Journal of Advanced Joining Processes最新文献

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Effect of rotational speed and penetration depth on Al-Mg-Si welded T-joints through underwater and conventional friction stir welding 旋转速度和熔深对水下和传统搅拌摩擦焊铝镁硅合金焊接 T 型接头的影响
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-16 DOI: 10.1016/j.jajp.2024.100207
Ibrahim Sabry , Virendra Pratap Singh , Mohammad Alkhedher , Noah E. El-Zathry , Abdel-Hamid I. Mourad , Majid Naseri
{"title":"Effect of rotational speed and penetration depth on Al-Mg-Si welded T-joints through underwater and conventional friction stir welding","authors":"Ibrahim Sabry ,&nbsp;Virendra Pratap Singh ,&nbsp;Mohammad Alkhedher ,&nbsp;Noah E. El-Zathry ,&nbsp;Abdel-Hamid I. Mourad ,&nbsp;Majid Naseri","doi":"10.1016/j.jajp.2024.100207","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100207","url":null,"abstract":"<div><p>The present work deals with the effect of penetration depth on welding T-joints through conventional friction stir welding (FSW) as well as underwater friction stir welding (UFSW). Various set of parameters have been used such as tool rotational speeds of 1000, 1400, and 1800 rpm, and depths of penetration, such as 6, 7, and 8 mm. In UFSW, lower heat generation prevents the development of complex intermetallic compounds and defects in welding. Additionally, in the weld region, a rapid cooling rate in UFSW generates fine microstructural particles. Mechanical and microstructural characteristics has been compared in both UFSW and FSW. There was a substantial grain size effect on mechanical properties. The stir zone shows comparatively finer grains with average grain size of 49.76 µm at 1800 rpm and 7 mm depth of penetration. It was seen that the tensile strength of UFSW was 189.9 MPa and the nugget zone hardness was 70 VHN, compared to the FSW that has 175.2 MPa and 62 VHN, respectively, obtained at a rotation speed of 1800 rpm and a travel speed of 60 mm/min. The joints tested at various penetration depths show a significant number of uniform and equiaxed dimples. The presence of ductile rupture and the formation of dimples suggest that the joints were effectively bonded and tested at different strain rates.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100207"},"PeriodicalIF":4.1,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000244/pdfft?md5=43c022b5749a25d4b1be9a300de7ad12&pid=1-s2.0-S2666330924000244-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139936221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental study of the effects of pin geometry, advancing speed and D/d ratio on the mechanical and microstructural properties of 6061 aluminum alloy under the friction stir processing 搅拌摩擦加工中销轴几何形状、推进速度和 D/d 比对 6061 铝合金机械和微观结构特性影响的实验研究
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-15 DOI: 10.1016/j.jajp.2024.100205
Ali Alavi Nia, Reza Amirifar
{"title":"Experimental study of the effects of pin geometry, advancing speed and D/d ratio on the mechanical and microstructural properties of 6061 aluminum alloy under the friction stir processing","authors":"Ali Alavi Nia,&nbsp;Reza Amirifar","doi":"10.1016/j.jajp.2024.100205","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100205","url":null,"abstract":"<div><p>The aim of this research is to investigate the effect of different pin geometries, the ratio of shoulder diameter to pin diameter, and advancing speed on the mechanical and microstructural properties of the specimens fabricated from 6061 aluminum sheet by friction stir processing. Cylindrical, frustum and prisms with triangular section (in three sizes), square and hexagonal cross-sections pins were prepared. The diameter of the shoulder was considered 18 and the diameter of the peripheral circle of all the pins was considered 6 mm. Advancing speeds of 14, 20, and 28 mm/min and rotational speed of 1000 rpm were considered. The smallest grain size was obtained using a pin with square cross-section. As the advancing speed increased, the average grain size decreased and its lowest value was observed at the advancing speed of 28 mm/min. In addition, the best mechanical properties were observed in the specimens fabricated by square cross-section pin and frustum pin. As the advancing speed increased, the ultimate strength of all specimens and the yield stress of most specimens increased. The highest hardness was observed in the specimens fabricated by square cross-section pin and the lowest hardness was observed using cylindrical pin. Also, in specimens fabricated by triangular cross-section pins, by decreasing the ratio of the shoulder diameter to the pin diameter, the ultimate strength and hardness increased and the elongation decreased.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100205"},"PeriodicalIF":4.1,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000220/pdfft?md5=aa8df2ce1b5f73107e29bcc0d157164f&pid=1-s2.0-S2666330924000220-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139749541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of surface condition of copper sheets on ultrasonic metal welding 铜板表面状况对超声波金属焊接的影响
