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Zeitschriftenartikel zum Thema „Charge Weld“

Autor: Grafiati

Veröffentlicht am 23. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Chen, Liang, Guo Qun Zhao, and Ting Ting Wang. "Effects of Process Parameters on Charge Weld Length during Multi-Hole Porthole Die Extrusion." Applied Mechanics and Materials 703 (December 2014): 141–45. http://dx.doi.org/10.4028/www.scientific.net/amm.703.141.

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The evolution of charge weld during multi-hole porthole die extrusion was studied by means of finite element simulation and Taguchi’s design. Moreover, based on S/N analysis, the optimal process parameters that can reduce the charge weld length was obtained, where the billet diameter is 100 mm, extrusion speed is 2.0 mm/s, tool temperature is 430 °C and billet temperature is 465 °C. The accuracy and effectiveness of such optimal process parameters were also verified. The purpose of the present study is to provide some information about the controlling of charge weld for extrusion engineers.

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2

Sapchenko, Igor G., Sergey G. Zhilin, Oleg N. Komarov, and Evgeny E. Abashkin. "PROPERTIES OF A WELD JOINT PRODUCED BY A THERMITE CHARGE." Scholarly Notes of Komsomolsk-na-Amure State Technical University 1, no. 9 (2012): 100–105. http://dx.doi.org/10.17084/2012.i-1(9).15.

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3

Sariyarlioglu, Eren Can, Marco Negozio, Torgeir Welo, and Jun Ma. "Charge weld evolution in hollow aluminum extrusion: Experiments and modeling." CIRP Journal of Manufacturing Science and Technology 49 (April 2024): 14–27. http://dx.doi.org/10.1016/j.cirpj.2023.12.007.

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4

Sariyarlioglu, Eren Can, Torgeir Welo, and Jun Ma. "On the mechanisms of charge weld evolution in aluminum extrusion." Journal of Manufacturing Processes 124 (August 2024): 377–84. http://dx.doi.org/10.1016/j.jmapro.2024.06.022.

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5

Lu, Wei, Y. M. Zhang, and John Emmerson. "Adaptive Nontransferred Plasma Charge Sensor and Its Applications." Journal of Manufacturing Science and Engineering 129, no. 1 (2006): 180–89. http://dx.doi.org/10.1115/1.2401627.

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Practical welding control systems require durable/compact sensors to sense the welding process and appropriate control algorithms to produce smooth welds. A novel arc welding sensor, referred to as nontransferred plasma charge sensor, which requires no additional attachment to the torch, has been proved to be reliable for weld pool surface sensing. Aiming at eliminating the effect of manufacturing conditions on the sensor performance, this paper proposes two simple yet effective methods. Specifically, reference signals are sampled either from the bottom or the top surface of the work-piece and

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6

Lu, W., Y. M. Zhang, and John Emmerson. "Sensing of weld pool surface using non-transferred plasma charge sensor." Measurement Science and Technology 15, no. 5 (2004): 991–99. http://dx.doi.org/10.1088/0957-0233/15/5/031.

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7

Ali, Afsar, and Dave Farson. "Statistical Classification of Spectral Data for Laser Weld Quality Monitoring." Journal of Manufacturing Science and Engineering 124, no. 2 (2002): 323–25. http://dx.doi.org/10.1115/1.1455028.

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Signals from several sensors were employed for real-time laser weld quality monitoring. Sheet-metal butt-joint laser welds of three quality classes (full penetration, partial penetration, gapped) were produced in experimental trials. Optical, air-born acoustic and plasma charge signals acquired during welding were subsequently Fourier-transformed and the spectra were analyzed individually to determine relationships to laser weld quality. The frequency bands most highly correlated to weld quality were identified by stepwise linear discriminant analysis (LDA) of the spectra. Testing of the quali

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8

Zhou, Pei Yun, Jing Li, Ning Min Shen, and Fang Li. "An Improved Weld Seam Extraction Method Using Saliency Detection for Pipe-Line Welding Based on GMAW and Passive Light." Applied Mechanics and Materials 598 (July 2014): 160–63. http://dx.doi.org/10.4028/www.scientific.net/amm.598.160.

