Relevant bibliographies by topics / Welder

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Welder'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Welder"

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Kuoch, Seamkong, Eakkachai Warinsiriruk, and Sutep Joy-A-Ka. "Digitalized Evaluation of Welder Skill by using Cyclogram Characteristics." MATEC Web of Conferences 269 (2019): 07004. http://dx.doi.org/10.1051/matecconf/201926907004.

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This paper proposes a new evaluation method for welder skill in Gas Metal Arc Welding (GMAW) process in term of studying the natural hand-movement that affect the signal processing. Weld quality of GMAW generally depends on welder skill to maintain the uniform of hand movement. Therefore, the welder skill is considered as the critical point to maintain the weld quality. Hence, welding current and voltage signal could be an alternative way for monitoring and assessing the skill of welder based on the signal variation of the welding process. This research defines in two stages, first is the physical-simulation using robot welding Fanuc Arc Mate 100iB and monitoring the signal using Cyclogram technique. Second is comparing the Cyclogram characteristic of robot welding and manual welder. By using the data acquired, the characteristic of Cyclogram was analyzed by varying Torch angle change (W1) and Torch-height change (W2) to investigate the signal processing. Furthermore, the data of current and voltage were generated as a quantitative method to determine the size of Cyclogram. The results show that the method capable of differentiating the two beginner welders compare to the robot welding performance based area of Cyclogram characteristic. Finally, the Cyclogram could be a novel tool for monitoring and evaluating the welder skill with high sensitivity to detect hand motion.
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Krisak, Len. "Welder." English Journal 89, no. 4 (March 2000): 126. http://dx.doi.org/10.2307/821999.

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Liang, Zhen Xin, Jian Xun Zhang, and Yi Pei. "Investigation on the Simulation System of GTAW Operation Based on Virtual Reality Technology." Materials Science Forum 575-578 (April 2008): 709–15. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.709.

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Gas shield Tungsten Arc Welding (GTAW) is an important process method in material processing. Welding quality is vital for the product quality. It is an important way to improve the quality of product by raising the personal capability and handling technique of the welder. In this investigation, because of the deficiency in classic welding training scheme, some new technology were introduced into classic welding training field to improve the efficiency of welding training and reduce training cost. A computer simulation system that can be used to train primary welders was developed combined with three-dimensional stereoscopic vision and API interface of OpenGL, virtual reality is the kernel technology. In this system, welders were trained not in the real operating environment but in the virtual environment where has experience personally effect that simulated by computer. There is unnecessary with welding material and welding energy in virtual environment simulated by computer. It has highly automatic and intelligent and lower required to welding teachers. It is healthy to welder because that intensive arc and harmful dust are disappeared in virtual environment. It is a lower cost and high efficiency method by use of virtual training system to training new welder.
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Hariri, Azian, Abdul Mutalib Leman, and Mohammad Zainal M. Yusof. "Determination of Important Parameters and Technical Characteristic for Welding Fumes Index Development by Using QFD Approach." Applied Mechanics and Materials 315 (April 2013): 744–48. http://dx.doi.org/10.4028/www.scientific.net/amm.315.744.

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This paper discussed on the determination of important parameters and technical characteristic for the development of a welding fumes index by using Quality Function Deployment (QFD) approach. Welding fumes index is developed with the objective to enhance the welding workplace safety and health. Index simplifies complex health-hazard issues of welding fumes to be comprehended easily by the employees. Questionnaires on welder desire to know the various welding fumes health effects that exist in their workplace were distributed among welders of a selected automotive assembly lines in the state Pahang, Malaysia, during a pilot case study. Results of the questionnaires show that all the customer requirements (irritants effect, sensitizer effects, respiratory system effect, systemic toxin effect, reproductive toxins effect, carcinogen effect, mixture effect) were equally important to the welders. The relationship between the customer (welder) requirement and technical characteristic were established whereby important technical characteristics were shortlisted. Development of welding fumes index according to employees demand will increase the knowledge and awareness on occupational safety and health among employees. The paper provides the main idea on development of welding fumes index taking into consideration the needs of the customer i.e. welder.
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Zhang, Yongbao, Xiang Wu, Jingqi Gao, Jianwu Chen, and Xun Xv. "Simulation and Ergonomic Evaluation of Welders’ Standing Posture Using Jack Software." International Journal of Environmental Research and Public Health 16, no. 22 (November 7, 2019): 4354. http://dx.doi.org/10.3390/ijerph16224354.