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-09 DOI: 10.1016/j.jajp.2024.100204
E. Helfers, F.W. Müller, A. Schiebahn, U. Reisgen
{"title":"Influence of surface condition of copper sheets on ultrasonic metal welding","authors":"E. Helfers,&nbsp;F.W. Müller,&nbsp;A. Schiebahn,&nbsp;U. Reisgen","doi":"10.1016/j.jajp.2024.100204","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100204","url":null,"abstract":"<div><p>Ultrasonic metal welding (USMW) is an industrially widespread joining process. Low heat input and large bonding area qualify USMW for demanding applications such as electrotechnical components. Despite all efforts process and quality fluctuations occur in industrial use. Until now, there is no non-destructive testing method, which makes extensive monitoring of process input variables (work piece characteristics) necessary. USMW is particularly surface-sensitive, but to date no generally valid surface parameters are known for characterizing the weldability of parts and components. Component cleaning before the process is common, but to achieve consistent quality, the cleaning process must be adapted to the condition of the uncleaned component and to the desired surface. In industrial applications, cleaning has so far often been carried out using costly and comparatively environmentally harmful processes based on mechanical and chemical principles. Within this study we investigate prior treatment of copper workpieces for USMW by means of laser beam and compare the results with chemically and mechanically processed samples. Laser treatment of the typically bright copper surfaces (low radiation absorption in the infrared range), remaining organic residues and the new formation of oxide layers pose significant challenges developing a robust process chain. Different laser treatment strategies are compared and evaluated for different initial surface conditions. The influence on the resulting cleaned surface properties, the resulting USMW process and the joint quality thus achieved is experimentally evaluated. An analytical approach to assessing the weldability based on surface properties and surface treatment is derived. The correlation of surface properties of the materials used, the welding process and welding results is possible. The lowest surface roughness and removal of rolling grooves results in the most efficient welding process. The use of laser treatment leads to the desired alignment of different input conditions, which is also represented in the robustness of the welding result. Without adjustment of the welding parameters, the laser treatment used so far results in a reduction of the joint strength.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100204"},"PeriodicalIF":4.1,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000219/pdfft?md5=4687c369356bb4a799e1926065229d7b&pid=1-s2.0-S2666330924000219-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139733435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recurrent Autoencoder for Weld Discontinuity Prediction 用于焊接不连续预测的循环自动编码器
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-08 DOI: 10.1016/j.jajp.2024.100203
Dominik Walther , Christina Junger , Leander Schmidt , Klaus Schricker , Gunther Notni , Jean Pierre Bergmann , Patrick Mäder
{"title":"Recurrent Autoencoder for Weld Discontinuity Prediction","authors":"Dominik Walther ,&nbsp;Christina Junger ,&nbsp;Leander Schmidt ,&nbsp;Klaus Schricker ,&nbsp;Gunther Notni ,&nbsp;Jean Pierre Bergmann ,&nbsp;Patrick Mäder","doi":"10.1016/j.jajp.2024.100203","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100203","url":null,"abstract":"<div><p>Laser beam butt welding is often the technique of choice for a wide range of industrial tasks. To achieve high quality welds, manufacturers often rely on heavy and expensive clamping systems to limit the sheet movement during the welding process, which can affect quality. Jiggless welding offers a cost-effective and highly flexible alternative to common clamping systems. In laser butt welding, the process-induced joint gap has to be monitored in order to counteract the effect by means of an active position control of the sheet metal. Various studies have shown that sheet metal displacement can be detected using inductive probes, allowing the prediction of weld quality by ML-based data analysis. The probes are dependent on the sheet metal geometry and are limited in their applicability to complex geometric structures. Camera systems such as long-wave infrared (LWIR) cameras can instead be mounted directly behind the laser to overcome a geometry dependent limitation of the jiggles system. In this study we will propose a deep learning approach that utilizes LWIR camera recordings to predict the remaining welding process to enable an early detection of weld interruptions. Our approach reaches 93.33% accuracy for time-wise prediction of the point of failure during the weld.