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To meet the need of the automation and intelligence of welding process, it’s very important to extract the edge of weld seam accurately for seam tracking. According to the characteristics of GMAW (gas metal arc welding), an image sensing system of weld pool region based on CCD (Charge-coupled Device) is established. An improved method of weld seam extraction is presented. Firstly, weld pool region localization method using saliency detection is proposed, and weld seam region is obtained from the right edge of weld pool, then Sobel transformation and computation model is used to extract the edg

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9

Zheng, Kexin, Hongxiang Hu, Zhengbin Wang, Yugui Zheng, Liang Zhao, and Xianhe Shang. "Effect of Local Fluid Disturbance Induced by Weld Reinforcement Height on the Corrosion of a Low Alloy Steel Weld." Metals 13, no. 1 (2023): 103. http://dx.doi.org/10.3390/met13010103.

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Weld corrosion exists widely in the petrochemical industry and attracts great attention. Most research proves that weld corrosion originates from the material factors introduced during the welding process. However, it is noted that local fluid turbulence due to the weld reinforcement height (WRH) plays an important role in the non-uniform corrosion of welds in flowing media. Accordingly, the individual effect of the local flow on the weld corrosion of low alloy steel was analyzed by experiments and simulation in this study. Electrochemical measurements and morphology observation were conducted

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10

Tang, Jianwei, Liang Chen, Zhigang Li, Guoqun Zhao, Cunsheng Zhang, and Yang Zuo. "Evolution mechanisms of charge weld during porthole die extrusion of ZK60 Mg profile." Journal of Materials Processing Technology 300 (February 2022): 117401. http://dx.doi.org/10.1016/j.jmatprotec.2021.117401.

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11

Reggiani, Barbara, and Lorenzo Donati. "Experimental, numerical, and analytical investigations on the charge weld evolution in extruded profiles." International Journal of Advanced Manufacturing Technology 99, no. 5-8 (2018): 1379–87. http://dx.doi.org/10.1007/s00170-018-2595-4.

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12

Zhu, Xin Ming, Hao Zhan, and Zhi Gang Jiang. "Numerical Simulation of the Influence of Weld Model on the Response of Stiffened Plates under Blast Loading." Applied Mechanics and Materials 204-208 (October 2012): 943–48. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.943.

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Stiffened plates are used in a wide variety of engineering structures. Based on the published experiments, two kinds of weld models were established in simulation and the influence of weld model on the response of stiffened plates under blast loading was analyzed. The results show that the deflections and failure modes of stiffened plates from simulation are in good agreement with those from experiments, and that the weld model has little influence on the deformation and the critical charge of the plates. A simple model can be used for analyzing the large stiffened structures under blast loadi

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13

Peremit’ko, V. V., V. D. Kuznetsov, and A. N. Sokol. "Modifying Charge Input Optimization in Arc Surfacing with the Controlling Magnetic Influence." Applied Mechanics and Materials 682 (October 2014): 298–303. http://dx.doi.org/10.4028/www.scientific.net/amm.682.298.

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The hydrodynamic processes modelling in the weld pool under the influence of the electromagnetic bulk force was carried out. For the approximation of the model equations the finite difference method was used. The resulting system of linear algebraic equations was solved by simple iteration. The finding served the basis for determining the optimal scheme supply of powder material adding for the modification and alloying of the weld (build-up) metal in the presence of an external magnetic field.

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14

Negozio, Marco, Riccardo Pelaccia, Lorenzo Donati, Barbara Reggiani, Tommaso Pinter, and Luca Tomesani. "Finite Element Model Prediction of Charge Weld Behaviour in AA6082 and AA6063 Extruded Profiles." Journal of Materials Engineering and Performance 30, no. 6 (2021): 4691–99. http://dx.doi.org/10.1007/s11665-021-05752-x.