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Ergonomics research strives to make workers’ labor more efficient, safer, and more comfortable. Therefore, six digital humans and welding torch model were built and evaluated based on the Jack software in order to improve the ergonomics of welders’ standing postures. Three sets of standing welding actions were designed: walking, raising arm, and contracting arm. Through the Lower Back Analysis, Ovako Working Posture Analysis, Comfort Assessment, and Rapid Upper Limb Assessment, this paper evaluated the optimum range of the weight of the welding torch, the upper limb posture, and the neck posture of the welder. Firstly, the results show that Chinese welders should not use a welding torch with a weight of more than 6 kg when standing up. Secondly, for adult males in the 5th, 50th, 95th percentile of body size, the best operating distance is 321 mm, 371 mm, and 421 mm, respectively, and the best operating height is 1050 mm, 1100 mm, and 1150 mm, respectively; for females in the same percentiles, the optimal operating distance is 271 mm, 321 mm, and 371 mm, respectively, and the optimal operating height is 1000 mm, 1050 mm, and 1100 mm, respectively. Moreover, the horizontal and vertical rotation angle of the welder’s neck should not exceed 15° and 8.7°. The adjustment strategy not only has a positive effect on improving welders’ operational posture and preventing fatigue and injury to the welder, but it also develops research ideas for promoting safety from the perspective of ergonomics.
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Pinar, A., B. Wijnen, G. C. Anzalone, T. C. Havens, P. G. Sanders, and J. M. Pearce. "Low-Cost Open-Source Voltage and Current Monitor for Gas Metal Arc Weld 3D Printing." Journal of Sensors 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/876714.

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Arduino open-source microcontrollers are well known in sensor applications for scientific equipment and for controlling RepRap 3D printers. Recently low-cost open-source gas metal arc weld (GMAW) RepRap 3D printers have been developed. The entry-level welders used have minimal controls and therefore lack any real-time measurement of welder voltage or current. The preliminary work on process optimization of GMAW 3D printers requires a low-cost sensor and data logger system to measure welder current and voltage. This paper reports on the development of a low-cost open-source power measurement sensor system based on Arduino architecture. The sensor system was designed, built, and tested with two entry-level MIG welders. The full bill of materials and open source designs are provided. Voltage and current were measured while making stepwise adjustments to the manual voltage setting on the welder. Three conditions were tested while welding with steel and aluminum wire on steel substrates to assess the role of electrode material, shield gas, and welding velocity. The results showed that the open source sensor circuit performed as designed and could be constructed for <$100 in components representing a significant potential value through lateral scaling and replication in the 3D printing community.
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Jamrozik, Wojciech, and Jacek Górka. "Assessing MMA Welding Process Stability Using Machine Vision-Based Arc Features Tracking System." Sensors 21, no. 1 (December 25, 2020): 84. http://dx.doi.org/10.3390/s21010084.

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Arc length is a crucial parameter of the manual metal arc (MMA) welding process, as it influences the arc voltage and the resulting welded joint. In the MMA method, the process’ stability is mainly controlled by the skills of a welder. According to that, giving the feedback about the arc length as well as the welding speed to the welder is a valuable property at the stage of weld training and in the production of welded elements. The proposed solution is based on the application of relatively cheap Complementary Metal Oxide Semiconductor (CMOS) cameras to track the welding electrode tip and to estimate the geometrical properties of welding arc. All measured parameters are varying during welding. To validate the results of image processing, arc voltage was measured as a reference value describing in some part the process stability.
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Wu, Min, and Xiao Gang Xiong. "Design and Application of Energy Saving Safety Control Regulator of AC Arc Welding Machine." Advanced Materials Research 1030-1032 (September 2014): 1592–95. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.1592.

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With the rapid development of our economic in recent year, electricity supply becomes tighter gradually. As when electric welder in ballast, the loss of power is much and factor of power is low which leads to the quality of power supply is poor and accidents of electric shock occurred. In order to solve such prominent problem, we research and the design of energy saving safety control regulator of electric welding machine, it will eliminate the loss of ac welder and improve the quality of power supply, ensuring the safe of the welders. The paper proved the correctness and effectiveness of the design through the installation test at last.
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Liburdi, J., P. Lowden, and C. Pilcher. "Automated Welding of Turbine Blades." Journal of Engineering for Gas Turbines and Power 112, no. 4 (October 1, 1990): 550–54. http://dx.doi.org/10.1115/1.2906203.

