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Relevant bibliographies by topics / Lap Welding

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Academic literature on the topic 'Lap Welding'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 April 2022

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Journal articles on the topic "Lap Welding"

1

Cojocaru, Radu, Lia Boțilă, Cristian Ciucă, Horia Florin Dascau, and Victor Verbiţchi. "Friction Stir Lap Welding of Light Alloy Sheets." Advanced Materials Research 814 (September 2013): 187–92. http://dx.doi.org/10.4028/www.scientific.net/amr.814.187.

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Aluminum alloys are widely used in aerospace, automotive, railway and shipbuilding industry, as materials having remarkable properties for applications in these fields. For this reason, in recent years the interest for friction stir lap welding of sheets from these alloys increased.The behaviour of welding materials from the plastic and mechanic viewpoint are different in case of friction stir lap welding compared to friction stir butt welding.The welding tools for friction stir lap welding can have different configurations and sizes compared to butt welding. The used welding parameters must be reconsidered in order to obtain a proper flow of material for obtaining a friction stir lap welded joint.In addition, it is very important how to prepare the sheets surfaces that come into contact and their placement (relative to each other).The paper presents considerations regarding friction stir lap welding, with examples/concrete results obtained in welding of similar and dissimilar light alloys (alloys of aluminum, magnesium and titanium). It also presents data on the characteristics of obtained welded joints, related with particularities of friction stir lap welding.The obtained results showed that light alloys sheets used in various industrial fields can be joined with respect of basis conditions specific for the friction stir lap welding process.

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Aldanondo, Egoitz, Javier Vivas, Pedro Álvarez, and Iñaki Hurtado. "Effect of Tool Geometry and Welding Parameters on Friction Stir Welded Lap Joint Formation with AA2099-T83 and AA2060-T8E30 Aluminium Alloys." Metals 10, no. 7 (2020): 872. http://dx.doi.org/10.3390/met10070872.

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In this paper the effect of tool geometry and welding parameters on friction stir welded lap joints with AA2099-T83 and AA2060-T8E30 aluminium alloys has been investigated through the study of the material flow and weld formation along with the reaction forces during friction stir welding (FSW) for various sets of welding parameters and two FSW tools with different geometrical features. The results showed that welding parameters and tool probe geometry strongly affect the characteristics of the typical defect features (hook and cold lap defects) of the friction stir welded lap joints. From the relationship established between the welding parameters, tool probe geometry and the hook and cold lap defect formation, some guidelines are concluded with the objective of guaranteeing appropriate FSW lap joint properties.

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Wang, Hong Xiao, Chun Sheng Wang, Chun Yuan Shi, and Zhi Yi Huang. "Heat Source Model of Lap Laser Welding of Stainless Steel Vehicle." Applied Mechanics and Materials 121-126 (October 2011): 3347–51. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3347.

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Resistance spot welding (RSW) is being taken place by partial lap laser welding for the poor surface quality and bad airtight due to the pressure of electrodes. The shape of partial lap laser welding is similar to the vase. When the penetration of the joint is in a certain range, there is no welding trace on the outer surface. Laser welding temperature field numerical analysis based on Abaqus finite element analysis software is committed to obtain a suitable range of process parameters to improve production efficiency and automation by determining the joint penetration. To master the laser lap welding of stainless steel weld penetration state, the combination of three-dimensional positive cone + three-dimensional inverted cone + half-ellipsoid heat source model was established simulating stainless steel lap laser weld pool shape and forecasting the range of process parameters .

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Bruni, Carlo, Giovanni Quercetti, and Massimiliano Pieralisi. "Friction Stir Lap Welding of Aluminium Alloys." Key Engineering Materials 611-612 (May 2014): 1421–28. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.1421.

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The friction stir welding of lap sheets can be performed considering different variables in terms of process parameters, tool configuration, welding typology and so on. The proposed investigation deals with the friction stir welding of blanks, with the same thickness, performed under lap configuration with the sheets welded, in one-side and in both sides as well, with different tool geometries and tool rotation-wise. The double side allows to extend the weld through the whole thickness leading to better mechanical welding properties at the blank to blank interface. The weld morphology has been investigated through microstructure observations performed on the transverse area, with respect to the welding velocity, of each joint. The tensile shear strength of the joint in one-side weld is generally lower than that detected in two side weld.

