Journal articles: 'Spot joining'

1

FUJIMOTO, Mitsuo. "Friction Stir Spot Welding (Friction Spot Joining)." JOURNAL OF THE JAPAN WELDING SOCIETY 78, no. 6 (2009): 520–23. http://dx.doi.org/10.2207/jjws.78.520.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Fujimoto, M., M. Inuzuka, S. Koga, and Y. Seta. "Development of Friction Spot Joining." Welding in the World 49, no. 3-4 (March 2005): 18–21. http://dx.doi.org/10.1007/bf03266470.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

FUKUHARA, Kazumi. "Friction Spot Joining (FSJ) Robot Technology." JOURNAL OF THE JAPAN WELDING SOCIETY 85, no. 7 (2016): 652–56. http://dx.doi.org/10.2207/jjws.85.652.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Connolly, Christine. "Friction spot joining in aluminium car bodies." Industrial Robot: An International Journal 34, no. 1 (January 16, 2007): 17–20. http://dx.doi.org/10.1108/01439910710718397.

Full text

Abstract:

PurposeTo review the capabilities of a new method of welding aluminium sheets for car body construction.Design/methodology/approachDescribes the friction spot joining technique, and how it differs from friction stir welding. Describes the tests carried out at the University of Warwick to compare this with other aluminium sheet joining techniques.FindingsCompared with resistance spot welding, this technique is simple, and physically and electromagnetically clean. Its low energy requirement per joint and low running costs give it advantages in joining thin materials, and eventual recycling is much easier than with self‐piercing riveting joints.Originality/valueDescribes the motivation behind the continuing development of an all‐aluminium joining technique, and compares spot friction joining with self‐pierce riveting and resistance spot welding.

APA, Harvard, Vancouver, ISO, and other styles

5

Sugimoto, Yukihiro, Kojiro Tanaka, and Katsuya Nishiguchi. "Spot joining of aluminum and dissimilar materials." Journal of Japan Institute of Light Metals 69, no. 2 (February 28, 2019): 74–80. http://dx.doi.org/10.2464/jilm.69.74.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ma, Ninshu, Atsushi Kunugi, Tei Hirashima, Katsumi Okubo, and Mitsuhiro Kamioka. "FEM simulation for friction spot joining process." Welding International 23, no. 1 (January 2009): 9–14. http://dx.doi.org/10.1080/09507110802348892.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Herold, H., and K. Koppe. "New joining technique using resistance spot welding." Welding International 3, no. 1 (January 1989): 69–71. http://dx.doi.org/10.1080/09507118909446585.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Manente André, Natalia, Jorge F. dos Santos, and Sergio T. Amancio-Filho. "Evaluation of Joint Formation and Mechanical Performance of the AA7075-T6/CFRP Spot Joints Produced by Frictional Heat." Materials 12, no. 6 (March 17, 2019): 891. http://dx.doi.org/10.3390/ma12060891.

Full text

Abstract:

The development of lightweight hybrid metal–polymer structures has recently attracted interest from the transportation industry. Nevertheless, the possibility of joining metals and polymers or composites is still a great challenge. Friction Spot Joining (FSpJ) is a prize-winning friction-based joining technique for metal–polymer hybrid structures. The technology is environment-friendly and comprises very short joining cycles (2 to 8 s). In the current work, aluminum alloy 7075-T6 and carbon-fiber-reinforced polyphenylene sulfide (CF-PPS) friction spot joints were produced and evaluated for the first time in the literature. The spot joints were investigated in terms of microstructure, mechanical performance under quasi-static loading and failure mechanisms. Macro- and micro-mechanical interlocking were identified as the main bonding mechanism, along with adhesion forces as a result of the reconsolidated polymer layer. Moreover, the influence of the joining force on the mechanical performance of the joints was addressed. Ultimate lap shear forces up to 4068 ± 184 N were achieved in this study. A mixture of adhesive–cohesive failure mode was identified, while cohesive failure was dominant. Finally, a qualitative comparison with other state-of-the-art joining technologies for hybrid structures demonstrated that the friction spot joints eventually exhibit superior/similar strength than/to concurrent technologies and shorter joining times.

APA, Harvard, Vancouver, ISO, and other styles

9

Kaščák, Ľuboš, Emil Spišák, Janka Majerníková, and René Kubík. "Clinching of Dual-Phase Steels as an Alternative to Resistance Spot Welding." Materials Science Forum 919 (April 2018): 68–77. http://dx.doi.org/10.4028/www.scientific.net/msf.919.68.