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The welding of superalloys has been regarded, generally, as an art requiring the highest degree of welder skill and discipline. These highly alloyed materials are prone to micro-cracking and, in some cases, even the best welders cannot achieve satisfactory results. Now, however, advances in automation technology have made it possible to program precisely the complex airfoil shapes and the welding parameters. Consequently, turbine blades can be welded in a repeatable manner, with a minimum of heat input, resulting in better metallurgical quality both in the base metal and the weld deposit. The application of this technology to the automated welding of high-pressure compressor turbine blade tips and the refurbishment of low-pressure turbine blade shrouds are presented in this paper.
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Wicaksono, Dimas Trianggoro. "PENYEBAB TERJADINYA SUBSTANDARD PRACTICE BERDASARKAN TEORI LOSS CAUSATION MODEL PADA PENGELAS DI PT BANGUN SARANA BAJA." Indonesian Journal of Occupational Safety and Health 6, no. 3 (October 30, 2018): 298. http://dx.doi.org/10.20473/ijosh.v6i3.2017.298-310.

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Welder had important role for steel fabrication industry, otherwise the job of welder had a variously dangerous potential. The occurring of substandard practice could be prevent by identified the cause of substandard practice. The aim of this research was to study the cause of the occurring of substandard practice on welder at PT. Bangun Sarana Baja. This research was done by using cross sectional design and qualitative approach in order to describe the cause of the occurring of substandard practice on welder at PT. Bangun Sarana Baja Gresik. The respondent of this research was 20 peoples who was work as a welder at PT. Bangun Sarana Baja. The result of this research represent that 80% of welder at PT. Bangun Sarana Baja had performed standard practice. Management has given a lot of variously programs. Personal factor and job factor most of welder supported the occurring of standard practice. The conclusion of this research was most of welder at PT. Bangun Sarana Baja has performed standard practice. Substandard practice occurred because the lack of welder participation in training and the lack of experience before they worked at PT. Bangun Sarana Baja as the personal factor, the difficulty of PPE arrangement, the careless of used PPE, work not based on SOP as the job factor, and lack of control of management on compliance to make standard for each program. Keywords: substandard practice, personal factor, job factor, lack of control of management
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Dissertations / Theses on the topic "Welder"

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Davies, Edward. "Development of a hand-held multicell inverter-based ultrasonic plastic welder." Thesis, Cape Peninsula University of Technology, 2009. http://hdl.handle.net/20.500.11838/1093.

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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2009
This thesis presents the design and development of a multicell inverter for ultrasonic plastic welding applications and other ultrasonic applications. An overview of the main multilevel topologies is given, but this research focuses on the multicelll inverter, because of its capacitor voltage balancing properties. Loading effects of various plastic materials to an ultrasonic plastic welding tool are provided in this thesis. A simple method to create an approximate electrical equivalent circuit of the ultrasonic welding tool, using an impedance analyser, loaded with different plastics is discussed and illustrated. Experimental results of the four-level multicell inverter driving a resistive load and an ultrasonic transducer tool are presented in this thesis. These results provide proof that the multicell inverter topology is capable of driving a non-linear load. The inverter was tested with the ultrasonic load as an ultrasonic plastic welder and an ultrasonic drill. The welding joints on the plastic samples are also evaluated in order to evaluate whether or not this solution is suitable for plastic welding. The ultrasonic drilling results are also shown in this thesis. It is further illustrated that the ultrasonic tool and power supply combination may be used in other ultrasonic applications.
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Welder, Rachael Mae. "Preservice Elementary Teachers' Mathematical Content Knowledge of Prerequisite Algebra Concepts." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/welder/WelderR0507.pdf.

