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The FEM-based Numerical Analysis of Welding Distortions in Spatial-Flat Elements of Large-Sized Welded Structures 基于有限元法的大型焊接结构空间平面单元焊接变形数值分析
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2019.4/2
J. Pikuła, T. Pfeifer, J. Niagaj
{"title":"The FEM-based Numerical Analysis of Welding Distortions in Spatial-Flat Elements of Large-Sized Welded Structures","authors":"J. Pikuła, T. Pfeifer, J. Niagaj","doi":"10.17729/ebis.2019.4/2","DOIUrl":"https://doi.org/10.17729/ebis.2019.4/2","url":null,"abstract":"The issue of welding distortions concerns both large welded structures such as bridges, storage tanks and elements of welded building structures as well as small and precise elements. Particularly susceptible to welding distortions are thin-walled structures, in which hard-to-predict welding distortions are responsible for serious technical problems. This paper presents the results concerning the welding of spatial and flat elements used in large-sized welded structures in terms of welding distortions. Due to their geometry, large welded structures may be the source of complex welding distortions, e.g. corrugations. The research-related works discussed in the article were carried out using the finite element method (FEM). The validation of FEM model of the welding process was performed using an optical system measuring welding distortions of an actual structure.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126882616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Plasma Transferred Arc (PTA) Cladding and TOPTIG Cladding of Tubes Made of Steel 13CrMo4-5 13CrMo4-5钢管的等离子转移电弧(PTA)包覆和TOPTIG包覆
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2021.5/4
J. Rykala, M. Różański
{"title":"Plasma Transferred Arc (PTA) Cladding and TOPTIG Cladding of Tubes Made of Steel 13CrMo4-5","authors":"J. Rykala, M. Różański","doi":"10.17729/ebis.2021.5/4","DOIUrl":"https://doi.org/10.17729/ebis.2021.5/4","url":null,"abstract":"The article presents test results concerning the effect of a cladding method and technological process parameters on geometrical properties and dilution of overlay welds. Test overlay welds were deposited on tubes made of steel 13CrMo4-5. The chemical composition of the filler material used in the deposition process corresponded to that of alloy Inconel 625. The study involved the performance of macro and microscopic metallographic tests of the overlay welds as well as the identification of related dilution. The study also included hardness measurements involving the cross-section of the overlay welds as well as tests of the chemical composition of the overlay weld surface (paying attention to the maximum content of iron in the overlay weld, which should not exceed 5%). Adopted PTA and TOPTIG cladding parameters enabled the satisfaction of the maximum criterion related to the acceptable content of iron in the overlay weld, ensuring the stability of the cladding process and the invariable geometry of the overlay welds around the entire tube circumference.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131708670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Current State of the Art and the Issues of the Drawn Arc Welding of Studs Performed Using a Ceramic Ferrule 用陶瓷卡箍进行螺柱拉弧焊的技术现状和问题
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2019.2/5
Mateusz Kapler, J. Nowacki, A. Sajek
{"title":"The Current State of the Art and the Issues of the Drawn Arc Welding of Studs Performed Using a Ceramic Ferrule","authors":"Mateusz Kapler, J. Nowacki, A. Sajek","doi":"10.17729/ebis.2019.2/5","DOIUrl":"https://doi.org/10.17729/ebis.2019.2/5","url":null,"abstract":"The authors performed the state-of-art analysis of recent achievements concerned with drawn arc stud welding involving the use of ceramic ferrules. The research focused on surface preparation, technological parameters, process limits and magnetic arc blow. Because of the complexity and correlations of primary electromagnetic phenomena in stud welding processes as well as due to the lack of simple and practically applicable theoretical explanation of their effect on welding results, emphasis was given to demand for industrially applicable simulation tools enabling the forecasting of stud welding results. It is believed that the above-named goal could be achieved using the non-linear regression model of an artificial neural network based on empirical data obtained on a real-time basis from simple process controlling measurement circuits.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134433125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative Evaluation of Eddy Current Signals Generated by Defects in Austenitic Heat Exchanger Tubes 奥氏体换热器管缺陷产生涡流信号的定量评价
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2019.4/6
D. Kukla, A. Zagórski, Ł. Sarniak