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Sh. Hasan, Aysha, Obed M. Ali, and Adnan M. Alsaffawi. "Effect of Welding Current on Weldments Properties in MIG and TIG Welding." International Journal of Engineering & Technology 7, no. 4.37 (2018): 192. http://dx.doi.org/10.14419/ijet.v7i4.37.24099.

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Welding is an important process commonly used to join the different materials together. There are many methods for welding process;therefore, the specifications of weldments will depend on the type of welding process. In this study, investigation of the effect of electrical current on the weldment mechanical propertieswas conducted. Medium carbon steel & stainless steel were welded using two types of joints (single Lap joint and single v-groove Butt joint). The results showedthat the temperature increased with increasing the electrical current. A significant effect of electrical current on the ultimate tensile strength of the weldments is obtaineddepending on the joint type rather than welding type.Furthermore, there was a noticeable effect for the joining method on the heat generated.The heat generated increases with increasing the electrical current for all weldments (lap & butt) joint in both TIG & MIG welding process. However,the amount of heat generated was for TIG welding process specimens higher than from MIG welding process specimens for Butt and Lap type joints.

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Tashkandi, M. A., J. A. Al-jarrah, and M. Ibrahim. "Spot Welding of 6061 Aluminum Alloy by Friction Stir Spot Welding Process." Engineering, Technology & Applied Science Research 7, no. 3 (2017): 1629–32. http://dx.doi.org/10.48084/etasr.1125.

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This study was focused on the effect of welding parameters on the lap-shear fracture load of the welded joints prepared by friction stir spot welding. Four different weld parameters were analyzed: rotational speed, dwell time, pin length and shoulder size of the welding tool. It was found that the lap-shear fracture load increases with an increase of the welding parameters to a limited value and decreases with further increase. The strong welded joints failed under nugget-pull out fracture.

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HASEGAWA, Tatsuya, Tomohiro MAEDA, Shuichi NAKAHARA, Yuichiro TAKAI, and Takashi NAKAMURA. "Laser Lap Welding of Thermoplastic Plates." Transactions of the Japan Society of Mechanical Engineers Series C 67, no. 661 (2001): 2997–3001. http://dx.doi.org/10.1299/kikaic.67.2997.

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TABATA, Tsuyoshi, Saiji MASAKI, Yoshifumi KOBAYASHI, and Yasukazu MATSUOKA. "Cold lap welding of sheet metals." Transactions of the Japan Society of Mechanical Engineers Series C 56, no. 523 (1990): 817–20. http://dx.doi.org/10.1299/kikaic.56.817.

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Danielewski, Hubert, and Andrzej Skrzypczyk. "Steel Sheets Laser Lap Joint Welding—Process Analysis." Materials 13, no. 10 (2020): 2258. http://dx.doi.org/10.3390/ma13102258.

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This article presents the results of steel-sheet lap-joint-welding using laser beam radiation. The use of a laser beam and keyhole effect for deep material penetration in lap joint welding was presented. Thermodynamic mechanism of laser welding is related to material properties and process parameters. Estimation of welding parameters and joint properties’ analysis was performed through numerical simulation. The article presents a possibility of modeling laser lap-joint welding by using Simufact Welding software based on Marc solver and thermo-mechanical solution. Numerical calculation was performed for surface and conical volumetric heat sources simulating laser absorption and keyhole effect during steel sheet welding. Thermo-mechanical results of fusion zone (FZ), heat-affected zone (HAZ) and phase transformations calculated in numerical simulation were analyzed. The welding parameters for partial sealed joint penetration dedicated for gas piping installations were estimated from the numerical analysis. Low-carbon constructional steel was used for numerical and experimental analyses. A trial joint based on the estimated parameters was prepared by using a CO2 laser. Numerical and experimental results in the form of hardness distributions and weld geometry were compared. Metallographic analysis of the obtained weld was presented, including crystallographic structures and inclusions in the cross section of the joint.