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Research illustrating that student achievement is affected by teachers' knowledge advocates for K-8 teachers to be knowledgeable regarding prerequisite algebra concepts: (1) numbers (numerical operations), (2) ratios/proportions, (3) the order of operations, (4) equality, (5) patterning, (6) algebraic symbolism (including letter usage), (7) algebraic equations, (8) functions, and (9) graphing. The theoretical framework for the knowledge for teaching mathematics built for this study suggests that the mathematical content knowledge needed for teaching consists of specialized content knowledge in addition to common content knowledge. Specialized mathematical content knowledge extends beyond solving mathematical problems to encompass how and why mathematical procedures work and an awareness of structuring and representing mathematical content for learners. The effects of an undergraduate mathematics content course for elementary education students on preservice teachers' common and specialized content knowledge of prerequisite algebra concepts was investigated, using a pre-experimental one-group pretest-posttest design. A quantitative, 51-item, multiple-choice instrument, developed specifically to measure both types of content knowledge with respect to prerequisite algebra concepts, was constructed from the Learning Mathematics for Teaching Project's Content Knowledge for Teaching Mathematics Measures question bank. This instrument was administered to all students enrolled in Mathematics for Elementary Teachers I (n = 48), at Montana State University, during the fall semester of 2006. Matched pairs t-tests, comparing pretest and posttest scores within the single sample, show significant gains (p = .000) in both common and specialized content knowledge and in all tested aspects of prerequisite algebra knowledge (numbers and equations/functions). Results also suggest a significant correlation (r = .716, p = .000) between preservice teachers' common and specialized content knowledge. Lastly, a oneparameter linear model was constructed to predict the number of participants to incorrectly answer each item, based on item difficulty. Items missed by notably more or less students than predicted were identified and analyzed. The one item students performed better than expected on addresses common content knowledge regarding a linear graph. The set of troublesome items address both common and specialized content knowledge of reading, writing, and representing functions in a variety of contexts and using ratios to write and solve proportions.
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Palmer, Benjamin L. "Effect of welder group size on individual respiratory exposures to welding fumes." Oklahoma City : [s.n.], 2010.

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Liu, Yukang. "Virtualized Welding Based Learning of Human Welder Behaviors for Intelligent Robotic Welding." UKnowledge, 2014. http://uknowledge.uky.edu/ece_etds/51.

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Combining human welder (with intelligence and sensing versatility) and automated welding robots (with precision and consistency) can lead to next generation intelligent welding systems. In this dissertation intelligent welding robots are developed by process modeling / control method and learning the human welder behavior. Weld penetration and 3D weld pool surface are first accurately controlled for an automated Gas Tungsten Arc Welding (GTAW) machine. Closed-form model predictive control (MPC) algorithm is derived for real-time welding applications. Skilled welder response to 3D weld pool surface by adjusting the welding current is then modeled using Adaptive Neuro-Fuzzy Inference System (ANFIS), and compared to the novice welder. Automated welding experiments confirm the effectiveness of the proposed human response model. A virtualized welding system is then developed that enables transferring the human knowledge into a welding robot. The learning of human welder movement (i.e., welding speed) is first realized with Virtual Reality (VR) enhancement using iterative K-means based local ANFIS modeling. As a separate effort, the learning is performed without VR enhancement utilizing a fuzzy classifier to rank the data and only preserve the high ranking “correct” response. The trained supervised ANFIS model is transferred to the welding robot and the performance of the controller is examined. A fuzzy weighting based data fusion approach to combine multiple machine and human intelligent models is proposed. The data fusion model can outperform individual machine-based control algorithm and welder intelligence-based models (with and without VR enhancement). Finally a data-driven approach is proposed to model human welder adjustments in 3D (including welding speed, arc length, and torch orientations). Teleoperated training experiments are conducted in which a human welder tries to adjust the torch movements in 3D based on his observation on the real-time weld pool image feedback. The data is off-line rated by the welder and a welder rating system is synthesized. ANFIS model is then proposed to correlate the 3D weld pool characteristic parameters and welder’s torch movements. A foundation is thus established to rapidly extract human intelligence and transfer such intelligence into welding robots.
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Zackiewicz, Curt Stephen. "DC-DC Power Converter Design for a Portable Affordable Welder System (PAWS)." Wright State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1300807818.

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Stegelman, Michael S. "Development of a cost effective organizational model for the shipbuilding welder labor workforce." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep%5FStegelman.pdf.