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15

De Sanctis, M., L. Paganini, A. Solina, and R. Valentini. "Disbonding of type 347 weld overlays induced by postweld heat treatments and hydrogen charge." Journal of Heat Treating 7, no. 1 (1989): 35–47. http://dx.doi.org/10.1007/bf02833186.

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16

Nanninga, N., C. White, and R. Dickson. "Charge Weld Effects on High Cycle Fatigue Behavior of a Hollow Extruded AA6082 Profile." Journal of Materials Engineering and Performance 20, no. 7 (2010): 1235–41. http://dx.doi.org/10.1007/s11665-010-9755-5.

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17

Widyianto, Agus, Ario Sunar Baskoro, and Gandjar Kiswanto. "Effect of Pulse Currents on Weld Geometry and Angular Distortion in Pulsed GTAW of 304 Stainless Steel Butt Joint." International Journal of Automotive and Mechanical Engineering 17, no. 1 (2020): 7687–94. http://dx.doi.org/10.15282/ijame.17.1.2020.16.0571.

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In this research, the effect of pulse currents on the weld geometry and angular distortion in pulsed GTAW (PGTAW) process in 3 mm thick SS-304 autogenous butt weld joint was investigated. Welding method uses pulse current and continuous current. The mean current and welding speed were kept constant with the peak current and base current were varied. During pulsed GTAW process, the arc condition was captured directly using a charge-coupled device (CCD) camera. Weld geometry was carried out using a digital microscope. Distortion was measured using Coordinate Measuring Machine (CMM). The results

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18

Engelhardt, Marcus, Daniel Behne, Norbert Grittner, André Neumann, Wilfried Reimche, and Christian Klose. "Non-destructive Testing of Longitudinal and Charge Weld Seams in Extruded Aluminum and Magnesium Profiles." Materials Today: Proceedings 2, no. 10 (2015): 4866–73. http://dx.doi.org/10.1016/j.matpr.2015.10.037.

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19

Bakker, A. J. den, L. Katgerman, and S. van der Zwaag. "Analysis of the structure and resulting mechanical properties of aluminium extrusions containing a charge weld interface." Journal of Materials Processing Technology 229 (March 2016): 9–21. http://dx.doi.org/10.1016/j.jmatprotec.2015.09.013.

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20

Pelaccia, Riccardo, Marco Negozio, Sara Di Donato, Barbara Reggiani, and Lorenzo Donati. "Extrusion Benchmark 2023: Effect of Die Design on Profile Speed, Seam Weld Quality and Microstructure of Hollow Tubes." Key Engineering Materials 988 (September 27, 2024): 47–62. http://dx.doi.org/10.4028/p-gnxrc5.

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The Extrusion Benchmark 2023 was focused on the evaluation of different die design strategies for the manufacturing of AA6082 hollow tubes (40 mm external diameter and 4 mm thickness) through a porthole die with 3 openings. The extrusion process was monitored in industrial environment in terms of press load, profiles speed, profiles exit temperature, and die temperatures under different processing conditions (air quenching, water quenching, nitrogen die cooling). Extruded profiles were then analyzed in terms of seam weld quality, charge weld extension and microstructure evolution for both air/

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21

Fan, Xiangfeng, and Lijian Yang. "Exploring Weak Magnetic Signal Characteristics of Pipeline Welds: Insights into Stress Non-Uniformity Effects." Sensors 24, no. 15 (2024): 5074. http://dx.doi.org/10.3390/s24155074.