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Li, Gang, Shengyu Xu, Xiaofeng Lu, Xiaolei Zhu, Yupeng Guo, and Jufeng Song. "Effect of welding speed on microstructure and mechanical properties of titanium alloy/stainless steel lap joints during cold metal transfer method." Metallurgical Research & Technology 117, no. 5 (2020): 506. http://dx.doi.org/10.1051/metal/2020052.

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Cold metal transfer (CMT) technique is developed for lap joining of titanium (Ti) alloy to stainless steel (SS) with CuSi3 filler wire. The effect of welding speed on the microstructure and mechanical properties of Ti/SS lap joints is investigated. The results indicate that the wetting angle of the lap joints gradually increases and the weld width decreases with increasing the welding speed. It is found that many coarse phases in the fusion zone are rich in Ti, Fe and Si etc, inferring as Fe–Si–Ti ternary phase and/or Fe2Ti phase at low welding speed. Many fine spherical particles in the fusion zone are considered as iron-rich particles at high welding speed. The transition layer are exhibited at the Ti–Cu interface. With increasing the heat input, the intermetallic layer becomes thicker. A variety of brittle intermetallic compounds (IMCs) are identified in the lap joints. The shear strength of the joints increases with increasing the welding speed. Two fracture modes occur in the lap joints at low welding speed. Thicker reaction layer causes brittle fracture and poor joint strength. The Fe–Ti–Si and Fe2Ti phase within the fusion zone are detrimental to the joint strength. The fracture surface of the joints is dominated by smooth surface and tear pattern at high welding speed. The fracture mode of the joints is merely along the Ti–Cu interface.

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Dissertations / Theses on the topic "Lap Welding"

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Akhter, Rehan. "Laser welding of zinc coated steel." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/8164.

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Zhang, Yuan. "Investigation of Magnetic Pulse Welding on Lap Joint of Similar and Dissimilar Materials." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268135049.

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Doering, Kenneth Thomas Nathaniel. "Fatigue of friction stir welded lap joints with sealants." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Doering_09007dcc80627994.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 9, 2009) Includes bibliographical references (p. 118-127).

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Naidu, Rajesh Soschinske Kurt A. "Friction stir welding thermal effects of a parametric study on butt and lap welds /." Diss., A link to full text of this thesis in SOAR, 2006. http://soar.wichita.edu/dspace/handle/10057/669.

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Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering.<br>"December 2006." Title from PDF title page (viewed on Nov. 4, 2007). Thesis adviser: Kurt A. Soschinske. Includes bibliographic references (leaves 70-72).

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NAKAMURA, Takashi, 達也長谷川, Tatsuya HASEGAWA та ін. "レーザによる熱可塑性プラスチックのラップ接合 (第3報, 数値シミュレーションによる接合条件の検討)". 日本機械学会, 2002. http://hdl.handle.net/2237/9093.

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Hartman, Trent J. "Friction Stir Spot Welding of Ultra-High Strength Steel." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3302.

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Friction stir spot welding (FSSW) is quickly becoming a method of interest for welding of high strength steel (HSS) and ultra high strength steel (UHSS). FSSW has been shown to produce high quality welds in these materials, without the drawbacks associated with fusion welding. Tool grade for polycrystalline cubic boron nitride (PCBN) tools has a significant impact on wear resistance, weld quality, and tool failure in FSSW of DP 980 steel sheet. More specifically, for a nominal composition of 90% CBN, the grain size has a significant impact on the wear resistance of the tool. A-type tools performed the best, of the three grades that were tested in this work, because the grain size of this grade was the finest, measuring from 3-6 microns. The effect of fine grain size was less adhesion of DP 980 on the tool surface over time, less abrasive wear, and better lap shear fracture loads of the welds that were produced, compared to the other grades. This is explained by less exposure of the binder phase to wear by both adhesion and abrasion during welding of DP 980. A-type tools were the most consistent in both the number of welds per tool, and the number of welds that reached acceptable lap shear fracture loads. B-type tools, with a bimodal grain size distribution (grain size of 4 – 40 microns) did a little bit better than C-type tools (grain size of 12-15 microns) in terms of wear, but neither of them were able to achieve consistent acceptable lap shear fracture load values after the first 200 welds. In fact only one out of five C-type tools was able to produce acceptable lap shear fracture loads after the first 100 welds.