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Thesis (M.S. in Systems Engineering Management)--Naval Postgraduate School, September 2009.
Thesis Advisor(s): Osmundson, John. "September 2009." Description based on title screen as viewed on November 6, 2009. Author(s) subject terms: Manpower, Marine Welder, Organizational Structure, Labor Workforce Development, Requirements Management, Marine Labor Crafts, Trade Union, Gap Analysis Includes bibliographical references (p. 73-76). Also available in print.
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Yu, Rui. "A REDUNDANT MONITORING SYSTEM FOR HUMAN WELDER OPERATION USING IMU AND VISION SENSORS." UKnowledge, 2018. https://uknowledge.uky.edu/ece_etds/128.

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In manual control, the welding gun’s moving speed can significantly influence the welding results and critical welding operations usually require welders to concentrate consistently in order to react rapidly and accurately. However, human welders always have some habitual action which can have some subtle influence the welding process. It takes countless hours to train an experienced human welder. Using vision and IMU sensor will be able to set up a system and allow the worker got more accurate visual feedback like an experienced worker. The problem is that monitor and measuring of the control process not always easy under a complex working environment like welding. In this thesis, a new method is developed that use two different methods to compensate each other to obtain accurate monitoring results. Vision sensor and IMU sensor both developed to obtain the accurate data from the control process in real-time but don’t influence other. Although both vision and IMU sensor has their own limits, they also have their own advantage which can contribute to the measuring system.
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White, Steven A. "Impact of Visualization Augmentation on Welder Training| A Study with the Simulated MIG Lab." Thesis, University of Louisiana at Lafayette, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3590087.

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This works outlines the creation of a fully immersive real time simulation of the Metal Inert Gas Welding technique. It outlines the creation, development and trials associated with creating a unique GPU based physical simulation and visualizations associated with the simulated environment. A trial is conducted among various students and technical personnel with the simulator to investigate the concepts of learning transfer through simulation augmentation. The results are positive towards low-road transfer and additionally outline future studies in the fields.

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Zelený, Miroslav. "Provoz distribučních sítí s odporovými svářečkami." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219391.

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This Diploma thesis deals with assessment of the influence of two fundamental types of resistance welders operation on chosen power quality parameters at the point of common coupling (PCC) of the power network. The assessed parameters of power quality are the total harmonic distortion of the supply voltage, asymmetry of the supply voltage and the level of short term flicker at the point of common coupling. The assessment is based on the comparison of the results of computer simulations done in PSCad 4.2.0 with the requirements of technical standards. The outcome of this thesis is the determination of allowable limits for physical and operation parameters for the general arrangement of a power distribution network and a resistance welder that should guarantee the power quality compliance.
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Dansie, Ty Samual. "Simulation of the Inertia Friction Welding Process Using a Subscale Specimen and a Friction Stir Welder." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6749.

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This study develops a method to simulate a full-scale inertia friction weld with a sub-scale specimen and modifies a direct drive friction stir welder to perform the welding process. A torque meter is fabricated for the FSW machine to measure weld torque. Machine controls are modified to enable a force control during the IFW process. An equation is created to measure weld upset due to deflection of the FSW machine. Data obtained from a full-scale inertia friction weld are altered to account for the geometrical differences between the sub-scale and full-scale specimens. The IFW are simulated with the sub-scale specimen while controlling spindle RPM and matching weld power or weld RPM. The force used to perform friction welding is scaled to different values accounting for specimen size to determine the effects on output parameters including: HAZ, upset, RPM, torque, power and energy of the weld. Increasing force has positive effects to upset, torque, power and energy of the welds, while reducing the size of the HAZ.
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Books on the topic "Welder"

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Branch, Canada Occupational and Career Information. Welder. [Ottawa]: Occupational and Career Information Branch, 1990.

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Apprenticeship training: Welder program. Edmonton]: Alberta, Manpower, Apprenticeship and Trade Certification, 1986.

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Stewart, John P. Welder/fitter's training guide. LaSalle, Quebec: John P. Stewart, 1996.

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Welder apprenticeship course outline. Edmonton, AB: Alberta Apprenticeship and Industry Training, 2007.

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Lillegard, Dee. I can be a welder. Chicago: Childrens Press, 1986.

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Association, Welding Manufacturers'. The arc welder at work. [S.l.]: Welding Manufacturers' Association, 1994.

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Stewart, John P. Welder/Fitters Training Guide: Http://johnstewartbooks.weebly.com/. 9773 LaSalle Blvd., LaSalle, Quebec, Canada, H8R 2N9, tel 514 366 8410, jstewart747@hotmail.com: John P. Stewart, 1994.