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Weak magnetic detection technology can detect stress concentration areas in ferromagnetic materials. However, the stress non-uniform characteristics of pipeline welds lead to significant differences in stress distribution range and values between inner wall welds and outer wall welds. This discrepancy makes it crucial to further evaluate the impact of stress non-uniformity on magnetic signals. To study the magnetic signal characteristics under the influence of residual stress in weld seams, a magneto-mechanical analytical model was established based on the magnetic charge theory and the distri

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22

VYALKOV, V. G., S. N. GLAZUNOV, and P. A. TSIRKOV. "RESTORATION OF WORN SURFACES FROM CAST IRON AND STEEL PARTS BY ELECTRIC ARC WELDING WITH FERROMAGNETIC CHARGE." Fundamental and Applied Problems of Engineering and Technology 4, no. 2 (2020): 112–16. http://dx.doi.org/10.33979/2073-7408-2020-342-4-2-112-116.

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In experiment, worked out the parameters of deposition and the composition of the ferromagnetic charge, which ensure a defect-free weld layer (no pores, inclusions, hot and cold cracks) with a surface hardness of 52- 56 HRC without additional technological measures (heating products) and subsequent heat treatment.

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23

Crosio, Michele, David Hora, Christoph Becker, and Pavel Hora. "Realistic representation and investigation of charge weld evolution during direct porthole die extrusion processes through FE-analysis." Procedia Manufacturing 15 (2018): 232–39. http://dx.doi.org/10.1016/j.promfg.2018.07.214.

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24

Das, Debasish, Dilip Kumar Pratihar, and Gour Gopal Roy. "Effects of space charge on weld geometry and cooling rate during electron beam welding of stainless steel." Optik 206 (March 2020): 163722. http://dx.doi.org/10.1016/j.ijleo.2019.163722.

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25

Boczkal, Grzegorz, and Karolina Dadun. "Non-Equilibrium Crystallization with Magnetic Stirring in Pt/Inconel 625 Micro-Joints Welded by Capacitor Charge." Journal of Non-Equilibrium Thermodynamics 44, no. 1 (2019): 91–98. http://dx.doi.org/10.1515/jnet-2018-0025.

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Abstract The presented work describes issue of magnetic mixing and segregation of metals during the formation of micro-joints using the capacitor welding method. The key aspect is the very short weld time, which is below 2 ms. The Pt/Inconel 625 micro-joints have been tested in the work. The 100-μm platinum wire was welded to Inconel 625 with the same thickness. During the welding process, the capacitor discharge characteristics were recorded with the oscilloscope. This allowed for a mathematical description of phenomena occurring during the creation of the micro-joint. Observations of the mic

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26

Thongchuea, Nutchanat, Eakkachai Warinsiriruk, and Yin-Tien Wang. "Laser Welding on Cerclage Wire Joining in Femur Surgery." Applied Sciences 10, no. 7 (2020): 2407. http://dx.doi.org/10.3390/app10072407.

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Stainless steel wires with fiber-laser welding on lap joints are first proposed in this study to be used as cerclage wire joints for modern femur surgery, because of their potentially larger joint strength and less loosening failure than traditional joint devices. In this feasibility study, an experiment was set up to determine adequate parameters for the laser welding process in order to ensure that the wire joint of cerclage has good weld appearance, free oxidation, and suitable joint strength. A stainless steel wire 316L with a diameter of 1.6 mm, flare-welded on lap joint was used in the e

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27

Jiao, Ziquan, Haijian Qin, Xingyu Gao, et al. "Image Processing and Feature Extraction for Hull Structure GMAW Based on Weld Pool Visual Sensing." Journal of Sensors 2023 (May 18, 2023): 1–23. http://dx.doi.org/10.1155/2023/6317992.

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Image processing and feature information extraction based on the visual perception of the weld pool are considered essential components of intelligent welding quality monitoring of hull structure gas metal arc welding (GMAW). The unstable characteristics, such as large spatter, much smoke, and strong arc light during hull structure GMAW, lead to the blurring of image acquisition and the difficulty of contour extraction of the weld pool. The present study is aimed at addressing the practical issues from two perspectives, i.e., a spectrum-visual-sensing acquisition system and an image-processing

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28

Makienko, V. M., L. B. Leont’ev, P. V. Sokolov, and A. V. Atenyaev. "Development of Flux Cored Wire Using Concentrates and Mining Industry Waste Products in the Far East." Materials Science Forum 945 (February 2019): 1024–29. http://dx.doi.org/10.4028/www.scientific.net/msf.945.1024.

