Technology of Welding

Major: Computer-integrated technologies of art and jewelry casting
Code of subject: 6.136.03.O.028
Credits: 7.00
Department: Department of Oil and Gas Engineering and Welding
Lecturer: Dzyubyk A. R.
Semester: 5 семестр
Mode of study: денна
Мета вивчення дисципліни: The purpose of the course is to provide students with a general level of knowledge of technologies that are currently used in production and will be developed in the future, to build an understanding of the physical processes that ensure the formation of high-quality welded joints.
Завдання: The study of an educational discipline involves the formation of competences in students of education: general competences: Integral competence (IC): The ability to solve complex specialised problems and practical problems of metallurgy in professional activities or in the process of study, which involves the application of theoretical provisions and methods of engineering and is characterised by complexity and uncertainty of conditions. professional competences: - Critical understanding of scientific facts, concepts, theories, principles and methods necessary for professional activities in the field of metallurgy (PC 2); - Ability to apply and integrate knowledge based on an understanding of other engineering specialities (PC 3); - Awareness of the contexts in which knowledge of metallurgy can be applied (e.g. process and equipment control, management, technology development, etc.) (PC 7); - Ability to solve typical engineering problems of foundry production, in particular with the use of modern computer modelling tools (PC 13); - Ability to manage complex actions or projects in foundry to ensure the achievement of the goal, taking into account all aspects of the problem being solved, including those related to production, operation, maintenance and disposal (PC 16); - Ability to rationally choose materials, standard technological processes, equipment and tooling for the manufacture of metal products, including the use of modern CAD/CAM/CAE systems, in order to ensure the specified properties, required quality indicators, minimum cost and environmental impact with high technical and economic production indicators (PCC 1.1).
Learning outcomes: Kn 2 Knowledge and understanding of the engineering sciences underpinning the specialisation at the level required to achieve the other programme outcomes, including sufficient awareness of their achievements Kn 6 Understanding of the broad interdisciplinary context of metallurgy Sk 1 Ability to identify, formulate and solve typical and complex and unpredictable engineering tasks and problems in foundry production, including collecting and interpreting information (data), selecting and using appropriate equipment, tools and methods, applying innovative approaches and specialised software Sk 4 Ability to develop, design and model foundry processes and systems that meet established requirements, including awareness of non-technical (society, health and safety, environment, economy) aspects, select and apply adequate design methodologies, including computer-aided design tools
Required prior and related subjects: Physics, Chemistry, Mathematics Machine parts, Applied materials science, Resistance of materials
Summary of the subject: While studying this educational discipline, the student acquires theoretical and practical knowledge of the basics of welding technologies, their technological support (equipment, materials). At the same time, the fields of their application are studied from the point of view of the characteristics of the welded materials of the products and the requirements for their operation. The ability to reasonably choose a special welding method and give recommendations for its implementation.
Опис: Welding: basic concepts and essence. Classification and brief characteristics of the main welding methods. Welded joints and seams. Preparation and assembly of parts for welding. Defects of welded joints. Crack resistance of welded joints and weldability of steels. Technological methods of combating deformations and stresses during welding. Manual arc welding with coated metal electrodes Arc welding under a layer of flux Arc welding in shielding gases with fusible electrodes: powder and continuous section Arc welding with non-fusible electrodes Electroslag welding Technological ways of increasing the productivity of arc welding The influence of arc welding parameters on the shape of the weld Materials for welding Electric arc power sources Contact welding Special welding methods Welding technologies of carbon and low-alloy steels
Assessment methods and criteria: Students' knowledge is assessed using the following methods: 1. Current express control by means of a virtual learning environment or oral survey, tests, assessment of activity and submitted proposals. 2. Defense of reports for laboratory work by oral examination of theoretical material on the topic of the work and research methodology. 3. Conducting a written exam based on the results of studying the discipline, which consists of tasks of various levels of difficulty. 4. Carrying out the oral component based on the results of the written exam, the questions of which are based on the content of practical tasks.