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National Center for Construction Education and Research (NCCER) (U.S.). AWS welding entry-level welder: Trainee guide. Upper Saddle River, N.J: Prentice Hall, 2000.

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National Center for Construction Education and Research (NCCER) (U.S.). AWS entry level welder--phase 1: [trainee guide]. 2nd ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2003.

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F, Jeffus Larry, ed. The essental welder: Gas metal arc welding : classroom manual. Albany, NY: Delmar, 2000.

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Book chapters on the topic "Welder"

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Moraga, Cherríe. "The Welder." In Feminist Theory Reader, 329–30. Fifth edition. | New York, NY : Routledge, 2020.: Routledge, 2020. http://dx.doi.org/10.4324/9781003001201-39.

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Smith, C., and Wharton Williams. "Automatic Stud Welder for Surface and Underwater Applications." In Advances in Underwater Technology, Ocean Science and Offshore Engineering, 283–87. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4203-5_32.

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Drews, Paul, and Dieter Matzner. "Smart Welder — A Mechatronic Application for Automated Shipbuilding." In Proceedings of the Third Conference on Mechatronics and Robotics, 212–25. Wiesbaden: Vieweg+Teubner Verlag, 1995. http://dx.doi.org/10.1007/978-3-322-91170-4_16.

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Asai, Satoru, Yosuke Ogino, Kazufumi Nomura, and Kazunori Hattori. "Study on the On-line Support System for Welder." In Lecture Notes in Mechanical Engineering, 89–95. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29041-2_11.

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Liu, Yukang, and Yuming Zhang. "Human Welder 3-D Hand Movement Learning in Virtualized GTAW: Theory and Experiments." In Transactions on Intelligent Welding Manufacturing, 3–25. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8740-0_1.

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Zhang, Gang, Yukang Liu, Yu Shi, Ding Fan, and Yuming Zhang. "Modeling and Optimization of Adjustment of Human Welder on Weld Pool Dynamics for Intelligent Robot Welding." In Transactions on Intelligent Welding Manufacturing, 3–26. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7418-0_1.

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Fan, Ding, Xiaochun Dun, Gang Zhang, and Yu Shi. "Study on Human Welder Behavior by Measuring Local Flow Pattern of Weld Pool and Torch Posture." In Transactions on Intelligent Welding Manufacturing, 27–35. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5355-9_2.

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Liu, Yu-Kang, Ning Huang, and Yu-Ming Zhang. "Modeling of Human Welder Response Against 3D Weld Pool Surface Using Machine-Human Cooperative Virtualized Welding Platform." In Advances in Intelligent Systems and Computing, 451–57. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18997-0_38.

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Häberlein, Mark. "Welser." In Enzyklopädie der Neuzeit, 397–99. Stuttgart: J.B. Metzler, 2011. http://dx.doi.org/10.1007/978-3-476-00063-7_150.

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Shah, Tarang, and Sheetal Shah. "Harry Weller." In Venture Capitalists at Work, 115–32. Berkeley, CA: Apress, 2011. http://dx.doi.org/10.1007/978-1-4302-3838-6_9.

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Conference papers on the topic "Welder"

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Mariam, Hasetetsion G., J. Rick Baer, David J. Scholl, Ronald P. Cooper, Daniel E. Wilkosz, Anthony J. Grima, and Larry V. Reatherford. "Ultrasonic Welding of Aluminum 6111: Reliability and Maintainability Study of Robot Mounted C-Gun Welding System." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42929.