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The paper considers the problem of the development of new flux cored wires manufactured from concentrates and waste products of the mining industry of the Far Eastern Region. The authors provide the results of the analysis of the phase and chemical compositions of mineral raw materials, and experimental research. We have developed diagrams that offer a selection of different compositions of charge mixtures depending on the properties demanded from the weld deposited metal. We have also developed a flux cored wire for deposit welding of the automatic coupling locks of the rolling stock that ens

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29

Valberg, Henry, and Yawar Abbas Khan. "On the Fundamental Mechanism of Seam Welding in Extrusion of Aluminum Alloys." Key Engineering Materials 504-506 (February 2012): 529–34. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.529.

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In extrusion of hollow Al-profiles two kinds of pressure welds are present inside the extrusion. One is called the charge weld (CW) and forms across the boundary interface between two billets extruded in sequence. The other is the seam weld (SW) which extends longitudinally along the extruded profile and the extrusion metal behind each die bridge. It is considered to form because of the splitting of the extrusion metal over the die bridge into metal streams which flow past the bridge and rejoin as they encounter behind the bridge. Over the time attempts have been made to explain the mechanics

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30

Kobernik, N. V., A. C. Pankratov, Yu V. Andriyanov, A. L. Galinovskii, and A. G. Orlik. "Influence of the Titanium Carbide Content in a Filler Powder Wire Charge on the Structure of the Weld Metal." Russian Metallurgy (Metally) 2024, no. 6 (2024): 1268–73. https://doi.org/10.1134/s003602952470232x.

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31

Urbanovich, N. I., V. V. Melnichenko, K. E. Baranovsky, E. V. Rozenberg, A. A. Radchenko, and Z. V. Ignatovich. "STUDY OF THE EFFECT OF MODIFIERS WITH ULTRADISPERSED PARTICLES IN THE COATING OF THE ELECTRODE FOR MANUAL ARC WELDING ON THE TECHNOLOGICAL PARAMETERS IN MANUFACTURE OF THE ELECTRODE." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 2 (July 7, 2018): 108–12. http://dx.doi.org/10.21122/1683-6065-2018-2-108-112.

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It is established that inclusion of the modifier into the electrode coating allowed to change the grains of the weld metal from 20–60 to 10–30 mm, to change its morphology and to improve the welding-technological properties of the coated electrode. It is shown that the modifying additive introduced into the coating of a welding electrode containing ultrafine particles in an amount of 1% of the weight of the dry charge had not deteriorated the technological parameters during manufacture, and the integral index of the different thickness (Desp) of electrodes with standard and experimental coatin

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32

Honma, Y., and R. Kayano. "Study of Embrittlement of the 2.25Cr-1Mo-V Steel Weld Metal by Hydrogen Charge and High Pressure Hydrogen Gas Environment." Procedia Engineering 130 (2015): 571–82. http://dx.doi.org/10.1016/j.proeng.2015.12.269.

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33

Lou, Shumei, Anning Wang, Shuai Lu, Guangxin Guo, Chuandong Qu, and Chunjian Su. "Tensile property and micro-texture evolution of the charge weld in a billet-to-billet extrusion of AA6061 aluminum profile." International Journal of Advanced Manufacturing Technology 103, no. 1-4 (2019): 1309–23. http://dx.doi.org/10.1007/s00170-019-03573-w.

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34

Bae, K.-Y., and S.-J. Na. "A Study of Vision-Based Measurement of Weld Joint Shape Incorporating the Neural Network." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 208, no. 1 (1994): 61–69. http://dx.doi.org/10.1243/pime_proc_1994_208_060_02.

