Log in

Relevant bibliographies by topics / Welder / Journal articles

To see the other types of publications on this topic, follow the link: Welder.

Journal articles on the topic 'Welder'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 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 'Welder.'

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

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

2

Krisak, Len. "Welder." English Journal 89, no. 4 (March 2000): 126. http://dx.doi.org/10.2307/821999.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

4

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

5

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

6

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

7

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

9

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

10

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

11

Reesal, Michael R., Ronald M. Dufresne, Donna Suggett, and Brian C. Alleyne. "Welder Eye Injuries." Journal of Occupational and Environmental Medicine 31, no. 12 (December 1989): 1003–6. http://dx.doi.org/10.1097/00043764-198912000-00014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Vorel, Pavel, Jan Martis, and Dalibor Cervinka. "LiFePO4Powered Arc Welder." ECS Transactions 81, no. 1 (December 4, 2017): 281–88. http://dx.doi.org/10.1149/08101.0281ecst.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Braid, K. "Camp Job: Welder." Labor: Studies in Working-Class History of the Americas 8, no. 1 (March 1, 2011): 7–8. http://dx.doi.org/10.1215/15476715-2010-043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Mulyana, Mulyana, Nuri Purwito Purwito Adi, Meily L. Kurniawidjaja, Andi Wijaya, and Irawan Yusuf. "Lung Function Status of Workers Exposed to Welding Fume: A Preliminary Study." Indonesian Biomedical Journal 8, no. 1 (April 1, 2016): 37. http://dx.doi.org/10.18585/inabj.v8i1.196.

Full text

Abstract:

BACKGROUND: Exposure to welding fume in the workplace was associated with lung function disorders and occupational asthma. In this study, we determined lung function parameters in men workers exposed to welding fumes from heavy equipment manufacturer. This study is a preliminary study of biomonitoring program in worker exposed to welding fume as our main study. METHODS: A study with case-control design, random study, was conducted among welder (59 subjects) and non-welder (34 subjects) with more than one year experience in the same job task in a heavy equipment manufacturer. All subjects completed physical examination, informed consent, questionnaire and lung function status. Lung function status was measured by spirometer with vital capacity (VC), forced vital capacity (FCV), forced expiratory volume in one second (FEV1) and ratio of FEV1/FVC as test parameters. Linear regression model was developed to identify the risk factor of lung function parameter status using age, working period and smoking status as variables. RESULTS: This study showed that there were significant lower VC, FVC and FEV1 in welder than non-welder, but not difference in ratio of FEV1/FVC. However, there was no significant difference among welder from foundry and fabrication plan. By multivariate analysis, working period was found as a risk factor for lower parameters in lung function among welder. CONCLUSION: Lung function parameters status were significantly lower in welder than non-welder, and working period was the most important indicator for lung function status evaluation among welder. KEYWORDS: vital capacity, VC, forced vital capacity, FCV, forced expiratory volume in one second, FEV1, lung function, ratio of FEV1/FVC, working period

APA, Harvard, Vancouver, ISO, and other styles

15

Wikurendra, Edza Aria, Muhammad Shafly Rabbani, and Globila Nurika. "Association Between Lighting Level to Subjective Complaints of Visual Fatigue on Operators in the Auto Welder Section." Indonesian Journal Of Occupational Safety and Health 10, no. 2 (July 30, 2021): 218. http://dx.doi.org/10.20473/ijosh.v10i2.2021.218-223.

Full text

Abstract:

Introduction: Good intensity of light dramatically affects the eyes. If there is less intensity of light. the eye muscles contract as much as possible to see objects or vice versa. If this happens continuously, it will cause damage to the eyes. Based on the preliminary study, it was found that as the auto welder operators have the task to observe the results of the auto welder engine to determine the quality of the welder, this type of work needs accuracy so that the right lighting intensity is required. This study aimed to determine the association between the lighting level and subjective visual fatigue complaints on operators in the auto welder section. Methods: The research method used was quantitative, with a cross- sectional approach and observational method. The samples in this study were 18 respondents from the total sampling technique. The instrument used was the Visual Fatigue Index (VTI) questionnaire. Moreover, the analysis of the study results used the one sample T-test statistical test to determine the association between the dependent and independent variables. Results: The one sample T-test results showed p-value = 0.012 < α = 0.05. This result showed an association between the lighting leveland subjective visual fatigue complaints on operators in the auto welder section. Conclusion: In this research, it was found that the majority of lighting levels that did not meet the standards had an association with subjective complaints of visual fatigue on the operators in the auto welder section.Keywords: auto welder, lighting, visual fatigue