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Li, Peigang. "Cold lap formation in Gas Metal Arc Welding of steel : An experimental study of micro-lack of fusion defects." Doctoral thesis, Högskolan Väst, Avd för maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5596.

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Cold laps are defined as micro-lack of fusion defects at the weld toe more or less parallel to the surface of the parent plate. These defects are known to negatively influence the fatigue properties of weldments. Previous studies suggest that cold lap formation can not be avoided completely in Gas Metal Arc Welding (GMAW). Therefore, a better understanding of formation mechanisms is imperative to be able to minimize the number and size of these defects. The main objective of this work has been to provide a more comprehensive understanding of cold laps, including categorising, characterisation and defining the most significant factors for formation. GMAW was used to produce welds that were investigated by metallographic methods using light optical microscopy, scanning electron microscopy and energy dispersive spectrometry. A novel classification of cold laps was introduced and three types of cold laps were identified: spatter cold laps, overlap cold laps and spatter-overlap cold laps. It was shown that cold laps are partially or fully filled by oxides. The most common oxides are manganese silicon oxides which were concluded to be formed primarily by oxidation of droplets. The presence of oxides was found to significantly increase the tendency to form spatter cold laps as well as overlap cold laps. Particularly for overlap cold laps, it was found that the depth (in transverse direction of weld) is reduced when welding in a non-oxidising environment. Welding on blasted surfaces increased the cold lap formation by entrapment of gas. The droplet and base metal temperatures were also found to be significant factors in cold lap formation. For overlap cold laps the occurrence frequency decreased with increased preheating temperature of the base metal. Mechanisms of overflowing resulting in overlap cold laps were discussed based on an extensive literature review. Several phenomena are believed to contribute to overflow including Rayleigh instability, the balance of forces, transfer of lateral momentum by droplets and an outward Marangoni fluid flow of the weld pool. The present studies suggest that cold lap formation can be suppressed by ensuring that the welding process (arc) is as stable as possible and by welding on a preheated work piece in a non-oxidising environment.

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Champagne, Matthew. "Investigation of 2195 and 2219 Post Weld Heat Treatments for Additive Friction Stir Lap Welds." ScholarWorks@UNO, 2017. https://scholarworks.uno.edu/td/2402.

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To evaluate potential uses for friction stir welding in additive manufacturing, two separate parts were fabricated, one of 2195-T84 and the other 2219-T87, utilizing fixed pin techniques and additive lap welds. The parts were cut into samples, artificially aged and subjected to Rockwell hardness (HRB), Vickers hardness, micrographic photography, and metallographic imaging on both pre- and post- heat treatment. Additionally, tensile testing was performed on the heat-treated samples. A comparisons of test results showed a minimal increase in the yield strength of the 2195-T84 samples compared to as-welded tensile results obtained from a previous project. The ultimate tensile strength was reduced by approximately 16%. Further testing will be required to determine the nature of this reduction. No previous results were available for the as-welded 2219-T87, but UTS of the artificially aged samples was approximately 91% that of the parent material.

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Martins, Meco Sonia Andreia. "Joining of steel to aluminium alloys for advanced structural applications." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/10288.

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When joining steel to aluminium there is a reaction between iron and aluminium which results in the formation of brittle intermetallic compounds (IMC). These compounds are usually the reason for the poor mechanical strength of the dissimilar metallic joints. The research on dissimilar metal joining is vast but is mainly focused on the automotive industry and therefore, the material in use is very thin, usually less than 1 mm. For materials with thicker sections the present solution is a transition joint made by explosion welding which permits joining of steel to aluminium and avoids the formation of IMCs. However, this solution brings additional costs and extra processing time to join the materials. The main goals of this project are to understand the mechanism of formation of the IMCs, control the formation of the IMCs, and understand their effects on the mechanical properties of the dissimilar Fe-Al joints during laser welding. Laser welding permits accurate and precise control of the welding thermal cycle and thereby the underpinning mechanism of IMC formation can be easily understood along with the factors which control the strength of the joints. The further goal of this project is to find an appropriate interlayer to restrict the Fe-Al reaction. The first stage of the work was focused on the formation and growth of the Fe-Al IMCs during laser welding. The understanding of how the processing conditions affect the IMC growth provides an opportunity to act and avoid its formation and thereby, to optimize the strength of the dissimilar metal joints. The results showed that even with a negligible amount of energy it was not possible to prevent the IMC formation which was composed of both Fe2Al5 and FeAl3 phases. The IMC growth increases exponentially with the applied specific point energy. However, for higher power densities the growth is more accentuated. The strength of the Fe-Al lap-joints was found to be not only dependent on the IMC layer thickness but also on the bonding area. In order to obtain sound joints it is necessary to achieve a balance between these two factors. The thermal model developed for the laser welding process in this joint configuration showed that for the same level of energy it is more efficient to use higher power densities than longer interaction iv times. Even though a thicker IMC layer is formed under this condition due to higher temperature there is also more melting of aluminium which creates a larger bonding area between the steel and the aluminium. The joint strength is thus improved ... [cont.].