Full text

Abstract:

Resistance spot welding is the dominant method for joining the materials in the car body production. Progressive materials are being developed to improve the car’s fuel consumption and the safety of passengers as well. Advanced high strength dual-phase steels are such materials. Despite of the dominancy of resistance spot welding in car body production, innovative methods are being developed to reduce the joining time, process costs and improve the load-bearing capacity of a particular joint. Mechanical clinching is such process. The research focused on the evaluation of the possibility of clinching as an alternative method to the resistance spot welding. Experimental samples were prepared from dual-phase steel sheets DP600. The samples were tested by uniaxial tensile test, microhardness test and metallographic observations. Both joining methods have advantages and disadvantages which could destine them for specific utilization. Clinching joining is a progressive, fast and low-cost technique, but the joint’s load-bearing capacity is lower when compared to resistance spot weld.

APA, Harvard, Vancouver, ISO, and other styles

10

Černý, Michal, Petr Dostál, and Vojtěch Kumbár. "Visualization of Spot- welding Resistance." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 64, no. 1 (2016): 15–29. http://dx.doi.org/10.11118/actaun201664010015.

Full text

Abstract:

This contribution devotes to monitoring of processes running during joining of steel sheets by incadescent so called point welding using non-destructive trial method – acoustic emission (AE). The joining process is detailed described within experimental measuring from the point of view of metallurgic effects runnig during weld creation (records obtained by means of AE method). It takes into consideration quality of joined steels within welding data of steel producer. Steel welding (determined by chemical composition) during mechanical verification and firmness of welds consider results of measurement AE and fracture effect of point joints. The measurement also demonstrates conclusion about connection of metallurgic processes with material wave effects (AE measurement) and their impact on firmness of joint at steel with guaranteed welding, difficult welding and at their potential combination.

APA, Harvard, Vancouver, ISO, and other styles

11

Chun, Chang Keun, Heung Ju Kim, Hyeon Jin Cho, Teuk Ki Kim, and Woong Seong Chang. "Mechanical and Microstructural Properties of Dissimilar Friction Spot Welded Aluminum Alloy." Materials Science Forum 580-582 (June 2008): 389–92. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.389.

Full text

Abstract:

Dissimilar friction spot lap joining of Al5052 and Al6022 sheet has been investigated using a combination of joining parameters, thickness and upper plate material. The joining parameters such as tool rotating speed, plunging depth and joining time have been considered. The maximum tensile shear strength has been observed at tool rotating speed of 1000rpm, dwell time of 2.5sec, plunging depth of 1.8 mm and Al 6022 as upper plate. The maximum tensile shear fractured load of the joint was about 80% of that of the similar Al 5052 alloys joint.

APA, Harvard, Vancouver, ISO, and other styles

12

SHIMIZU, Motohiro, Takashi KOSUGI, Takashi MIYAJIMA, Yutaka KOMATSU, Shinichi ANZAWA, and Hajime HURUHATA. "822 Study on the Practical Use of Friction Spot Joining : Temperature Analysis in Friction Spot Joining of the Al Alloy (A5052)." Proceedings of Conference of Hokuriku-Shinetsu Branch 2009.46 (2009): 331–32. http://dx.doi.org/10.1299/jsmehs.2009.46.331.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Kaščák, Ľuboš, Emil Spišák, and Jacek Mucha. "CLINCHRIVET AS AN ALTERNATIVE METHOD TO RESISTANCE SPOT WELDING." Acta Mechanica et Automatica 7, no. 2 (June 1, 2013): 79–82. http://dx.doi.org/10.2478/ama-2013-0014.

Full text

Abstract:

Abstract Various materials are used in car body production which are not always possible to join by conventional joining methods such as resistance spot welding. Therefore ClinchRivet method seem to be possible alternative. The paper deals with evaluation of properties of the joints made by mechanical joining method - ClinchRivet. The joint is made with the using of a special rivet, which is pushed into the joined materials by the flat punch. Following materials were used for joining of this method: DX51D+Z and H220PD steel sheets. The tensile test for observing the carrying capacities and metallographicall analysis were used for the evaluation of joint properties. Some results of the tests of ClinchRivet joints were compared to the properties of the joints made by resistance spot welding.

APA, Harvard, Vancouver, ISO, and other styles

14

Goushegir, Seyed Mohammad, Jorge F. dos Santos, and Sergio T. Amancio-Filho. "Fatigue Performance of Metal–Composite Friction Spot Joints." Materials 14, no. 16 (August 11, 2021): 4516. http://dx.doi.org/10.3390/ma14164516.