APA, Harvard, Vancouver, ISO, and other styles

16

Sakabe, Akira, Takayuki Kashima, Tsuneo Mita, and Takeshi Araya. "Inverter controlled arc welder." Journal of the Japan Welding Society 55, no. 7 (1986): 419–28. http://dx.doi.org/10.2207/qjjws1943.55.419.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Mullins, Peter. "Robot welder boosts productivity." Industrial Robot: An International Journal 13, no. 2 (February 1986): 119. http://dx.doi.org/10.1108/eb004950.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Porter, Nancy C., J. Allan Cote, Timothy D. Gifford, and Wim Lam. "Virtual Reality Welder Training." Journal of Ship Production 22, no. 03 (August 1, 2006): 126–38. http://dx.doi.org/10.5957/jsp.2006.22.3.126.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Batchelor, Alexandria. "Visionary: the future welder." Communication and Critical/Cultural Studies 18, no. 3 (July 3, 2021): 283–84. http://dx.doi.org/10.1080/14791420.2021.1954208.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Ebel, Lucas Christoph, Jochen Maaß, Patrick Zuther, and Shahram Sheikhi. "Trajectory Extrapolation for Manual Robot Remote Welding." Robotics 10, no. 2 (May 23, 2021): 77. http://dx.doi.org/10.3390/robotics10020077.

Full text

Abstract:

This article describes an algorithm for the online extrapolation of hand-motion during remote welding. The aim is to overcome the spatial limitations of the human welder’s arms in order to cover a larger workspace with a continuous weld seam and to substantially relieve the welder from strain and fatigue. Depending on the sampled hand-motion data, an extrapolation of the given motion patterns is achieved by decomposing the input signals in a linear direction and a periodic motion component. An approach to efficiently determine the periodicity using a sampled autocorrelation function and the subsequent application of parameter identification using a spline function are presented in this paper. The proposed approach is able to resemble all practically relevant motion patterns and has been validated successfully on a remote welding system with limited input space and audio-visual feedback by an experienced welder.

APA, Harvard, Vancouver, ISO, and other styles

21

Feng, Rui Cheng, Hao Xu, Zhi Yuan Rui, Hai Yan Li, and Bao Cheng Zhou. "The Optimization Design of Spindle Box for Large Friction Welder Based on the Sensitivity Analysis." Advanced Materials Research 655-657 (January 2013): 502–5. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.502.

Full text

Abstract:

Focusing on the problem of accuracy machining to the friction welder,taking the spindle box of friction welder as the research object,the finite element simulation software of ANSYS workbench is applied to the static analysis of the box ,then the stress and strain response can be available. And through the using of sensitivity analysis optimization scheme is proposed ,which prerequisite basis is obtained for the optimization design and the improvement of breed to the spindle box of large friction welder

APA, Harvard, Vancouver, ISO, and other styles

22

Jiang, Wei. "Numerical Study of Welding Sequence on the Residual Stress Field in a Thick-Walled Tee Joint." Advanced Materials Research 219-220 (March 2011): 1211–14. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.1211.

Full text

Abstract:

Finite element simulation is an efficient method for studying factors affecting weld-induced residual stress distributions. In this paper, a validated three-dimensional finite element model consisting of sequentially coupled thermal and structural analyses was developed. Three possible symmetrical welding sequences, i.e. one-welder, two-welder and four-welder sequence, which were perceived to generate the least distortion in actual welding circumstances, were proposed and their influences on the residual stress fields in a thick-walled tee joint were investigated. Appropriate conclusions and recommendations regarding welding sequences are presented.