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Ultrasonic metal welding (USW) is a promising joining method for aluminum automotive body construction applications. During USW, aluminum weldments are joined together by applying high frequency vibrations while holding the parts together with a moderate clamping force. In an effort to further the development of USW for high volume robotic body construction applications, a reliability and maintainability study was performed using a robotic welding cell installed in the Ford Research and Innovation Center. The robot was equipped with a modified Sonobond ultrasonic metal welder, which was mounted on a C-frame. The study consisted of welding fully overlapped 550 mm × 350 mm × 0.9mm thick AA6111-T4 aluminum panels with 330 welds on each panel until 100,000 welds were made. Consistency in welder operation was monitored by welding fully overlapped AA6111-T4 aluminum strips (25mm wide × 550 mm long × 0.9mm thick) at the end of each day’s welding and then tensile testing the strips in a T-peel configuration. There was no statistical difference in average T-peel strength over the course of the 100,000 weld study. There was also no degradation noted in lap shear failure loads between samples welded at the end of the 100,000 weld study and those generated before initiation of the study. Reliability of the USW process during this study was monitored by periodic inspection of the robot and welder joints, attachments, fittings, tip, anvil, clamps, cables, etc. Only very minor wear of the welder tip and anvil contact surfaces were noted after the study was completed. However, during the study, after 82,000 welds a small piece of aluminum was removed from between the tip grooves, even though the weld strength was unaffected by the presence of the aluminum. There were no failures of any mechanical or electrical parts during the study. In addition, primary voltage and current signals of the ultrasonic welder’s power controller were periodically recorded during the weld study and it was determined that there was no change in the electrical behavior of the welder.
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Hudlow, Stephanie L. "Welding Plutonium Storage Containers." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2778.

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The outer can welder (OCW) in the FB-Line Facility at the Savannah River Site (SRS) is a Gas Tungsten Arc Weld (GTAW) system used to create outer canisters compliant with the Department of Energy 3013 Standard, DOE-STD-3013-2000, Stabilization, Packaging, and Storage of Plutonium-Bearing Materials. The key welding parameters controlled and monitored on the outer can welder Data Acquisition System (DAS) are weld amperage, weld voltage, and weld rotational speed. Inner 3013 canisters from the Bagless Transfer System that contain plutonium metal or plutonium oxide are placed inside an outer 3013 canister. The canister is back-filled with helium and welded using the outer can welder. The completed weld is screened to determine if it is satisfactory by reviewing the OCW DAS key welding parameters, performing a helium leak check, performing a visual examination by a qualified weld inspector, and performing digital radiography of the completed weld. Canisters with unsatisfactory welds are cut open and repackaged. Canisters with satisfactory welds are deemed compliant with the 3013 standard for long-term storage.
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White, S., M. Prachyabrued, D. Baghi, A. Aglawe, D. Reiners, C. Borst, and T. Chambers. "Virtual Welder Trainer." In 2009 IEEE Virtual Reality Conference. IEEE, 2009. http://dx.doi.org/10.1109/vr.2009.4811066.

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Haverly, Craig M., Edward M. Kamins, Sean Krieger, and Daniel A. Finke. "Improved Welder Productivity." In SNAME Maritime Convention. SNAME, 2013. http://dx.doi.org/10.5957/smc-2013-p15.

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This paper discusses the progress made in the development of a “Smart Welder” system consisting of “state of the industry” networked welding power supplies, welding productivity software, and a new programmatic “go / no-go” decision to reduce the potential for wrong weld wire (WWW) occurrences and the resulting rework at General Dynamics Electric Boat. A secondary focus of this effort is to facilitate the checks required of a welder prior to striking an arc which should result in a reduced welder start-up time, enabling the welder to be more like a surgeon who has his tools assembled and ready at the start of his task. A prototype “Smart Welder” System is under development and is expected to save $1.78M/VIRGINIA Class Submarine.
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Liu, YuKang, and YuMing Zhang. "Welder rating system based learning of human welder intelligence in GTAW." In 2015 IEEE International Conference on Advanced Intelligent Mechatronics (AIM). IEEE, 2015. http://dx.doi.org/10.1109/aim.2015.7222556.

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White, Steven A., Dirk Reiners, Mores Prachyabrued, Christoph W. Borst, and Terrence L. Chambers. "Virtual reality welder training." In IS&T/SPIE Electronic Imaging, edited by Ian E. McDowall and Margaret Dolinsky. SPIE, 2010. http://dx.doi.org/10.1117/12.840473.

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Porter, Nancy C., J. Allan Cote, Timothy D. Gifford, and Wim Lam. "Virtual Reality Welder Training." In SNAME Maritime Convention. SNAME, 2005. http://dx.doi.org/10.5957/smc-2005-p19.

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Liu, YuKang, and YuMing Zhang. "Super welder in augmented reality welder training system: A predictive control approach." In 2015 IEEE 24th International Symposium on Industrial Electronics (ISIE). IEEE, 2015. http://dx.doi.org/10.1109/isie.2015.7281456.