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100203"},"PeriodicalIF":4.1,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000207/pdfft?md5=f050d9f464ba6277ada965afffed7c4f&pid=1-s2.0-S2666330924000207-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139743909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiple analyses of factors influencing fatigue life of linear friction welded low carbon steel 线性摩擦焊接低碳钢疲劳寿命影响因素的多重分析
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-08 DOI: 10.1016/j.jajp.2024.100201
Huilin Miao , Takayuki Yamashita , Seiichiro Tsutsumi , Yoshiaki Morisada , Hidetoshi Fujii
{"title":"Multiple analyses of factors influencing fatigue life of linear friction welded low carbon steel","authors":"Huilin Miao ,&nbsp;Takayuki Yamashita ,&nbsp;Seiichiro Tsutsumi ,&nbsp;Yoshiaki Morisada ,&nbsp;Hidetoshi Fujii","doi":"10.1016/j.jajp.2024.100201","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100201","url":null,"abstract":"<div><p>Fatigue is an important property from the standpoint of structural reliability. It is very complex because it is affected by several factors. Many studies focus on a specific factor affecting fatigue life; few studies consider multiple factors. This study investigated the factors influencing the fatigue life of linear friction welded (LFWed) low carbon steel SM490A. The LFWed joints were fabricated by varying the applied pressure after oscillation. Joints with higher post oscillation pressure had a longer fatigue life than those with lower applied pressure. The factors affecting fatigue were primarily residual stress, hardness distribution, microstructure, crack propagation path, and local stress concentration. The results showed that for joints with a longer fatigue life, a reduced local stress concentration had a positive effect, whereas the other factors had a negative effect. Thus, it can be concluded that the most effective way to improve the fatigue life of LFWed joints is to reduce the local stress concentration by controlling the weld toe shape. The linear friction welding (LFW) method of changing the weld toe shape by increasing the applied pressure after oscillation can produce excellent joints.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100201"},"PeriodicalIF":4.1,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000189/pdfft?md5=7a2b3c793c8e4385b953b0c827bfd8d3&pid=1-s2.0-S2666330924000189-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139719560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tensile and fatigue properties of friction stir AZ31B-H24 magnesium alloy welded joints under the influences of pin geometry and tool rotation rate 搅拌摩擦 AZ31B-H24 镁合金焊接接头在销钉几何形状和工具旋转速度影响下的拉伸和疲劳性能
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-07 DOI: 10.1016/j.jajp.2024.100202
M. Prihajatno , M.N. Ilman , R.A. Sriwijaya , M.R. Muslih , R. Apriansyah
{"title":"Tensile and fatigue properties of friction stir AZ31B-H24 magnesium alloy welded joints under the influences of pin geometry and tool rotation rate","authors":"M. Prihajatno ,&nbsp;M.N. Ilman ,&nbsp;R.A. Sriwijaya ,&nbsp;M.R. Muslih ,&nbsp;R. Apriansyah","doi":"10.1016/j.jajp.2024.100202","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100202","url":null,"abstract":"<div><p>Friction stir welding (FSW) is an innovative joining technology suitable for manufacture of magnesium welded lightweight structures. This paper presents tensile and fatigue crack growth rate (FCGR) behaviors of friction stir AZ31B-H24 magnesium alloy welded joints produced using two different pins, namely cylindrical and square pins at varying tool rotation rates of 910 rpm, 1500 rpm and 2280 rpm. Experiments conducted in this study included microstructural observations, Vickers microhardness measurements, tensile tests, residual stress measurements and FCGR tests. The results showed that increasing tool rotation rate increased ultimate tensile strength (UTS) of the welded joints and the highest values of UTS were achieved at 2280 rpm giving 229.0 MPa for the cylindrical pin and 200.3 MPa for the square pin. In the middle tension M(T) fatigue specimens, FCGR of FSW joint fabricated using the square pin at 2280 rpm was lower in comparison to the weld produced by the cylindrical pin. Subsequently, in single edge crack tension (SECT) specimens, the higher FCGRs were observed as the crack propagated across heat affected zone (HAZ) followed by the crack growth retardation in the weld nugget zone (WNZ). These fatigue crack growth rate behaviors were likely dictated by the weld microstructure and residual stresses.