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Castro, Carlos Eduardo Gomes de. "Caracterização mecânica e análise de falha de juntas termoplásticas soldadas e termorrígidas coladas de laminados compósitos de grau aeronáutico." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18150/tde-06072015-064313/.

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Este trabalho objetivou a caracterização mecânica e a análise de falha de dois tipos de juntas compósitas através de ensaios mecânicos, em que uma das juntas era composta por dois laminados de fibras de carbono recoberto em ambas as faces por tecido de fibra de vidro reforçando uma matriz termoplástica (PPS-C) unidos via soldagem por resistência elétrica, e a outra confeccionada com dois laminados de fibras de carbono reforçando uma matriz de resina epóxi (EPX-C) unidos via colagem por filme de resina epoxídica. Os dois tipos de juntas foram submetidos a impacto único transversal de 10 J, condicionamento higrotérmico, além de carregamento em fadiga compressiva no plano nas mais diversas combinações destes processos degradativos de suas propriedades mecânicas. Observou-se, que a junta termorrígida colada de EPX-C apresentou a maior resistência mecânica em flexão em quatro pontos (F4P) na condição original (como-manufaturada), assim como os maiores valores de resistência residual para as várias condições de degradação mecânica e higrotérmica a que foi submetida. Por sua vez, a junta termoplástica soldada de PPS-C exibiu, em termos percentuais, menores reduções dos valores de resistência à flexão sob as condições avaliadas, relativamente às perdas apresentadas pela junta EPX-C em idênticas circunstâncias. A análise macroscópica da superfície de fratura de ambas as juntas indicou que o modo de falha predominante da junta termorrígida foi interfacial enquanto que, para a junta PPS-C, o modo de falha predominante foi o intralaminar. Análises fratográficas através da microscopia eletrônica de varredura (MEV) evidenciaram para a junta termorrígida EPX-C, uma alta adesão entre fibra/matriz, porém uma relativamente fraca interação entre os aderentes (laminado) e o filme adesivo de colagem, enquanto que, para a junta termoplástica PPS-C, reduzidas interações fibra/matriz forem inferidas na camada externa de PPS-V do aderente assim como entre a malha metálica resistiva e os filmes puros de PPS que a revestiam. Em ensaios de resistência ao cisalhamento interlaminar (ILSS), os espécimes retirados da junta EPX-C na condição virgem evidenciaram uma colagem uniforme/homogênea, enquanto que, para a junta PPS-C, os espécimes de ensaio usinados a partir da junta virgem indicaram a ocorrência de efeitos de degradação térmica altamente localizada nas bordas soldadas.<br>This study aimed to mechanical characterization and failure analysis of two kinds of composite single-lap joints by mechanical tests, in which a single-lap joint was made of two adherents of carbon fibers coated on both sides with glass fiber fabric reinforcing a thermoplastic matrix (PPS-C) welded via resistance welding, and the another type made of two adherents of carbon fibers reinforcing an epoxy matrix (EPX-C) bonded by epoxy adhesive film. The two types of single-lap joints were subjected to single transverse impact of 10 J, hygrothermal conditioning, and compressive fatigue loading in the plane in various combinations of these degradative processes of mechanical properties. It was observed that the thermosetting bonded joint EPX-C showed the highest strength in four point-flexure test in the original condition (as-manufactured), as well as greater residual strength values for the various conditions of mechanical and hygrothermal degradation which was subjected. In turn, the welded thermoplastic joint PPS-C exhibited, in percentage terms, smaller reductions in flexural strength values under the tested conditions, in respect of losses showed by EPX-C in similar circumstances. Macroscopic analysis of the fracture surfaces from both joints indicated that the predominant failure mode was interfacial to thermosetting while for PPS-C joint, the predominant failure mode was intralaminar. Analysis of fracture surfaces by scanning electron microscopy (SEM) showed, for thermosetting joints EPX-C, a high adhesion between fiber/matrix, but a relatively weak interaction between adherents and the bonding adhesive film, whereas for thermoplastic joint PPS-C, reduced interactions fiber/matrix are inferred in the outer layers of PPS-V and between metal mesh and the pure PPS films that coated it. In the interlaminar shear strength tests (ILSS), the specimens removed from the EPX-C joint in the pristine condition showed a uniform/homogeneous bonding along the joint area, while for PPS-C joint, coupons extracted from pristine condition joint indicated the occurrence of degradation caused by thermal effects localized in the welded edges.