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Geiser, Kyle, William Maier, Nicholas Ives, Jared Van Curen, Gunnar Tamm, Brodie Hoyer, and Harry Moore. "Field Improvised Electric Arc Welder." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67890.

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Generations of warfighters have benefited from field manuals to provide instructional knowledge for creating improvised devices and capabilities from readily available resources. These devices range from simple fundamentals to classified advances in materials and technologies. A collaborative effort between the United States Military Academy and the U.S. Army Armament Research, Development and Engineering Center is creating the latest repertoire of capabilities for soldiers in theater. An improvised electric arc welder was developed to provide field expedient capabilities to them. Both AC wall power and DC power from car batteries were utilized to demonstrate various options. This paper provides the electrical models, experimental results and lessons learned. Welds were tested in a tension tester to determine their viability.
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Lee, Jun-Ho, Hwa-Chun Lee, Jun-Ho Choi, Sung-Jun Park, and Hae-Gon Nam. "10kW industrial ultrasonic welder design." In INTELEC 2009 - 2009 International Telecommunications Energy Conference. IEEE, 2009. http://dx.doi.org/10.1109/intlec.2009.5352096.

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Reports on the topic "Welder"

1

Plodinec, M. J. DWPF Welder Parametric Study. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/5146.

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J. H. Schell. 1K RESERVOIR: EB WELDER, CE69412 REQUALIFICATION. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/885183.

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Mcintosh, J., and K. Burkes. COMPREHENSIVE AUTOMATED WELDER SYSTEM - PDRD SR-17-007. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1568786.

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Milling, R. B. Development of Infrared Welder for Sealing of Polyethylene TRU-Waste Containers. Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/7964.

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Destefan, D. E. Mathematical modelling of part voltage and weld current in resistance welders. Office of Scientific and Technical Information (OSTI), September 1990. http://dx.doi.org/10.2172/6376958.

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Seto, Atsushi, Yuichi Yoshida, and Andre Galtier. Fatigue Properties of Arc-Welded Lap Joints With Weld Start and End Points. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0128.

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Connor, Robert J., and Cem Korkmaz. Fatigue Categorization of Obliquely Oriented Welded Attachments. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317210.

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In current bridge design specifications and evaluation manuals from the American Association of State Highway and Transportation Officials (AASHTO LRFD) (AASHTO, 2018), the detail category for base metal at the toe of transverse stiffener-to-flange fillet welds and transverse stiffener-to-web fillet welds to the direction of the web and hence, the primary stress) is Category C′. In skewed bridges or various other applications, there is sometimes a need to place the stiffener or a connection plate at an angle that is not at 90 degrees to the web. As the plate is rotated away from being 90 degrees to the web, the effective “length” of the stiffener in the longitudinal direction increases. However, AASHTO is currently silent on how to address the possible effects on fatigue performance for other angles in between these two extremes. This report summarizes an FEA study that was conducted in order to investigate and determine the fatigue category for welded attachments that are placed at angles other than 0 or 90 degrees for various stiffener geometries and thicknesses. Recommendations on how to incorporate the results into the AASHTO LRFD Bridge Design Specifications are included in this report.
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Christine, Lozano, and Riveros Guillermo. Classical and innovative methods of fatigue and fracture repairs in navigation steel structures. Engineer Research and Development Center (U.S.), April 2021. http://dx.doi.org/10.21079/11681/40422.

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Most of the hydraulic steel structures (HSS) in the U.S. have reached or have past their design life, which leads to unsatisfactory performance. Welded connections with low fatigue resistance, poor weld quality, unanticipated structural behavior, or unexpected loading due to the deterioration of the design boundary conditions are the causes of fatigue cracking. The purpose of this report is to identify and evaluate the traditional and new methods used for fatigue and fracture repairs in navigation steel structures to restore their load carrying capacity and fatigue and fracture resistance. The final objective was to generate a guidance report comprising of recommended and more efficient repair methods for the different fatigue limit states observed in navigation steel structures.
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Ellison, Chad M., Matthew J. Perricone, Kevin M. Faraone, and Jerome T. Norris. Pulse shaping effects on weld porosity in laser beam spot welds : contrast of long- & short- pulse welds. Office of Scientific and Technical Information (OSTI), October 2007. http://dx.doi.org/10.2172/921738.

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Thomson, R., and W. R. Tyson. Corrosion fatigue of welded joints. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/305066.

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