Full text

Abstract:

Friction spot joining is an alternative technique for joining metals with polymers and composites. This study investigated the fatigue performance of aluminum alloy 2024/carbon-fiber-reinforced poly(phenylene sulfide) joints that were produced with friction spot joining. The surface of the aluminum was pre-treated using various surface treatment methods. The joined specimens were tested under dynamic loading using a load ratio of R = 0.1 and a frequency of 5 Hz. The tests were performed at different percentages of the lap shear strength of the joint. Three models—exponential, power law, and wear-out—were used to statistically analyze the fatigue life of the joints and to draw the stress–life (S–N) curves. The joints showed an infinite life of 25–35% of their quasi-static strength at 106 cycles. The joints surpassing 106 cycles were subsequently tested under quasi-static loading, showing no considerable reduction compared to their initial lap shear strength.

APA, Harvard, Vancouver, ISO, and other styles

15

Chun, Chang-Keun, Heung-Ju Kim, and Woong-Seong Chang. "Friction Stir Spot Joining on Aluminum Alloy for Transportation." Journal of Welding and Joining 26, no. 6 (December 31, 2008): 23–29. http://dx.doi.org/10.5781/kwjs.2008.26.6.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Goushegir, S. M. "Friction spot joining (FSpJ) of aluminum-CFRP hybrid structures." Welding in the World 60, no. 6 (July 1, 2016): 1073–93. http://dx.doi.org/10.1007/s40194-016-0368-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Holtschke, Niels, and Sven Jüttner. "Joining lightweight components by short-time resistance spot welding." Welding in the World 61, no. 2 (December 19, 2016): 413–21. http://dx.doi.org/10.1007/s40194-016-0398-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Neugebauer, Reimund, Markus Rössinger, Martin Wahl, Frank Schulz, Alexander Eckert, and W. Schützle. "Predicting Dimensional Accuracy of Mechanically Joined Car Body Assemblies." Key Engineering Materials 473 (March 2011): 973–80. http://dx.doi.org/10.4028/www.scientific.net/kem.473.973.

Full text

Abstract:

Mechanical joining of complex car body components is an essential part of lightweight construction concepts in the field of car body manufacturing. Besides the mechanical behavior of the joints, the influence on the dimensional accuracy is of particular interest, as joining techniques like clinching or self-piercing riveting cause distortion comparable to spot welding. In recent years, a lot of simplified models using the FE-Method to predict the distortion of assemblies caused by welding (weld seams, spot welds) were presented and commercialized. In contrast to thermal joining technologies, there are no such simplified models with practical relevance existing in the mechanical joining technology sector. In this paper, a new method to predict distortion, caused by different mechanical joining technologies, including effects from previous forming processes, and clamping conditions, is presented. The validation of the simplified model takes place due to an extensive design of expe-riments. It can be proved that the distortion of simple as well as of complex specimens can be relia-bly predicted.

APA, Harvard, Vancouver, ISO, and other styles

19

Szallies, Konstantin, Michael Friedmann, Martin Bielenin, and Jean Pierre Bergmann. "One-Sided Resistance Spot Welding of Plastic-Metal Hybrid Joints - Characterization of the Joining Zone." Key Engineering Materials 809 (June 2019): 183–89. http://dx.doi.org/10.4028/www.scientific.net/kem.809.183.

Full text

Abstract:

Polymer-metal-hybrid components show a high potential regarding to lightweight applications. In particular, due to their fundamental differences in chemical and physical properties, new approaches must be developed for common industrial joining processes. In this study a new approach in order to characterize the joining zone formation for thermal direct joining based on resistance spot welding is reported. The feasibility of joining in half-section set-up using a coaxial electrode arrangement was investigated. The impact of the welding parameters on the joining zone formation was investigated. The parameters influencing the melting layer formation were pointed out.

APA, Harvard, Vancouver, ISO, and other styles

20

Habib, Lebbal, Reffas S. Ahmed, Berrekia Habib, and Mario Guagliano. "Experimental Study of Spot Weld Parameters in Resistance Spot Welding Process." Mechanics and Mechanical Engineering 22, no. 1 (August 12, 2020): 179–86. http://dx.doi.org/10.2478/mme-2018-0016.

Full text

Abstract:

AbstractResistance spot welding is a comparatively clean and efficient welding process that is widely used in sheet metal joining. This process involves electrical, thermal and mechanical interactions. Resistance spot welding primarily takes place by localized melting at the interface of the sheets followed by its quick solidification under sequential control of water cooled electrode pressure and flow of required electric current for certain duration. In this experimental work the tensile tests and the spot weld diameter were studied. The objectives of this analysis is to understand the physics of the process and to show the influence of the electrical current, weld time and the type material in resistance spot welding process.

APA, Harvard, Vancouver, ISO, and other styles

21

Gradinger, Rudolf, Nikolay Sotirov, Gottfried Rettenbacher, Christoph Pangerl, Philipp Dörner, Stefan Minichshofer, Almedin Becirovic, Carsten Melzer, and Dirk Uffelmann. "High Strength Aluminium Sheet Metal Joining by Resistance Spot Welding." Materials Science Forum 765 (July 2013): 761–65. http://dx.doi.org/10.4028/www.scientific.net/msf.765.761.