APA, Harvard, Vancouver, ISO, and other styles

23

Siswoyo, Siswoyo, Kushariyadi Kushariyadi, and Nur Winingsih. "The Health Education Demonstration Methods to Increase the Knowledge Level of Prevention of the Corpus Alienum of Eye toward Welding Workers." NurseLine Journal 3, no. 2 (November 25, 2018): 46. http://dx.doi.org/10.19184/nlj.v3i2.6833.

Full text

Abstract:

Corpus alienum is any object or substance found in an organ or tissue in which it does not belong under normal circumstances. Corpus alienum of eye can be experienced by welder that do not use eye protective equipment. Health education with demonstration methods is one of the learning methods to improve the knowledge. The purpose of this research is to know the influence of health education by demonstration method toward the knowledge level of the corpus alienum eye’s prevention in welder. This research used pre-experimental with one group pretest-posttest design. The sampling technique was non-probability samplig used total sampling involving 16 respondents. The data were statistically analyzed using wilcoxon test. The result of data analyze showed a significant value (p value = 0.005). Health education with demonstration methods can improve the knowledge of welder so can be minimized the risk of corpus alienum of eye. There were correlation between health education of demonstration methods and the knowledge level of prevention of the corpus alienum of eye to welder in Putra Jaya Sumbersari the districts of Jember. It is expected that nurses can do health education demonstration methods to prevent corpus alienum of eye in welder to be minimized the risk of corpus alienum of eye.

APA, Harvard, Vancouver, ISO, and other styles

24

Li, Shao Lin, Ai Zhen Wang, and Cheng De Lin. "The Design of CNC System on the Electron Beam Welder." Advanced Materials Research 189-193 (February 2011): 1307–11. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.1307.

Full text

Abstract:

The electron beam welder is the application example of high-energy beam on the Welding equipment. In order to achieve a variety of logic control device, the traditional control system of the electron beam welder is based on PLC. It exist a lot of the disadvantages in the traditional control system of the electron beam welder. Especially, its welding energy has the simplex form of supply and the asynchronous with trajectory. In order to deal with this problem, it is developed the CNC system with the form of industrial personal computer (IPC) + motion control card in this paper. This CNC system can achieve the unified programming and synchronous control of the trajectory and two-energy magnitude: the focusing current and electron beam current. This CNC system can make up for the deficiency of the traditional control system and improve the efficiency and precision of weld. Feedback from its application on the electron beam welder indicates that it works reliably and the performance is satisfactory.

APA, Harvard, Vancouver, ISO, and other styles

25

Tarasova, Dar'ya, and Aleksandra Prusakova. "PROFESSIONAL RISKS OF ELECTRIC GAS WELDER." Scientific Papers Collection of the Angarsk State Technical University 2021, no. 1 (July 5, 2021): 218–23. http://dx.doi.org/10.36629/2686-7788-2021-1-1-218-223.

Full text

Abstract:

The identification of the professional risks of an electric and gas welder was carried out, and an ap-proximate list of measures to improve working conditions and risk management in the field of labor protection for the workplace of an electric and gas welder was proposed.

APA, Harvard, Vancouver, ISO, and other styles

26

Record, Paul, Michael Ahmon, and Edward Hitchcock. "An Electronically Controlled Micro—Welder." Journal of Medical Engineering & Technology 12, no. 2 (January 1988): 59–60. http://dx.doi.org/10.3109/03091908809030160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Jenista, David. "Rotary Welder for Hot Billets." Materials Science Forum 618-619 (April 2009): 245–48. http://dx.doi.org/10.4028/www.scientific.net/msf.618-619.245.