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Visual sensing of the surface geometry is often necessary to inspect and evaluate the quality of welded joints as well as to sense the transient distortion of a structure during welding for the feedback of its current geometry. This investigation presents a simple and non-contact digitization method of the vision-based system for measuring the three-dimensional surface geometry of the object distorted by welding. Its basic principles are based on the equation derived from the geometric optics, for which the illumination of the laser beam was controlled in the form of the projected plane. This

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35

Novac, Mariana Neli, and Bogdan Novac. "Researches on the Welding Behaviour of Two Brands of High-Alloy and High-Efficiency Electrodes Used to Charge High Wear Parts." Ovidius University Annals of Constanta - Series Civil Engineering 22, no. 1 (2020): 71–78. http://dx.doi.org/10.2478/ouacsce-2020-0008.

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Abstract The research performed and presented in this paper, aims to verify the welding behavior of electrodes developed experimentally, as well as the possibility of their use in production. A group of two electrodes produced by Bohler Company, Gridur 24 and B.M.N were taken as reference, in order to compare them in terms of the mechanical properties of the deposited metal, with the experimentally developed electrodes EICr12Fe and EIMn13SiFe. They were made determinations of the chemical composition of the deposited metal with the two types of electrodes, measurements regarding the hardness o

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36

Tan, Cedric, Kannoorpatti Krishnan, and Naveen Kumar Elumalai. "Effect of Heat Treatment on the Corrosion Behavior of Weld-Deposited Chromium Carbide-Based Hardfacing Alloys." Metals 14, no. 12 (2024): 1436. https://doi.org/10.3390/met14121436.

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The effects of heat treatment on the microstructure and corrosion behavior of chromium carbide-based hardfacing alloys deposited via gas metal arc welding were investigated. The hardfacing alloy, high chromium white iron (HCWI), containing 27 wt% Cr and 4.8 wt% C, was heat treated at 650 °C and 950 °C for six hours followed by natural cooling to room temperature. Microstructural characterization revealed that heat treatment promoted the transformation of austenite to ferrite and increased carbide precipitation. X-ray diffraction analysis identified the primary carbides as Cr7C3, which remained

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37

Kobernik, N. V., A. S. Pankratov, S. S. Sorokin, et al. "Effect of Chromium Carbide on the Structure and Properties of Weld-Deposited Metal Introduced into the Charge Mixture of a Flux-Cored Wire." Steel in Translation 53, no. 9 (2023): 761–66. http://dx.doi.org/10.3103/s0967091223090073.

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38

Alghannam, Lu, Ma, et al. "A Novel Method of Using Vision System and Fuzzy Logic for Quality Estimation of Resistance Spot Welding." Symmetry 11, no. 8 (2019): 990. http://dx.doi.org/10.3390/sym11080990.

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Finding a reliable quality inspection system of resistance spot welding (RSW) has become a very important issue in the automobile industry. In this study, improvement in the quality estimation of the weld nugget’s surface on the car underbody is introduced using image processing methods and training a fuzzy inference system. Image segmentation, mathematical morphology (dilation and erosion), flood fill operation, least-squares fitting curve and some other new techniques such as location and value based selection of pixels are used to extract new geometrical characteristics from the weld nugget

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39

SHIKOVA, I. I., N. A. KAICHEVA, and G. G. MIKHAILOV. "OPTIMIZATION OF THE STRUCTURE OF CERAMIC FLUX GRANULES." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 78, no. 5 (2022): 445–51. http://dx.doi.org/10.32339/0135-5910-2022-5-445-451.

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Currently, ceramic welding flux is widely used for automatic welding, since it has a low cost in combination with the required properties. One of the important advantages of this flux is the ability to alloy the weld. However, there are some disadvantages such as the strength of the granules and the hygroscopicity of the ceramic flux. Low strength leads to rapid abrasion of granules and formation of dust, therefore, to an increase in packed density and poor separation of the slag crust. In the presented work, the authors have considered the structure of granules of ceramic flux used inautomati

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40

MATUSHKIN, I. YU, А. A. GLININ, and D. A. DEGAI. "OPTIMIZATION OF THE STRUCTURE OF CERAMIC FLUX GRANULES." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 78, no. 5 (2022): 431–34. http://dx.doi.org/10.32339/0135-5910-2022-5-431-434.