Full text

Abstract:

Aluminium AA7075 is well known as extrusions, plate or sheet metal predominately in aerospace applications. The continuing efforts for reducing the weight but still maintaining the safety of vehicle structures are opening up the way for this alloy in automotive applications. Since this branch is very different to space as well as aircraft industries in manufacturing methods, costs and production numbers, the development of appropriate processes is necessary. After showing a high potential for deep drawing of AA7075 sheets under elevated temperatures, the joining technology options are now under investigation too. Since spot welding is very common in automotive body-in-white manufacturing, an innovative version of this process is evaluated for applicability for welding AA7075-T6 sheets to each other and to proven automotive aluminium alloys. The results of sample weldments, including mechanical static strength, micrographs, hardness, radiography and parameters for a stable process range, are presented.

APA, Harvard, Vancouver, ISO, and other styles

22

Lathabai, S., M. J. Painter, G. M. D. Cantin, and V. K. Tyagi. "Friction spot joining of an extruded Al–Mg–Si alloy." Scripta Materialia 55, no. 10 (November 2006): 899–902. http://dx.doi.org/10.1016/j.scriptamat.2006.07.046.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Yongbing, LI, MA Yunwu, LOU Ming, ZHANG Guotao, ZHANG Qingxin, QI Lin, and DENG Lin. "Advances in Spot Joining Technologies of Lightweight Thin-walled Structures." Journal of Mechanical Engineering 56, no. 6 (2020): 125. http://dx.doi.org/10.3901/jme.2020.06.125.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Miles, M. P., K. Kohkonen, S. Packer, R. Steel, B. Siemssen, and Y. S. Sato. "Solid state spot joining of sheet materials using consumable bit." Science and Technology of Welding and Joining 14, no. 1 (January 2009): 72–77. http://dx.doi.org/10.1179/136217108x341193.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Szallies, Konstantin, Martin Bielenin, Klaus Schricker, Jean Pierre Bergmann, and Christian Neudel. "Single-side resistance spot joining of polymer-metal hybrid structures." Welding in the World 63, no. 4 (March 16, 2019): 1145–52. http://dx.doi.org/10.1007/s40194-019-00728-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Ohashi, Ryoji, Mitsuo Fujimoto, Sergey Mironov, Yutaka S. Sato, and Hiroyuki Kokawa. "Friction Spot Joining of High Strength Steel Sheets for Automotives." Welding in the World 53, no. 5-6 (May 2009): 23–27. http://dx.doi.org/10.1007/bf03266711.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Campanelli, L. C., U. F. H. Suhuddin, Jorge Fernandez Dos Santos, and N. G. Alcantara. "Preliminary Investigation on Friction Spot Welding of AZ31 Magnesium Alloy." Materials Science Forum 706-709 (January 2012): 3016–21. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.3016.

Full text

Abstract:

Friction spot welding (FSpW) is a recent solid state welding process developed and patented by GKSS Forschungszentrum (now Helmholtz-Zentrum Geesthacht), Germany. A spot-like connection is produced by means of an especially designed non-consumable tool consisting of pin, sleeve and clamping ring that creates a joint between sheets in overlap configuration through frictional heat and plastic deformation. FSpW offers many advantages over conventional spot joining techniques including high energy efficiency, surface quality and environmental compatibility. Comparing with friction stir spot welding, FSpW produces a weld without keyhole on the surface at the end of the joining process. In the present study, the possibility of joining AZ31 magnesium alloy by FSpW technique was evaluated by using different welding parameters (rotational speed, plunge depth and dwell time), aiming to produce high quality connections. Microstructural features were analyzed by light optical microscope and mechanical performance was investigated by microhardness test and lap shear test. Microstructure analysis revealed that defects free welds could be produced. A slight decrease in grain size of the stir zone was observed causing a slight increase in the microhardness of this region. The preliminary lap shear data demonstrated that the weld strength is comparable to other welding process.

APA, Harvard, Vancouver, ISO, and other styles

28

Abdullah, Isam Tareq, Sabah Khammass Hussein, and Abbas Khammas Hussein. "Joining of AA6061 to polyvinyl chloride via hot extrusion." International Journal of Structural Integrity 11, no. 2 (October 29, 2019): 286–302. http://dx.doi.org/10.1108/ijsi-08-2019-0081.