{"title":"Quantitative Evaluation of Eddy Current Signals Generated by Defects in Austenitic Heat Exchanger Tubes","authors":"D. Kukla, A. Zagórski, Ł. Sarniak","doi":"10.17729/ebis.2019.4/6","DOIUrl":"https://doi.org/10.17729/ebis.2019.4/6","url":null,"abstract":"The research discussed in the article involved the analysis of impedance characteristics originating from various non-standard defects detected in the material of an austenitic tube. Research-related test results were obtained when scanning a tube made of steel 316, using an internal probe and a MultiScan 5800 device. The tests involved the use of the classical ECT vortex current method applied to examine both the tube containing artificial defects, simulating the most common defects in industrial heat exchanger tubular inserts, and reference tubes containing standard defects. The non-standard defects (created artificially) simulated combinations of cracks, pits or other defects formed as a result of exposure to aggressive chemical and mechanical factors present in industrial conditions. The tests involved the scanning of the entire length of the tube at a constant rate. The tests were performed using a transient probe recording electrical impedance changes in a relative mode and in an absolute mode. The interpretation of results related to the non-standard defects was based on a comparison with the results obtained in relation to the standard reference defects. Values obtained in relation to the non-standard defects enabled, among other things, the identification of their volume and position in relation to the measurement probe. In most cases it was not possible to interpret the geometry of a given defect. The foregoing could be achieved using other non-destructive testing techniques.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131599082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gas-Shielded Metal Arc Welding 气体保护金属电弧焊
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2019.4/5
A. Pocica
{"title":"Gas-Shielded Metal Arc Welding","authors":"A. Pocica","doi":"10.17729/ebis.2019.4/5","DOIUrl":"https://doi.org/10.17729/ebis.2019.4/5","url":null,"abstract":"The article discusses the history of MIG/MAG welding, pointing out the primary achievements and patents connected with the evolution of the MIG, MAG and Arcogaz (steam-shielded) welding methods, as well as presents related Polish welding equipment and works related to the implementation of the above-named method in the Polish industry.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125105018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Projection Welding of Nuts with Full Projections with Use of Electromechanical Operating Force System 机电操作力系统在全凸点螺母凸焊中的应用
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/EBIS.2019.2/1
Z. Mikno, Szymon Kowieski, A. Pilarczyk
{"title":"Projection Welding of Nuts with Full Projections with Use of Electromechanical Operating Force System","authors":"Z. Mikno, Szymon Kowieski, A. Pilarczyk","doi":"10.17729/EBIS.2019.2/1","DOIUrl":"https://doi.org/10.17729/EBIS.2019.2/1","url":null,"abstract":": The projection welding of nuts performed using the pneumatic force system (PFS) was subjected to numerical and experimental analysis enabling the identification of the window of welding parameters taking into considera-tion boundary conditions including expulsion, torsional strength and the deformation of the nut thread. The welding process was subjected to optimisation involving the use of a new, i.e. electromechanical force system (EFS). The opti-misation-related approach involved the reduction of welding current and the ex-tension of a welding current flow time in comparison with those obtained when using the pneumatic force system. It was assumed that the acceptance criteri-on would be the breaking torque not lower than that obtained under the most favourable welding conditions performed using the PFS. The research work involved comparative numerical calculations (performed using the SORPAS software) in relation to both, i.e. the PFS and EFS. The technological welding tests were performed using inverter welding machines (1 kHz) provided with various (electrode) force systems. The research work also included metallographic tests and torsional strength tests. As a result of the application of EFS and a special innovative hybrid algorithm for controlling the initial electrode force, a wider and higher weld core was obtained. The depth of \"penetration\" into the sheet was also greater. As a result, the welded joint has a higher strength (by 30%). Technological welding tests for the new EFS system were carried out for a 25% lower welding current compared to PFS. Despite the lower welding current for EFS, the welding energy is slightly lower but the welding quality for EPS is significantly higher. 2b). Results of modelling results are compared with the results of experiments for both PFS (c) and EFS (a) technology","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"2003 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127328354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applicability of Laser Welding in the Joining of Cast Elements of the Combustion Engine Manifold and Turbine. Part 1. Laser Welding of the Turbine with the Compensating Capsule 激光焊接在内燃机歧管和涡轮铸件连接中的适用性。第1部分。涡轮与补偿胶囊的激光焊接