Критерії оцінювання результатів навчання: Current control (PC): Protection of reports for laboratory work by oral examination of theoretical material on the topic of the work and research methodology, current express control by means of a virtual learning environment (45 points) Examination control: written component (45 points), oral component (10 points) Total for the discipline: 100 points
Порядок та критерії виставляння балів та оцінок: 100–88 points – (“excellent”) is awarded for a high level of knowledge (some inaccuracies are allowed) of the educational material of the component contained in the main and additional recommended literary sources, the ability to analyze the phenomena being studied in their relationship and development, clearly, succinctly, logically, consistently answer the questions, the ability to apply theoretical provisions when solving practical problems; 87–71 points – (“good”) is awarded for a generally correct understanding of the educational material of the component, including calculations, reasoned answers to the questions posed, which, however, contain certain (insignificant) shortcomings, for the ability to apply theoretical provisions when solving practical tasks; 70 – 50 points – (“satisfactory”) is given for weak knowledge of the component’s educational material, inaccurate or poorly reasoned answers, with a violation of the sequence of presentation, for weak application of theoretical provisions when solving practical problems; 49-26 points - ("not certified" with the possibility of retaking the semester control) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to apply theoretical provisions when solving practical problems; 25-00 points - ("unsatisfactory" with mandatory re-study) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to navigate when solving practical problems, ignorance of the main fundamental provisions.
Recommended books: Educational and methodological support 1. Dzyubik A.R. Metals and welding in construction: teaching. manual / A. R. Dzyubik, I. B. Khomych - Lviv, Drohobych: Posvit, 2018. - 238 p. - ISBN 978-617-7624-74-4. 2. Methodological instructions for performing a cycle of laboratory work from the courses "Metals and welding in construction" and "Fundamentals of welding technologies" for students of specialties 19.192 "Construction and civil engineering", 13.136 "Metallurgy", 13.132 "Materials science", 13.131 "Applied mechanics" , 13.133 "Industrial engineering". Inc.: A.R. Dzyubik, R.V. Palash, I.B. Khomych - Lviv: Publishing House of the National University "Lviv Polytechnic", 2016. - 40 p. 3. Fusion welding technology: Methodological instructions for coursework and calculations in the disciplines "Metals and welding in construction" and "Fundamentals of welding technologies" for students of specialties 19.192 "Construction and civil engineering", 13.136 "Metallurgy", 13.132 "Materials science", 13.131 "Applied mechanics", 13.133 "Industrial engineering" / Incl. A. R. Dzyubik, - Lviv: Publishing House of the National University "Lviv Polytechnic", 2016. - 12 p. 4. Gas-flame processing of metals: methodological instructions for the cycle of laboratory work from the courses "Metals and welding in construction", "Metalology and welding" and "Fundamentals of welding technologies" for students of training areas 192 "Construction and civil engineering", 131 "Applied Mechanics", 132 "Materials Science", 133 "Industrial Machine Development" and 136 "Metallurgy". Acc.: A. R. Dzyubik, I. B. Khomych - Lviv: NULP Publishing House, 2018. - 20 p. Recommended Books Basic 1. Special methods of welding: a textbook / I. V. Krivtsun, V. V. Kvasnytskyi, S. Yu. Maksymov, G. V. Yermolaev, edited by academician of the National Academy of Sciences of Ukraine, doctor of technical sciences, professor B. E. Paton. – Mykolaiv: NUK, 2017. – 346 p. 2. Technology of electric arc welding: Textbook / I. V. Humenyuk, O. F. Ivskiv, O. V. Humenyuk. - K.: Gramota, 2007. - 512 p. Equipment and technology of gas welding works: Textbook / I. V. Humenyuk, O. F. Ivaskiv. - K.: Gramota, 2005. - 272 p. 3. Palash V.M. Metallurgical aspects of weldability of iron-carbon alloys: Study. manual. – Lviv: KINPATRI, 2003. -236 p 4. Palash V.M., Palash R.V. Welding and surfacing of cast iron: training. manual. - Lviv, Badikava N.O., 2017. - 178 p. Auxiliary 1. Bykovskyi O.I., Pinkovskyi I.V. Welder's Handbook. – Kyiv: Technika, 2002. - 336 p. 2. Pidgaetskyi V.V. Pores, inclusions and cracks in welds - K.: Technika, 1970. - 236 p. 3. Equipment and technologies of welding work: training. manual / I. V. Humeniuk. - K.: Gramota, 2014. - 120 p. Information resources 1. Virtual learning environment of the Lviv Polytechnic National University, discipline "Welding Technologies". Compilers: Dzyubik A. R., Khomych I. B. Access mode: https://vns.lpnu.ua/course/view.php?id=14285
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