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100202"},"PeriodicalIF":4.1,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000190/pdfft?md5=60e7d23289c5c6aff483bb26d044e5df&pid=1-s2.0-S2666330924000190-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139719559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrosion failures of flanged gasketed joints: A review 法兰垫片连接的腐蚀故障:综述
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-05 DOI: 10.1016/j.jajp.2024.100200
Soroosh Hakimian, Abdel-Hakim Bouzid, Lucas A. Hof
{"title":"Corrosion failures of flanged gasketed joints: A review","authors":"Soroosh Hakimian,&nbsp;Abdel-Hakim Bouzid,&nbsp;Lucas A. Hof","doi":"10.1016/j.jajp.2024.100200","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100200","url":null,"abstract":"<div><p>Corrosion-induced leakage in flanged gasketed joints is a critical issue in various industries, with implications for safety, environmental compliance, and economic sustainability. This review paper examines the mechanisms and factors contributing to corrosion-related failures in these joints, clarifying the diverse range of materials, operating conditions, and gasket types that influence their susceptibility to degradation. The paper investigates the key corrosion processes, such as pitting, crevice, and galvanic corrosion, that can initiate and propagate in the joint's critical areas. It explores the role of environmental factors, including microorganisms, temperature, flow, and chlorination, in accelerating the corrosion process. Additionally, the influence of gasket materials and design on corrosion susceptibility is investigated, highlighting the importance of selecting appropriate materials and sealing technologies. Furthermore, it reviews various corrosion monitoring techniques that can help identify corrosion early, ensuring the integrity and reliability of flanged gasketed joints.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100200"},"PeriodicalIF":4.1,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000177/pdfft?md5=83842cfb04621f5c2e254b9d2bb80988&pid=1-s2.0-S2666330924000177-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139710159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of internal welding penetration based on IR thermal image supported by machine vision and ANN-model during automatic robot welding process 在机器人自动焊接过程中,基于机器视觉和 ANN 模型支持下的红外热图像预测内部焊接熔深
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-02-01 DOI: 10.1016/j.jajp.2024.100199
Yunfeng Wang , Wonjoo Lee , Seungbeom Jang , Van Doi Truong , Yuhyeong Jeong , Chanhee Won , Jangwook Lee , Jonghun Yoon
{"title":"Prediction of internal welding penetration based on IR thermal image supported by machine vision and ANN-model during automatic robot welding process","authors":"Yunfeng Wang ,&nbsp;Wonjoo Lee ,&nbsp;Seungbeom Jang ,&nbsp;Van Doi Truong ,&nbsp;Yuhyeong Jeong ,&nbsp;Chanhee Won ,&nbsp;Jangwook Lee ,&nbsp;Jonghun Yoon","doi":"10.1016/j.jajp.2024.100199","DOIUrl":"https://doi.org/10.1016/j.jajp.2024.100199","url":null,"abstract":"<div><p>Welding quality is a critical criterion for evaluating welding operations. Traditional evaluation methods suffer from drawbacks such as lack of objectivity, untimeliness, and high costs. Therefore, real-time monitoring and assessment of the weld pool have become the mainstream trend in welding technology. This study introduces a novel method for defining weld pool width boundaries. It utilizes an infrared (IR) camera to capture the weld pool temperature clusters and employs the Sobel operator for convolution to generate the gradient map of the weld pool temperature clusters. Through enhanced processing in the gradient map, the width boundaries of the weld pool are more effectively detected compared to previous methods. Previous studies defined weld pool width boundaries by identifying characteristic points with the most distinct temperature fluctuations, caused by the different radiative properties of the same material in different states. However, practical tests revealed susceptibility to interference from reflected arc light. The proposed method mitigates the impact of reflected arc light and is applicable to complex multilayer