Full text

Abstract:

The use of two-piece billets in aluminium extrusion is often viewed as a necessary evil. A heating system that provides two-piece billets to the press can provide better ingot utilization than a heater which provides single-piece billets. The issues associated with the handling and extruding of two-piece billets are accepted as the price of improved ingot utilization. With the rotary welder, the end of each log segment is joined to the front of the following log by friction welding. The combination of the rotation of the short piece and the pressure applied creates a bond that will maintain one-piece integrity as the billet is conveyed to the press and loaded into the container. The handling issues associated with two-piece billets are eliminated. A unique re-cut cycle removes contaminants from the two weld faces immediately prior to welding. The two ends are precisely aligned and the saw makes a cut that removes the face of the remaining piece and the face of the following log. This re-cut removes debris, oxide and potential trapped air from a less than perfect cut at the cast house. The welding is then performed with the two freshly cut faces. The metallurgical performance is improved by the removal of debris and oxide on the faces. This allows the use of welded billets in some applications that previously required single-piece billets to achieve the necessary structural integrity.

APA, Harvard, Vancouver, ISO, and other styles

28

Niyi Afolabi. "A Welder of the Word." World Literature Today 89, no. 1 (2015): 59. http://dx.doi.org/10.7588/worllitetoda.89.1.0059.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Futamata, Masami. "Hearing acuity conservation for welder." Journal of the Japan Welding Society 56, no. 6 (1987): 368–73. http://dx.doi.org/10.2207/qjjws1943.56.368.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Karastojanov, D., D. Lakov, and G. Nachev. "A Flexible GMA Welder Control." IFAC Proceedings Volumes 18, no. 16 (November 1985): 359–62. http://dx.doi.org/10.1016/s1474-6670(17)59990-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Lu, Donna. "Robot welder controlled by thought." New Scientist 241, no. 3216 (February 2019): 7. http://dx.doi.org/10.1016/s0262-4079(19)30222-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

ANGERVALI, L., G. HANSSON, and H. RÖCKERT. "PULMONARY SIDEROSIS IN ELECTRICAL WELDER." Acta Pathologica Microbiologica Scandinavica 49, no. 3 (August 15, 2009): 373–81. http://dx.doi.org/10.1111/j.1699-0463.1960.tb01148.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Du, Ying, and H. Ralph Schumacher. "85 year-old Retired Welder." JCR: Journal of Clinical Rheumatology 9, no. 4 (August 2003): 273. http://dx.doi.org/10.1097/01.rhu.0000081340.25573.21.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Du, Ying, and H. Ralph Schumacher. "85-Year-Old Retired Welder." JCR: Journal of Clinical Rheumatology 9, no. 5 (October 2003): 328. http://dx.doi.org/10.1097/01.rhu.0000089970.72761.37.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Wu, Chuansong. "Microcomputer-based welder training simulator." Computers in Industry 20, no. 3 (October 1992): 321–25. http://dx.doi.org/10.1016/0166-3615(92)90080-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Rehman, Habib Ur. "Acute Dyspnea in a Welder." Journal of Emergency Medicine 45, no. 3 (September 2013): 408–10. http://dx.doi.org/10.1016/j.jemermed.2013.02.020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Zhu, Zongtao, Yuanxing Li, Mingyue Zhang, and Chen Hui. "Effects of stress concentration on the fatigue strength of 7003-T5 aluminum alloy butt joints with weld reinforcement." International Journal of Modern Physics B 29, no. 10n11 (April 23, 2015): 1540023. http://dx.doi.org/10.1142/s0217979215400238.

Full text

Abstract:

7003-T5 Aluminum ( Al ) alloy plates with a thickness of 5 mm are welded by gas metal arc welding (GMAW) method in this work. In order to investigate the influence of stress concentration introduced by weld reinforcement on fatigue strength, the stress concentration factor of the butt joint is calculated. Microscopic and X-ray techniques were utilized to make sure there are no weld defects with large size in butt weld, which can induce extra stress concentration. The cyclic stress – number of cycles to failure (S–N) curves of the joints with and without the welder were obtained by fatigue testing, and the results show that the fatigue strength of 7003-T5 Al alloy butt joints with the weld reinforcement is 50 MPa, which is only 45% of the joints without the weld reinforcement. Fracture surface observation indicated that the fatigue source and propagation are dissimilar for the specimens with and without the welder due to the stress concentration at the weld root. The stress concentration with a factor of 1.7 has great effect on the fatigue strength, but little influence on the tensile strength.