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Currently, ceramic welding flux is widely used for automatic welding, since it has a low cost in combination with the required properties. One of the important advantages of this flux is the ability to alloy the weld. However, there are some disadvantages such as the strength of the granules and the hygroscopicity of the ceramic flux. Low strength leads to rapid abrasion of granules and formation of dust, therefore, to an increase in packed density and poor separation of the slag crust. In the presented work, the authors have considered the structure of granules of ceramic flux used inautomati

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41

Zhang, Wang, Jiashuan Bao, Chenhui Xu, Pengfeng Zhu, Xiangliang Pan, and Rui Li. "Electrochemical Redox In-Situ Welding of Silver Nanowire Films with High Transparency and Conductivity." Inorganics 10, no. 7 (2022): 92. http://dx.doi.org/10.3390/inorganics10070092.

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Silver nanowire (AgNW) networks with high transparency and conductivity are crucial to developing transparent conductive films (TCFs) for flexible optoelectronic devices. However, AgNW-based TCFs still suffer from the high contact resistance of AgNW junctions with both the in-plane and out-of-plane charge transport barrier. Herein, we report a rapid and green electrochemical redox strategy to in-situ weld AgNW networks for the enhanced conductivity and mechanical durability of TCFs with constant transparency. The welded TCFs show a marked decrease of the sheet resistance (reduced to 45.5% of i

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Knapiński, Marcin, Teresa Bajor, Anna Kawałek, and Grzegorz Banaszek. "Analysis of Copper Welding Parameters during the Manufacture of Tubular Profiles Using Unconventional Extrusion Processes." Materials 17, no. 19 (2024): 4737. http://dx.doi.org/10.3390/ma17194737.

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In recent years, there has been a lack of information in the literature regarding the extrusion and connection of closed profiles from oxygen-free copper in bridge dies. Available studies contain information on the processes of extrusion and connection of profiles from aluminium alloys and various types of steel. However, there is a lack of detailed data on the values of technological parameters for which copper is joined in the extrusion process. Therefore, one of the goals of this work is to fill the gap in the literature regarding the extrusion of oxygen-free copper in bridge dies. In this

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Marko, Angelina, Stefan Bähring, Julius Raute, Max Biegler, and Michael Rethmeier. "Quality Prediction in Directed Energy Deposition Using Artificial Neural Networks Based on Process Signals." Applied Sciences 12, no. 8 (2022): 3955. http://dx.doi.org/10.3390/app12083955.

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The Directed Energy Deposition process is used in a wide range of applications including the repair, coating or modification of existing structures and the additive manufacturing of individual parts. As the process is frequently applied in the aerospace industry, the requirements for quality assurance are extremely high. Therefore, more and more sensor systems are being implemented for process monitoring. To evaluate the generated data, suitable methods must be developed. A solution, in this context, was the application of artificial neural networks (ANNs). This article demonstrates how measur

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Janeček, Michal, Petra Kührová, Vojtěch Mlýnský, Michal Otyepka, Jiří Šponer, and Pavel Banáš. "W-RESP: Well-Restrained Electrostatic Potential-Derived Charges. Revisiting the Charge Derivation Model." Journal of Chemical Theory and Computation 17, no. 6 (2021): 3495–509. http://dx.doi.org/10.1021/acs.jctc.0c00976.

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Reimann, Lukasz, Zbigniew Brytan, and Grzegorz Jania. "Influence of Filler Metal on Electrochemical Characteristics of a Laser-Welded CoCrMoW Alloy Used in Prosthodontics." Materials 15, no. 16 (2022): 5721. http://dx.doi.org/10.3390/ma15165721.