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Books on the topic "Lap Welding"

1

Las soldaduras. Susaeta Ediciones, 1994.

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Hardy, R. Welding of plastic films using infrared lamp and laser technologies. TWI, 1999.

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Snyder, Douglas C. Welding Lab Manual. Kendall/Hunt Publishing Company, 1994.

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Bowditch, William A. Modern Welding (Lab Manual). Goodheart-Wilcox Publisher, 2003.

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Bowditch, Kevin E., and William A. Bowditch. Modern Welding (Lab Manual). Goodheart-Wilcox Publisher, 2000.

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Hoffman, David J., Kevin R. Dahle, and David J. Fisher. Student Lab Manual for Welding. Pearson, 2016.

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Helzer, Scott. Lab Manual for Fundamentals of Welding. Pearson Education, Limited, 2015.

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Welding Principles & Applications Study Guide/ Lab Manual. Delmar Publishers, 2007.

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Rowe, Peggy. Welding Series: Metal Arts Lab Manual. Delmar Publishers, 2003.

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Welding: Principles and Applications (Study Guide/Lab Manual). 4th ed. Delmar Publishers, 1997.

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Book chapters on the topic "Lap Welding"

1

Aldanondo, Egoitz, Ekaitz Arruti, Jorge Garagorri, and Alberto Echeverria. "Dissimilar Aluminum-Steel FSW Lap Joints." In Friction Stir Welding and Processing VIII. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093343.ch15.

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Aldanondo, Egoitz, Ekaitz Arruti, Jorge Garagorri, and Alberto Echeverria. "Dissimilar Aluminum-Steel FSW Lap Joints." In Friction Stir Welding and Processing VIII. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48173-9_15.

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ARAI, Takeji. "Simulation of Thin Metal Laser Lap Welding." In Materials with Complex Behaviour II. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22700-4_44.

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Aldanondo, Egoitz, Ekaitz Arruti, Pedro Alvarez, and Alberto Echeverria. "Mechanical and Microstructural Properties of FSW Lap Joints." In Friction Stir Welding and Processing VII. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48108-1_20.

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Aldanondo, Egoitz, Ekaitz Arruti, Pedro Alvarez, and Alberto Echeverria. "Mechanical and Microstructural Properties of FSW Lap Joints." In Friction Stir Welding and Processing VII. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118658345.ch20.

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Upadhyay, Piyush, Xiao Li, and Tim Roosendaal. "High-Speed Friction Stir Lap Welding of Al Alloys." In Friction Stir Welding and Processing X. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05752-7_7.

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Upadhyay, Piyush, Yuri Hovanski, Leonard S. Fifield, and Kevin L. Simmons. "Friction Stir Lap Welding of Aluminum - Polymer Using Scribe Technology." In Friction Stir Welding and Processing VIII. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093343.ch17.

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Upadhyay, Piyush, Yuri Hovanski, Leonard S. Fifield, and Kevin L. Simmons. "Friction Stir Lap Welding of Aluminum — Polymer Using Scribe Technology." In Friction Stir Welding and Processing VIII. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48173-9_17.