APA, Harvard, Vancouver, ISO, and other styles

38

Mamadaliev, R. A., V. N. Kuskov, U. D. Zemenkov, and A. A. Popova. "Influence of High-Concentrated Heat Sources on Alloying Elements Transition into the Weld Metal." Applied Mechanics and Materials 770 (June 2015): 19–22. http://dx.doi.org/10.4028/www.scientific.net/amm.770.19.

Full text

Abstract:

12Kh18N10T (foreign counterpart AISI 321) and 20Kh13 (foreign counterpart AISI 420) steel plates were welded using a conventional VDU-506 electronic arc welder and a Handy TIG 180 AC/DC Control Pro inverter. We determined regression equations describing the content correlation of chromium, nickel and manganese in the weld metal with the value of the heat input of the heat source. The type of the heat source has almost no influence on the extent of alloying elements transition into the weld metal (within the measurement accuracy) apart from using CL-9 electrodes.

APA, Harvard, Vancouver, ISO, and other styles

39

Cornish, Neville, Rahim Kurji, Anthony Roccisano, and Reza Ghomashchi. "Techno-economic Feasibility of Modified Pulse Arc Deposition on Thick Section of Quenched and Tempered Steel." MATEC Web of Conferences 269 (2019): 01012. http://dx.doi.org/10.1051/matecconf/201926901012.

Full text

Abstract:

Quenched and Tempered (Q&T) steels welded structures that have numerous applications, particularly in the defence industry. However these steels are particularly prone to Hydrogen Assisted Cold Cracking (HACC) and require a highly-skilled welder to fabricate defect-free structures. This is due to the selection of the manual metal arc welding process of shielded metal arc welding (SMAW). The introduction of Modified Pulsed arc mode of depositions; a variation to Pulsed Arc deposition, has advanced deposition rates and can be employed by welders with a greater variation in skill. In this body of work, full strength butt welds are fabricated on 20mm, sections of Q&T AS/NZS 3597 Grade 700 steel under a high level of restraint using Modified Pulse Gas Metal Welding (GMAW-P) and conventional Shielded Metal Arc Welding (SMAW). The study investigates the economic feasibly of the two modes of deposition and the propensity for cracking when welded under high restraint. The study concluded that modified GMAW-P achieved reduction of 63% in the ‘Arc-On' time and an 88% reduction in the total normalised fabrication time. However, due to the increased propensity to lack of fusion type defects, strict controls must be employed in optimising the welding procedure to mediate for such defects if GMAW-P is to provide a techno-economically beneficial alternative to conventional SMAW when welding Q&T steels.

APA, Harvard, Vancouver, ISO, and other styles

40

Wang, Gang, Li Na Feng, and Xiao Ming Zhang. "Control System Development Based on Arc-Submerging Welder for Flat Fillet Seams." Applied Mechanics and Materials 155-156 (February 2012): 1061–65. http://dx.doi.org/10.4028/www.scientific.net/amm.155-156.1061.

Full text

Abstract:

Basing on the original mechanical structure of arc-submerging welder for flat fillet seams, this article designs an arc-submerging welder control system for large steel structures flat fillet seams, such as blast furnaces, oil tanks, and so on, and expatiates on the working principle by circuit designing and testing in detail. This control system has been used greatly in DongYing, DaGang and other construction site for large steel structure.

APA, Harvard, Vancouver, ISO, and other styles

41

Feng, Rui Cheng, Tao Chen, Hai Yan Li, Zhi Yuan Rui, and Guo Tao Zhang. "Performance Analysis for Spindle System of Special Friction Welder Machine Based on ROMAX Software." Advanced Materials Research 971-973 (June 2014): 899–902. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.899.

Full text

Abstract:

This paper focus on the spindle system of special friction welder machine with conductive device made up of aluminum electrolytic prebaked anode. The ROMAX software is employed to analyze the spindle system, and the spindle axial force and displacement, radial displacement, and natural frequency are obtained by the analysis. The reasonable result can be got by analyzing the corresponding results, respectively. Thereby, the gist to improve the fiction welder is attained.