Full text

Abstract:

Purpose The purpose of this paper is to join aluminium alloy AA6061 with polyvinyl chloride (PVC) sheets using the friction spot technique. Design/methodology/approach The AA6061 specimen was drilled with a semi-conical hole and put over the PVC specimen with a lap configuration. A friction spot technique was used to generate the required heat to melt and extrude the PVC through the aluminium hole. In this study, three process parameters were used: time, plunging depth and rotating speed of the tool. Thermal finite element model was built to analyse the process temperature. Effect of the process parameters on the joint shear strength and temperature was analysed using the design of experiments method. The microstructure investigation of the joint cross section was examined. Findings The input heat melted and extruded the polymer into the aluminium hole with the aid of tool pressure. A mechanical interlock was observed at the interface line between the polymer and aluminium. The scattered aluminium fragments into the molten polymer increased the shear strength of the joint. The hole diameter exhibited the highest effect on the joint strength compared with the other parameters. Specimen of minimum hole diameter recorded the maximum shear strength of 224 MPa. The proposed model gave a good agreement with the experimental data. Originality/value For the first time, the PVC was joined with AA6061 by the hot extrusion using the friction spot technique. The shear strength of joint reached 7.5 times of the base material (PVC).

APA, Harvard, Vancouver, ISO, and other styles

29

Peng, He, Xian Quan Jiang, and Dao Lun Chen. "Ultrasonic Spot Welding of an Aluminum Alloy for Automotive Applications." Materials Science Forum 941 (December 2018): 735–40. http://dx.doi.org/10.4028/www.scientific.net/msf.941.735.

Full text

Abstract:

To reduce fuel consumption and the resulting environment-damaging, climate-changing, costly, human death-causing emissions, lightweight aluminum alloys have been increasingly used in the transportation industry due to their low density, high specific strength, superior ductility, machinability, recyclability, and environmental friendliness. The structural applications of such aluminum alloys in the automotive industry unavoidably entail welding and joining process. While it is challenging to weld aluminum sheets via the conventional resistance spot welding developed mainly for joining steel sheets, an emerging solid-state joining technology known as ultrasonic spot welding (USW) is promising for joining aluminum alloys. This study was aimed to examine the feasibility of welding a 6022 Al alloy similarly (AA6022-to-AA6022) and dissimilarly (AA6022-to-ZEK100) in relation to welding energy. It was observed that there was a significant change in the interface grain size in the similar welding, exhibiting a characteristic fine-grained “necklace”-like structure along the welding line, while an intermetallic diffusion layer was present in the dissimilar welding of aluminum-to-magnesium alloys, and its thickness increased as the welding energy increased. The tensile lap shear strength first increased, reached its peak value at a certain energy, and then decreased with increasing welding energy. The strength of the dissimilar welded joints was about 55% of that of the similar welded joints. Three different modes of interfacial failure, nugget pull-out, and transverse through-thickness (TTT) crack growth were observed in the similar welded joints, while only interfacial failure was present in the dissimilar welded joints.

APA, Harvard, Vancouver, ISO, and other styles

30

Zhou, Xingwen, Yuhua Chen, Shuhan Li, Yongde Huang, Kun Hao, and Peng Peng. "Friction Stir Spot Welding-Brazing of Al and Hot-Dip Aluminized Ti Alloy with Zn Interlayer." Metals 8, no. 11 (November 8, 2018): 922. http://dx.doi.org/10.3390/met8110922.

Full text

Abstract:

Friction stir spot welding (FSSW) of Al to Ti alloys has broad applications in the aerospace and automobile industries, while its narrow joining area limits the improvement of mechanical properties of the joint. In the current study, an Al-coating was prepared on Ti6Al4V alloy by hot-dipping prior to joining, then a Zn interlayer was used during friction stir joining of as-coated Ti alloy to the 2014-Al alloy in a lap configuration to introduce a brazing zone out of the stir zone to increase the joining area. The microstructure of the joint was investigated, and the joint strength was compared with the traditional FSSW joint to confirm the advantages of this new process. Because of the increase of the joining area, the maximum fracture load of such joint is 110% higher than that of the traditional FSSW joint under the same welding parameters. The fracture load of these joints depends on the joining width, including the width of solid-state bonding region in stir zone and brazing region out of stir zone.

APA, Harvard, Vancouver, ISO, and other styles

31

Huang, Chuang, Yang Yang Gao, Hui Xia Liu, Hao Chen, Pin Li, and Xiao Wang. "Multi-Factors Interaction Effects of Process Parameters on the Joint Strength of Laser Transmission Joining between PC and PA66." Key Engineering Materials 579-580 (September 2013): 91–96. http://dx.doi.org/10.4028/www.scientific.net/kem.579-580.91.