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2020.1/3
S. Stano, R. Anioł
{"title":"Applicability of Laser Welding in the Joining of Cast Elements of the Combustion Engine Manifold and Turbine. Part 1. Laser Welding of the Turbine with the Compensating Capsule","authors":"S. Stano, R. Anioł","doi":"10.17729/ebis.2020.1/3","DOIUrl":"https://doi.org/10.17729/ebis.2020.1/3","url":null,"abstract":"The article presents attempts related to the laser welding of combustion engine manifold and turbine. The study discussed in the article made it possible to identify the potential and limitations connected with the application of laser welding technologies, workmanship accuracy and the positioning of elements to be welded. The study-related tests enabled the assessment of the effect of primary welding parameters on the shape of the weld both in terms of keyhole and melt-in welding processes. The first part of the research-related article discusses results concerning the laser welding of the turbine with the compensating capsule.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122271129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Pneumatic Force System in Resistance Welding 电阻焊中的气动力系统
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/ebis.2019.5/1
Z. Mikno, Michał Gradkowski
{"title":"The Pneumatic Force System in Resistance Welding","authors":"Z. Mikno, Michał Gradkowski","doi":"10.17729/ebis.2019.5/1","DOIUrl":"https://doi.org/10.17729/ebis.2019.5/1","url":null,"abstract":"The study involved the analysis of the pneumatic force system, used in resistance welding machines, in relation to the dynamics of electrode displacement. The analysis was performed in relation to two phases of the technological cycle, i.e. positioning pneumatics (from the activation of the pneumatic valve to the moment when electrodes come into contact with the material being welded) as well as the pneumatics of force accretion before and during the flow of current. The analysis, performed using the Festo software programme (phase 1) as well as using elements of the automatics system (phase 2), was focused on two important elements, i.e. time at which electrodes reached their stabilised position and the kinetic energy of electrode impact.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123470189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Use of 3D Scanning Technology in Measurements of Welding Distortions 三维扫描技术在焊接变形测量中的应用
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/EBIS.2019.1/3
J. Nowacki, N. Sieczkiewicz, Michał Nocoń
{"title":"The Use of 3D Scanning Technology in Measurements of Welding Distortions","authors":"J. Nowacki, N. Sieczkiewicz, Michał Nocoń","doi":"10.17729/EBIS.2019.1/3","DOIUrl":"https://doi.org/10.17729/EBIS.2019.1/3","url":null,"abstract":": The article describes primary issues related to measurements of welding distortions performed using 3D scanning methods. The study includes a review of available industrial 3D scanning solutions. The research involved the experimental investigation of high-strength steels containing welding distortions as well as the SAW surfacing of steel S960QL steel performed using various welding parameters. The research-related tests included the selection of an appropriate 3D scanning technology. During the tests, steel plates were measured using GOM ATOS III Triple Scan and 3D scans were obtained using Kinect for Windows v1 and v2, DAVID SLS-3. The research results demonstrated that the choice of a me-trology-grade 3D scanner used for measurements of weld distortions ensured the obtainment of required accuracy of measurements.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129714015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microstructure and Selected Mechanical Properties of Welded Joints in Austenitic Perforated Bottoms Made Using the Automated TOP TIG Method 自动TOP TIG法制备奥氏体穿孔底部焊接接头的显微组织和优选力学性能
Biuletyn Instytutu Spawalnictwa Pub Date : 1900-01-01 DOI: 10.17729/EBIS.2019.2/7
L. Tuz, Krzysztof Sulikowski
{"title":"Microstructure and Selected Mechanical Properties of Welded Joints in Austenitic Perforated Bottoms Made Using the Automated TOP TIG Method","authors":"L. Tuz, Krzysztof Sulikowski","doi":"10.17729/EBIS.2019.2/7","DOIUrl":"https://doi.org/10.17729/EBIS.2019.2/7","url":null,"abstract":"The article presents selected test results obtained during welding tests preceding a Welding Procedure Qualification, performed using a robotic TOP TIG welding station. The test results revealed the obtainment of welded joints characterised by proper geometry and proper austenitic structure. In addition, the article presents typical welding imperfections observed in relation to the adjustment of welding process parameters, i.e. hot cracks in the weld root area and cavities.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130344851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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