welding scenarios. To address the lag in quality monitoring, reduce welding costs, and achieve real-time monitoring of the weld pool process, we employed machine vision and an artificial neural network (ANN) model. This led to the development of a weld penetration assessment system based on infrared thermal images. The system successfully predicted the penetration depth for 4 mm carbon steel with an accuracy of 86.6 %. This validates the feasibility of estimating and predicting weld performance using the surface temperature characteristics of the weld pool. The newly proposed weld pool boundary definition method holds promise for real-time monitoring in more complex multilayer pipe welding scenarios. It lays the groundwork for predicting and fusing the weld depth in intricate multi-pass pipe welding.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100199"},"PeriodicalIF":4.1,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000165/pdfft?md5=a82fa9e12eadfb4154a6a5b593d56fbf&pid=1-s2.0-S2666330924000165-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139719561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selected properties of aluminum ultrasonic wire bonded joints with nickel-plated steel substrate for 18650 cylindrical cells 用于 18650 圆柱形电池的镀镍钢基板铝超声波丝键合接头的选定特性
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-01-28 DOI: 10.1016/j.jajp.2024.100197
K Bieliszczuk , J Zręda , T Chmielewski
{"title":"Selected properties of aluminum ultrasonic wire bonded joints with nickel-plated steel substrate for 18650 cylindrical cells","authors":"K Bieliszczuk ,&nbsp;J Zręda ,&nbsp;T Chmielewski","doi":"10.1016/j.jajp.2024.100197","DOIUrl":"10.1016/j.jajp.2024.100197","url":null,"abstract":"<div><p>Ultrasonic wire bonding is a process of connecting two or more surfaces using a metal wire. In battery manufacturing heavy wire bonding is used to connect battery cells with each other or more commonly with printed circuit board or metal (aluminum, plated or bare copper) busbar by means of metal (aluminum, copper) wire with diameters ranging 100–500 µm. Single sided battery cell bonding means that connections are made from one side on both positive (cap) and negative (crimp) battery terminals. The main advantages of this method are easy process automation, low production time, easier recyclability, self-fusing properties of the wire and high process flexibility allowing for more space efficient battery holder design and different material thermal expansions (in comparison with direct busbar to cell joining using resistance or laser welding). This study is focused on analysis of selected properties of 400 µm aluminum wire ultrasonic wedge heavy wire bonding on 18,650 Lithium-Ion cylindrical battery cells. Bonding process was conducted using a RBK03 bond head equipped on a Hesse Bondjet BJ985 CNC wire bonder. As part of the work, the transversal and the longitudinal cross-section profile of the weld, the microstructure of the weld and the heat-affected zones of the dissimilar joint were described using electron and optical microscopy, the microhardness distribution in the joint was characterized and the joint sheer tests were performed according to DVS-2811. Materials of the aluminum bonding wire and the battery cell cylinder used for joining were also characterized. Bonding process on the machine used in this study is controlled by its duration, wire deformation or both of these parameters and consist of wire touch down and several (usually 2 or 3) bonding phases. Parameters of each bonding phase consist of bonding force, bonding force ramp, ultrasonic generator current/voltage, ultrasonic generator current/voltage ramp and bonding time. Each wire has at least 2 bonds connected by wire loop and is ended with wire pre-cut and tear off.</p></div>","PeriodicalId":34313,"journal":{"name":"Journal of Advanced Joining Processes","volume":"9 ","pages":"Article 100197"},"PeriodicalIF":4.1,"publicationDate":"2024-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666330924000141/pdfft?md5=91379b831957d4c930e072ff278b1a2a&pid=1-s2.0-S2666330924000141-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139632585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental analysis and numerical simulation of Laser welding of thin austenitic stainless-steel sheets using two models: Bilinear isotropic strain hardening model and Johnson–Cook model 使用两种模型对奥氏体不锈钢薄板的激光焊接进行实验分析和数值模拟:双线性各向同性应变硬化模型和约翰逊-库克模型
IF 4.1
Journal of Advanced Joining Processes Pub Date : 2024-01-28 DOI: 10.1016/j.jajp.2024.100198
Hichem Aberbache , Alexandre Mathieu , Rodolphe Bolot , Laurent Bleurvacq , Axel Corolleur , Fabrice Laurent
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