Full text

Abstract:

This paper presents a laser transmission joining (LTJ) experiment between thermoplastic Polycarbonate (PC) and glass reinforced nylon (PA66GF) using diode laser equipment. Laser transmission joining experimental design and experiment are carried out according to a single process parameters window. Response surface methodology (RSM) in Design-Expert v7 software is employed to develop mathematical models between LTJ process parameters and joint strength. The interaction effects of joining process parameters (line energy, spot diameter, clamp pressure) on the joint strength are investigated using analysis-of-variance (ANOVA), the result shows that the interaction effect of line energy and spot diameter has maximum influence on the joint quality. Finally, the predicted values from mathematical models developed by RSM are compared with the experimental values and it is found that they are nearly agreed with each other. The purpose of predicting joint strength based on reasonable process parameters is achieved.

APA, Harvard, Vancouver, ISO, and other styles

32

Kaščák, Luboš, Emil Spišák, Emília Spišáková, and Ivan Gajdoš. "Clinching - An Innovative Trend in Joining of Combined Materials in Car Body Production." Materials Science Forum 818 (May 2015): 217–20. http://dx.doi.org/10.4028/www.scientific.net/msf.818.217.

Full text

Abstract:

Various ferrous and non-ferrous materials and their combinations are used in car body production in automotive industry. The most commonly used method for joining the materials is resistance spot welding. Some materials or combinations of materials are very difficult or impossible to join by resistance spot welding. Therefore, car producers are seeking for alternative joining methods. One of the innovative joining alternatives is clinching. The paper presents the results of evaluation of clinched joint properties. The high-strength dual-phase steel sheet DP600 in combination with the drawing grade steel sheets DC06, DX53D+Z and DX51D+Z were used for experiments. The influence of position of the sheets relative to the punch and die of the tool on the carrying capacities of the clinched joints was observed as well. The tension test and metallographical analysis were used for the evaluation of clinched joint properties.

APA, Harvard, Vancouver, ISO, and other styles

33

Chang, Woong Seong, Hyeon Jin Cho, Heung Ju Kim, and Chang Keun Chun. "Evaluation of Friction Spot Joining Weldability of Al Alloys for Automotive." Materials Science Forum 539-543 (March 2007): 411–16. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.411.

Full text

Abstract:

In an attempt to optimize the friction spot joining process of Al alloys for automobiles (Al 5000 and Al 6000 series, thickness 1mm), effects of joining parameters such as tool rotating speed, plunging depth and dwelling time on the weld joints properties were evaluated. Experimental tests were carried out for lap joined Al plates. A wide range of joining conditions could be applied to join Al alloys for automobiles without defects in the weld zone except for certain welding conditions with an insufficient heat input. The microstructures and hardness variations in the weld regions are discussed. The microstructures of welds, corresponding to the pin hole, have dynamic-recrystallized grain similar to stir zone in FSW weld. In hardness distribution, minimum hardness region was located about 6-mm away from the weld center, corresponding to the shoulder radius of the tool. For each weld the results from tensile-shear tests are also presented. For sound joints without defects, tensile shear strength of weld joints was higher approximately 230% than acceptable criteria of tensile shear strength of electrical resistance spot-welded joints for aluminum (MIL-W-6858D).

APA, Harvard, Vancouver, ISO, and other styles

34

Chang, Woong Seong, Chang Keun Chun, Heung Ju Kim, Hyeon Jin Cho, and Teuk Ki Kim. "Mechanical and Microstructural Properties of Friction Spot Joined 5052 and 6111 Al Alloys." Materials Science Forum 580-582 (June 2008): 435–38. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.435.

Full text

Abstract:

Friction spot joining was used to make lap joints on strips of 5052 and 6111 aluminum alloys. The influence of joining parameters such as tool rotation speeds, plunge depths and dwell times on the weld joint properties were evaluated. A wide range of joining conditions could be applied to join Al alloys without defects in the weld except for certain welding conditions with an insufficient heat input. The microstructures and hardness variations in the welds were discussed. The microstructures of welds, corresponding to the pin hole, have dynamic-recrystallized grain similar to stir zone in FSW weld. In hardness distribution, minimum hardness region was located about 6-mm away from the weld center, corresponding to the shoulder radius of the tool. For each weld the results from tensile-shear tests are also presented. For sound joints without defects, tensile shear fractured load of weld joints was higher approximately 230% than acceptable criteria of tensile shear strength of electrical resistance spot-welded joints for aluminum (MIL-W-6858D).

APA, Harvard, Vancouver, ISO, and other styles

35

D'Urso, Gianluca, Michela Longo, and Claudio Giardini. "Friction Stir Spot Welding (FSSW) of Aluminum Sheets: Experimental and Simulative Analysis." Key Engineering Materials 549 (April 2013): 477–83. http://dx.doi.org/10.4028/www.scientific.net/kem.549.477.

