaz” was taken, the formations and command structure assembled, and the first detachments dispatched in the summer and autumn of 1969, well before the “depth bombings” began, in response to previous Israeli demonstrations of air superiority in the War of Attrition.

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Best, Gavin T., Melissa A. Nikolaidis, and Yi Deng. "Trauma and Critical Care During Pregnancy." In Obstetric Anesthesia Practice. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780190099824.003.0024.

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Trauma is the leading nonobstetric cause of death in pregnant patients, and parturient women have unique physiologies, pathologies, and considerations. The aim of this chapter is to discuss these differences and address ways to treat these patients immediately following trauma and in the critical care setting. The chapter addresses blunt, penetrating, and burn trauma in the pregnant patient. Additionally, it will highlight several common critical pathologies seen in pregnancy such as eclampsia; hemolysis, elevated liver enzymes, and low platelets syndrome; and acute respiratory distress syndrome, as well as some pre-existing conditions made more complicated by the pregnant state.

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Manley, Geoffrey T., John K. Yue, Hansen Deng, Ethan A. Winkler, John F. Burke, and Catherine Suen. "Pathophysiology of traumatic brain injury." In Oxford Textbook of Neurological Surgery, edited by Ramez W. Kirollos, Adel Helmy, Simon Thomson, and Peter J. A. Hutchinson. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780198746706.003.0041.

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This chapter provides summative information on the biomechanics, classification, and metabolism of traumatic brain injury (TBI). Impact, impulse, static/quasistatic loading, and related biomechanical sequelae following rotational shear and strain are discussed. Morphological classifications across extradural, acute/chronic subdural, subarachnoid, and intraventricular haemorrhages, as well as cerebral contusions and axonal injuries, are characterized and correlated with injury severity. Management options and implications for penetrating TBI and mild TBI/concussion are described. Cerebral metabolism including pressure/viscosity, CO<sub>2</sub> reactivity, and autoregulation are explained in detail to provide for in-depth exploration of a spectrum of secondary injury cascades, encompassing glutamatergic excitotoxicity, autoregulatory loss, and the pressure reactivity index, flow disturbances, elevated intracranial pressure, cortical spreading depression and seizures/epilepsy. Beta-amyloid deposition in response to TBI, and genetic susceptibilities to poor recovery are covered. Current developments to standardize TBI classification systems, establish evidentiary benchmarks for quality of care, and accelerate advances in diagnosis and prognosis are highlighted.

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Conference papers on the topic "Weld penetration depth"

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Mahto, Raju Prasad, and Surjya K. Pal. "Friction Stir Lap Welding of Thin AA6061-T6 and AISI304 Sheets at Different Values of Pin Penetrations." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6590.

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The present paper focuses on the influence of pin penetration on joint strength achieved in friction stir lap welding between AA6061-T6 and AISI304. Penetration of pin into the steel substrate, which is placed below the aluminium, has an influencing role in achieving a good weld. Beyond a certain depth of penetration of pin into the steel, non-uniform thicker intermetallic compound and the weld defects have been found. Defects were found to be located in the stir zone. Thus, an excessive penetrations of the pin into the steel matrix has been produced a detrimental effect to the weld strength.

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Arul, Senthil, Grant H. Kruger, Scott F. Miller, Tsung-Yu Pan, and Albert J. Shih. "Spot Friction Weld Strength Improvement Through In-Process Metal Matrix Formation." In ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72502.

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The effects of metal matrix composite (MMC) on the joint strength of Spot Friction Welded (SFW) specimens made of Al 1100 and Al 6111 alloys are studied. The MMC-SFW joints were created by sandwiching metal reinforcing powder (&lt;75μm mesh) between the upper (1.3mm thick) and lower (1.5mm thick) Al coupons, at the center of the SFW joint. To maximize the heat input into the specimen, a Zirconium (ZrO2) ceramic anvil was used. Depth of penetration of the tool played an important role in determining the distribution of the reinforcing material within the MMC during plastic mixing in the SFW

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Yang, Lei, and I. Charles Ume. "Inspection of simulated weld penetration depth using laser-generated Lamb waves and wavelet signal processing." In 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Volume 34. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4914753.

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Ju, Xiaochen, Xiaogang Liu, Zhibin Zeng, and Xinxin Zhao. "Fatigue study on rib-to-deck welded joint considering weld penetration rate." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0675.