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Curtis, Todd, Christian Widener, Michael West, et al. "Friction Stir Scribe Welding of Dissimilar Aluminum to Steel Lap Joints." In Friction Stir Welding and Processing VIII. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093343.ch18.

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Curtis, Todd, Christian Widener, Michael West, et al. "Friction Stir Scribe Welding of Dissimilar Aluminum to Steel Lap Joints." In Friction Stir Welding and Processing VIII. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48173-9_18.

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Conference papers on the topic "Lap Welding"

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Forsman, T., J. Powell, and C. Magnusson. "Nd:YAG laser lap welding of coated aluminium alloys." In ICALEO® ‘97: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1997. http://dx.doi.org/10.2351/1.5059712.

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Able, Nicholas, and Frank Pfefferkorn. "Laser-Assisted Friction Stir Lap Welding of Aluminum." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72829.

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Abstract:

The objective of this research is to determine the effects of laser preheating on friction stir lap welding. Laser preheating of the top surface of the material during friction stir lap welding is used to reduce the welding forces and torque, thereby reducing the stiffness requirements on the clamping and FSW tool. Preheating also has the potential to enable higher welding speeds and reduced tool wear particularly when applied to welding of higher melting temperature alloys. A transient three-dimensional finite element heat transfer model of the workpieces was developed to predict the influence of preheating on the temperature distribution and heat flux within the workpieces. The model accounts for conduction in the workpieces, contact resistance between them, laser absorption, frictional heat generation under the FSW tool shoulder, and losses to the surroundings. Predicted temperatures at discrete locations were compared with thermocouple measurements and found to be in good agreement. The model showed that the energy deposited by the laser in the top plate does not penetrate into the bottom plate ahead of the tool due to the contact resistance between the plates. Hence, the thermal contact resistance, inherent to lap welds, controls the effectiveness of preheating. The effect of preheating on FSW of aluminum was investigated by varying the laser power and workpiece material while maintaining constant tool geometry and material. The results of the parametric study are presented and show that while forces and torques are reduced by preheating, not as much as in butt welding because of the contact resistance produced by the nature of the weld. It was also found that the total power consumed in the process, defined as the sum of tool power and absorbed laser power, can decrease with preheating.

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Dong, Peng, and Rongshi Xiao. "Laser welding of lap joint between copper and brass." In ICALEO® 2009: 28th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2009. http://dx.doi.org/10.2351/1.5061553.

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Xie, Jian, and Paul Denney. "Laser Lap Welding of Galvanized Steel with No Gap." In International Body Engineering Conference & Exposition. SAE International, 1999. http://dx.doi.org/10.4271/1999-01-3145.

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Chunlan Gu, Yuan Li, Qinglin Wang, and De Xu. "Robust features extraction for lap welding seam tracking system." In 2009 IEEE Youth Conference on Information, Computing and Telecommunication (YC-ICT). IEEE, 2009. http://dx.doi.org/10.1109/ycict.2009.5382359.

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Zhang, Xinge, Liqun Li, Zhenglong Lei, and Yanbin Chen. "Study on welding characteristics of combining laser welding and resistance seam welding joined Ti-6Al-4V lap joints." In PICALO 2008: 3rd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. Laser Institute of America, 2008. http://dx.doi.org/10.2351/1.5057035.

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Geiger, M., M. Merklein, A. Otto, and A. Blankl. "Dual beam Nd:YAG laser welding: influence of lubricants to lap joint welding of steel sheets." In XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers. SPIE, 2006. http://dx.doi.org/10.1117/12.738673.

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Du, Jihua, Joe Longobardi, W. P. Latham, and Aravinda Kar. "Laser marginal lap micro-welding for ultra thin sheet metal." In ICALEO® 2000: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 2000. http://dx.doi.org/10.2351/1.5059428.

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Schimon, Ron W., and Jyoti Mazumder. "Monitoring of interface width during laser lap welding through visualization." In ICALEO® ‘93: Proceedings of the Laser Materials Processing Conference. Laser Institute of America, 1993. http://dx.doi.org/10.2351/1.5058596.

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Kumar, P., Rohit, and Sooraj. "Role of heat equation in lap joint for welding process." In RECENT ADVANCES IN FUNDAMENTAL AND APPLIED SCIENCES: RAFAS2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4990347.

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