Full text

Abstract:

Friction Stir welding (FSW) is a solid state joining process developed by TWI (The Welding Institute) in 1991. This technology is suitable for joining different materials even considered difficult to be welded using more traditional techniques and it is appropriate to weld materials in different configurations (such as butt, lap, circumferential, T-joint etc). Recently, starting from the FSW approach, a new technology called Friction Stir Spot Welding (FSSW) was developed. In this case, instead of moving along the weld seam, the tool only indents two overlapped parts. In some applications, this technology can be considered as a valid alternative for single point joining processes like resistance spot welding (RSW) and riveting processes. This work deals with an experimental study of the FSSW process for the lap-joining of thin aluminum sheets. In particular, an experimental campaign was performed on AA6060 T6 aluminum sheets having a thickness equal to 2 mm. The FSSW process was applied on couples of overlapped sheets by varying the tool rotational speed, and by keeping fixed the other process parameters, such as axial feed rate, indentation depth, and dwell time. Welding forces distributions were recorded during the process. Preliminary tensile tests and metallurgical analyses were also performed to evaluate the quality of the joints as function of the chosen process parameters. A numerical model of the FSSW process was developed and implemented using the commercial FEM code Deform 3D. The model parameters were set according to the experimental evidence.

APA, Harvard, Vancouver, ISO, and other styles

36

Miyamoto, Kenji, Shigeyuki Nakagawa, Chika Sugi, Hiroshi Sakurai, and Akio Hirose. "Dissimilar Joining of Aluminum Alloy and Steel by Resistance Spot Welding." SAE International Journal of Materials and Manufacturing 2, no. 1 (April 20, 2009): 58–67. http://dx.doi.org/10.4271/2009-01-0034.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Chai, Peng, Kang Yang, Shude Ji, XinXin Ai, Zan Lv, and Qi Song. "Joining Dissimilar Mg/Al Alloys by Solid-State Friction Spot Welding." JOM 71, no. 5 (February 25, 2019): 1760–67. http://dx.doi.org/10.1007/s11837-019-03401-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

AMBROZIAK, A., and M. KORZENIOWSKI. "Using Resistance Spot Welding for Joining Aluminium Elements in Automotive Industry." Archives of Civil and Mechanical Engineering 10, no. 1 (January 2010): 5–13. http://dx.doi.org/10.1016/s1644-9665(12)60126-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Zhang, Shicheng. "Stress Intensity Factors for Spot Welds Joining Sheets of Unequal Thickness." International Journal of Fracture 122, no. 1/2 (July 2003): L119—L124. http://dx.doi.org/10.1023/b:frac.0000005406.06773.95.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Nishibata, Hitomi, Shota Kikuchi, Manabu Fukumoto, and Masato Uchihara. "Single-Side Resistance Spot Welding Process for Joining Pipes and Sheets." International Journal of Automation Technology 7, no. 1 (January 5, 2013): 114–19. http://dx.doi.org/10.20965/ijat.2013.p0114.

Full text

Abstract:

This paper describes a Single-Side resistance Spot Welding (SSSW) process which is expected to be a productive welding technology for the joining of stamped sheet panels to hollow parts for auto bodies. To obtain guidelines for making a sound weld with the SSSW process, the effects of welding parameters and the alignment of specimens on nugget growth are investigated experimentally. In addition, a numerical study is carried out to discuss the mechanism of nugget growth in the SSSW process.

APA, Harvard, Vancouver, ISO, and other styles

41

Miles, Michael, Sung-Tae Hong, Coulter Woodward, and Yong-Ha Jeong. "Spot welding of aluminum and cast iron by friction bit joining." International Journal of Precision Engineering and Manufacturing 14, no. 6 (June 2013): 1003–6. http://dx.doi.org/10.1007/s12541-013-0133-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Janota, M., and H. Neumann. "Share of Spot Welding and Other Joining Methods in Automotive Production." Welding in the World 52, no. 3-4 (March 2008): 12–16. http://dx.doi.org/10.1007/bf03266625.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Xiong, Xuhai, Mingshen Li, Shude Ji, Dejun Yan, and Zhenlei Liu. "An Effective Friction Spot Joining Method for Plastic and Aluminum Alloy." Advanced Engineering Materials 21, no. 8 (June 27, 2019): 1900510. http://dx.doi.org/10.1002/adem.201900510.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Mahmoudi, M., B. Beidokhti, and S. Sahebian. "Strength improvement in friction stir spot joining of polyethylene and aluminum." International Journal of Adhesion and Adhesives 108 (July 2021): 102895. http://dx.doi.org/10.1016/j.ijadhadh.2021.102895.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Aizuddin, Z. A. Z., B. A. Aminudin, P. S. Sanda, and R. M. S. Zetty. "Resistance Spot Welding Process Optimization Using Taguchi Robust Method for Joining Dissimilar Material." Applied Mechanics and Materials 835 (May 2016): 248–53. http://dx.doi.org/10.4028/www.scientific.net/amm.835.248.