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<p>The U-shaped rib-to-deck welded joint in orthotropic steel deck is a part with multiple fatigue cracks. The penetration rate which is the ratio of penetration depth to U-shaped rib thickness has an important influence on fatigue performance of partial joint penetration (PJP) welds. In this study, the influence of penetration rate on the fatigue performance of U-shaped rib-to-deck welded joints was studied. Firstly, the finite element model of U-shaped rib-to-deck welded joints with penetration rate of 65%, 75%, 85% and complete joint penetration (CJP) welds were established. The mecha

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Yuce, Celalettin, Fatih Karpat, and Nurettin Yavuz. "Influence of Heat Input on Mechanical Properties and Microstructure of Laser Welded Dissimilar Galvanized Steel-Aluminum Joints." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6419.

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The hybrid structures of aluminum-steel have been increasingly used for body-in-white constructions in order to reduce weight and green gas emissions. Obtaining acceptable joints between steel and aluminum required a better understanding of welding metallurgy and their effects on the resultant mechanical properties as well as the microstructure of the joints. In this research, the fiber laser welding of zero-gap galvanized steel and aluminum alloy in an overlapped configuration was carried out. The influence of heat input on the weld bead dimension, microstructural and mechanical properties of

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Özmert, Alp, Paul Neisser-Deiters, and Alexander Drenker. "Detectability of penetration depth based on weld pool geometry and process emission spectrum in laser welding of copper." In SPIE Photonics Europe, edited by Jacob I. Mackenzie, Helena JelÍnková, Takunori Taira, and Marwan Abdou Ahmed. SPIE, 2014. http://dx.doi.org/10.1117/12.2051662.

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Sun, Z., and D. Pan. "Utilization of Process Monitoring in Ti Alloy Welding." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41376.

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Titanium alloys have found increased applications in various industrial sectors. One of the critical issues in quality control is the weld penetration during welding. In the present paper, tungsten inert gas (TIG) welding was used to weld 8.0-mm thick Ti-6Al-4V alloy plates with and without an activating flux. The effect of the activating flux on Ti alloy welding was investigated. A data acquisition system was used to monitor the welding current and voltage signals during welding. These signals were then correlated to the weld penetration information. Results show that by applying the activati

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Chianese, Giovanni, Pasquale Franciosa, Jonas Nolte, Darek Ceglarek, and Stanislao Patalano. "Photodiode-Based In-Process Monitoring of Part-to-Part Gap and Weld Penetration Depth in Remote Laser Welding of Copper-to-Steel Battery Tab Connectors." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-63321.

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Abstract This paper addresses in-process monitoring of part-to-part gap and weld penetration depth using photodiode-based signals during Remote Laser Welding (RLW) of battery tab connectors. Photodiode-based monitoring has been largely implemented for structural welds due to its relatively low cost and ease of automation. However, the application of photodiode-based monitoring to RLW of thin foils of dissimilar metals for battery tab connectors remains an unexplored area of research and will be addressed in this paper. Motivated by the high variability during the welding process of thin foils

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Mourad, Abdel-Hamid I., Khalifa H. Harib, and Aly El-Domiaty. "Fracture Behavior of Friction Stir Spot Welded Joint." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25986.

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The fracture behaviour of lap-shear joints manufactured by friction stir spot welding (FSSW) technique is examined in this paper. Two aluminium sheets of 2.8 mm thickness were welded using different process parameters to form a lap-shear joint. Special tool was designed and fabricated for the stir-spot welding process. Tensile-shear tests were performed to determine the tensile-shear load bearing capacity and toughness of the weld. The stress intensity factor and the J-integral around a weld are determined in order to characterize the fracture behavior. The effect of different main process con

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Zhou, Jun, Mohammad S. Davoud, and Hai-Lung Tsai. "Investigation of Transport Phenomena in Three-Dimensional Gas Metal Arc Welding of Thick Metals." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32686.

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Arc welding is generally used to join thick metals in many engineering applications. However, poor penetration often occurs due to arc heat diffusion into the base metal. Hence, arc welding of thick metals normally requires grooving and/or preheating of the base metal and sometimes requires multiple passes for very thick metals or metals with high conductivity, such as aluminum alloys. In gas metal arc welding of thick metals with grooves and preheating, complicated melt flow and heat transfer are caused by the combined effect of droplet impingement, gravity, electromagnetic force, surface ten

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Reports on the topic "Weld penetration depth"

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Gomez Garcia, Olga, Henry Mooney, David Rosenblatt, et al. Caribbean Quarterly Bulletin: Volume 10: Issue 1, May 2021. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003265.

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Countries around the world have endured over a year of extreme uncertainty in the context of the COVID-19 crisis, and economies in the Caribbean have suffered more than most. But with the increasing availability of vaccines and prospects for a resumption of international travel, light is emerging at the end of the Pandemic tunnel. With this in mind, The Inter-American Development Bank Caribbean1 Departments most recent Quarterly Bulletin reviews the latest available information regarding the crisis impacts on citizens, their economies, and key factors that will determine the speed and depth of

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