APA, Harvard, Vancouver, ISO, and other styles

42

Li, Qing Hua, Wu Sheng Tang, and Yue Qian Hou. "The Finite Analysis and Optimization of Gantry Beam on Automatic Welder." Applied Mechanics and Materials 345 (August 2013): 553–56. http://dx.doi.org/10.4028/www.scientific.net/amm.345.553.

Full text

Abstract:

Combined with the actual production, the new structure of gantry automatic welder was designed, the gantry beam is the key part of the gantry automatic welder, and the static finite element strength of gantry beam was analyzed on the most dangerous stress position. The maximum stress and the maximum displacement were obtained. Without changing the geometric size of the gantry, the structure of the gantry internal was adjusted to increase its stiffness and strength. Through the finite analysis comparison of the two different stiffeners, better style and distribution form of the stiffener were obtained; the structure of the gantry was optimized. The result shows that the quality of the gantry was reduced by 57%, and the stiffness and strength were improved by 20% and 36%, this provides theory basis for the design and production of gantry welder.

APA, Harvard, Vancouver, ISO, and other styles

43

Noble, R. "INTEGRITY OF BOLTED JOINTS: HYDROCARBON LEAK REDUCTION BY JOINT-INTEGRITY MANAGEMENT." APPEA Journal 46, no. 1 (2006): 603. http://dx.doi.org/10.1071/aj05041.

Full text

Abstract:

Bolted joints are very common in petroleum production facilities. Whereas extensive controls are applied to the production of a welded joint—in terms of material control and specification, control and competence of the welder, and verification of the integrity of the weld—this is not the case for bolted joints. The consequences of failure of a welded joint and a bolted joint, however, are similar and potentially catastrophic if the contents of the pipeline or vessel are hydrocarbons under pressure. This paper discusses the main issues in producing and maintaining a leak-free bolted joint and makes the case for establishing industry-wide standards for the management of bolted joints that are equally as stringent as those applied to welded joints.Implementing such a system, whilst improving and assuring the safety and environmental performance of an asset, will also reduce costs due to rework, product loss, schedule slippage and production downtime.

APA, Harvard, Vancouver, ISO, and other styles

44

Yamamoto, Toshiyuki, and Yuka Hanami. "Discoid lupus erythematosus in a welder." Dermatologica Sinica 38, no. 1 (2020): 65. http://dx.doi.org/10.4103/ds.ds_18_19.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Minehisa, Setsuji. "Shortage of welding wengineer and welder." Journal of the Japan Welding Society 60, no. 3 (1991): 167–68. http://dx.doi.org/10.2207/qjjws1943.60.167.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Wong, Nancy Linsey, and Ira Greene. "Cutaneous Lupus Erythematosus in a Welder." Dermatitis 1, no. 3 (September 1990): 180–82. http://dx.doi.org/10.1097/01206501-199009000-00009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Wong, Nancy Linsey, and Ira Greene. "Cutaneous Lupus Erythematosus in a Welder." American Journal of Contact Dermatitis 1, no. 3 (September 1990): 180–82. http://dx.doi.org/10.1097/01634989-199009000-00009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Nied, Herman A. "Acoustic wave spot welder adaptive control." Journal of the Acoustical Society of America 77, no. 6 (June 1985): 2204. http://dx.doi.org/10.1121/1.391726.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Fidan, Fatma, Hdr Esme, Mehmet Unlu, Murat Acar, Ramazan Albayrak, and F. Husniye Dilek. "Welder??s Lung Associated With Pneumothorax." Journal of Thoracic Imaging 20, no. 2 (May 2005): 120–22. http://dx.doi.org/10.1097/01.rti.0000155039.51662.fc.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Wu, Chuansong, Chunming Wen, and Lin Wu. "A microcomputer-controlled welder training system." Computers & Education 20, no. 3 (April 1993): 271–74. http://dx.doi.org/10.1016/0360-1315(93)90026-f.

Full text

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!