Full text

Abstract:

Steel sheet joining were dominantly by resistance spot welding (RSW) method. It is the most implemented in automotive mass production in which the heat is applied to the materials. Joining different material with different properties is a challenge. Thicker material needs more current and time. Meanwhile, the thinner material may burn and weaken if the excessive parameters apply. The purpose of this study is to identify the optimum spot weld parameters for joining dissimilar materials with different thickness that involve high tensile strength steel and low carbon steel in the automotive application. In this study, weld parameters with varying electrode forces, welding currents, and welding times are analyzed by applying a Taguchi robust method for the design of experiment (DOE). The L9 orthogonal array has been chosen due to the particular material specimen and time constraint. In the analysis, the higher value of signal-to-noise (S/N) ratio indicates the good responses of testing parameter when the level changed. Base of the plotted S/N ratio graph for each factor, Taguchi robust method has suggested that A3 (5000V), B3 (25 cycle), and C2 (150N) as the optimum weld parameters. The confirmation test afterward, finally proved that the Taguchi robust method was a liable DOE method and has been successfully optimized the spot weld parameters.

APA, Harvard, Vancouver, ISO, and other styles

46

KURABE, Youhei, Kimitaka YOSHITANI, Yukio MIYASHITA, and Hisashi HORI. "Effects of joining temperature on tensile strength in Al alloy/CFRP friction lap spot joining with insert material." Proceedings of Conference of Hokuriku-Shinetsu Branch 2020.57 (2020): B023. http://dx.doi.org/10.1299/jsmehs.2020.57.b023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Nakata, Shuji, Kozo Fujimoto, and Shoji Tamai. "Investigation on joining process and joining parameter - Study of high-current density resistance spot welding process (2nd. report)." QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 4, no. 3 (1986): 581–86. http://dx.doi.org/10.2207/qjjws.4.581.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Mohammed, Ahmed S., Sabah Khammass Hussain, and Khudhayer J. Jadee. "Joining of Aluminium Alloy (AA6061-T6) to Pre-Threaded Pure Copper by Friction Spot Lap joining (FSpLJ) Process." IOP Conference Series: Materials Science and Engineering 1105, no. 1 (June 1, 2021): 012046. http://dx.doi.org/10.1088/1757-899x/1105/1/012046.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Zinigrad, Michael, and Konstantin Borodianskiy. "Welding, Joining, and Coating of Metallic Materials." Materials 13, no. 11 (June 10, 2020): 2640. http://dx.doi.org/10.3390/ma13112640.

Full text

Abstract:

Welding, joining, and coating of metallic materials are among the most applicable fabrication processes in modern metallurgy. Welding or joining is the manufacture of a metal one-body workpiece from several pieces. Coating is the process of production of metallic substrate with required properties of the surface. A long list of specific techniques is studied during schooling and applied in industry; several include resistant spot, laser or friction welding, micro arc oxidation (MAO), chemical vapor deposition (CVD), and physical vapor deposition (PVD), among others. This Special Issue presents 21 recent developments in the field of welding, joining, and coating of various metallic materials namely, Ti and Mg alloys, different types of steel, intermetallics, and shape memory alloys.

APA, Harvard, Vancouver, ISO, and other styles

50

Archish, R., A. K. Lakshminarayanan, and V. E. Annamalai. "Optimum Welding Conditions for Dissimilar Spot Friction Joining of Aluminium - Interstitial Free Steel Joints." Applied Mechanics and Materials 787 (August 2015): 396–400. http://dx.doi.org/10.4028/www.scientific.net/amm.787.396.

Full text

Abstract:

Design structures made of aluminium alloy and steel are useful to meet the needs of automotive industry such as light weight and higher strength. An effective joining technique to join light weight metals such as aluminium alloys with steel is required. Friction stir spot welding (FSSW) is relatively a new solid state process and it is a derivative of Friction Stir Welding. It creates a spot, lap joint weld without bulk melting. The FSSW parameters such as tool rotational speed, plunge depth, and dwell time plays a major role in determining the strength of the joints and need to be optimized to get quality joints. In this investigation, a central composite rotatable design with three factors and five levels was chosen to minimize the number of experimental conditions. Response surface methodology (RSM) was applied to optimize the FSSW parameters to attain maximum lap shear strength of the spot weld.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Spot joining'

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