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This paper sought to determine corrosion resistance changes in the artificial saliva of a CoCrMoW-based alloy used for dental prostheses under Nd:YAG laser welding with CoCr alloy and stainless steel wire filler metals. The paper presents the corrosion characteristics of such joints, including the next stage of porcelain-fused-to-metal (PFM) firing. Corrosion tests were performed by electrochemical methods registering anodic polarization curves and electrochemical impedance spectroscopy (EIS). The microstructures were assessed by scanning microscopy (SEM) and chemical composition analysis (EDS

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Dudzik, Krzysztof, and Wojciech Jurczak. "Influence of Friction Stir Welding (FSW) on Mechanical and Corrosion Properties of AW-7020M and Aw-7020 Alloys." Polish Maritime Research 23, no. 3 (2016): 86–90. http://dx.doi.org/10.1515/pomr-2016-0036.

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Abstract Friction welding associated with mixing the weld material (FSW - Friction Stir Welding ) is an alternative to MIG and TIG welding techniques for Al-alloys. This paper presents experimental results obtained from static tension tests on specimens made of AW-7020M and AW-7020 alloys and their joints welded by using FSW method carried out on flat specimens, according to Polish standards : PN-EN ISO 4136:2011 and PN-EN ISO 6892-1:2010. Results of corrosion resistance tests are also presented. The tests were performed by using the electrochemical impedance spectroscopy (EIS). EIS measuremen

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Petrov, O. I. "Equalizing the battery charges of rechargeable accumulators." IOP Conference Series: Materials Science and Engineering 1303, no. 1 (2024): 012007. http://dx.doi.org/10.1088/1757-899x/1303/1/012007.

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Abstract Charge imbalances in high-voltage batteries, including battery cell arrays, such as lithium-ion in hybrid vehicles, tend to develop and increase over time as the batteries are charged and discharged, or even when the battery remains charged but not in use. This reduces the efficiency of the battery charging and discharging modes, and limits battery life and capacity. The article describes a method and device for performing the charge equalization operation when charging a storage battery. The elements of the charger circuit have been selected, the parameters of which are sufficient fo

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Karpov, A. S. "About improving regulation of the procedural order and the limits of changing the charges by the court." Proceedings of Southwest State University. Series: History and Law 14, no. 5 (2024): 130–42. http://dx.doi.org/10.21869/2223-1501-2024-14-5-130-142.

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Relevance. The article is devoted to the analysis of the problems of law enforcement in the field of changing the charge by the court of first instance. The article examines a number of issues: the possibility of changing the charge if a criminal case is terminated on non-rehabilitating grounds; granting the court a power to initiate a change in the charge; establishing the obligation of the public prosecutor to change the charge; changing the charge by the court if crime is reclassifying as a private prosecution crime; the limits of changing the charge by the court; changing the charge if a c

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Watanabe, Osamu, Takashi Enomoto, Katsuhisa Nishi, Toshiko Matano, and Tohru Tominaga. "Seasonal Change of Germination of Poa crassinervis Honda." Journal of Weed Science and Technology 41, no. 4 (1997): 315–22. http://dx.doi.org/10.3719/weed.41.315.

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Dușa, Petru, and Radu Baciu Lupașcu. "Analysis of Residual Stresses in Steel Welded Parts Using Ultrasounds." Applied Mechanics and Materials 657 (October 2014): 326–31. http://dx.doi.org/10.4028/www.scientific.net/amm.657.326.

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<span><p><span style="font-family: Times New Roman; font-size: medium;" face="Times New Roman" size="3">Welding is an assembly process used in different industries. The residual stresses influences fatigue behavior, fracture strength, corrosion resistance and for these reasons knowing their values are important. During time, many destructive as well as nondestructive methods to evaluate residual stresses were developed. Stress is evaluated by inducing a sound wave with the frequency of several megahertz into the sample and measuring velocity related parameters. Besides stress

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