Home/ Majors directory/Welding Technologies and Equipment/Technology of Field Assembly
Technology of Field Assembly
Major: Welding Technologies and Equipment
Code of subject: 7.131.05.O.004
Credits: 4.00
Department: Department of Robotics and Integrated Mechanical Engineering Technologies
Lecturer: Stupnytskyy Vadym
Semester: 1 семестр
Mode of study: денна
Завдання: The study of the discipline involves the formation and development of students' competencies in accordance with the Standard of Higher Education in the specialty 131 Applied Mechanics for the second level of higher education:
General competencies:
Ability to identify, formulate and solve engineering, technical and scientific problems.
Ability to use information and communication technologies.
Ability to generate new ideas (creativity).
Ability to develop and manage projects.
Ability to communicate with representatives of other professional groups of different levels (with experts from other fields of knowledge/ types of economic activity).
Ability to learn and master modern knowledge.
Ability to communicate in a foreign language
Professional competencies:
Ability to apply appropriate methods and resources of modern engineering to find optimal solutions to a wide range of engineering problems using modern approaches, forecasting methods, information technology and taking into account existing constraints under conditions of incomplete information and conflicting requirements.
The ability to describe, classify and model a wide range of technical objects and processes based on a thorough knowledge and understanding of the theories and practices of mechanical engineering, as well as knowledge of related sciences.
Ability to work independently and function effectively as a team leader
Ability to clearly and unambiguously communicate own conclusions, knowledge and explanations to specialists and non-specialists, including in the course of teaching activities
Ability to design technological processes and equipment and ensure the regulated quality indicators of parts and machines.
Ability to establish and implement technological support for regulated indicators of accuracy and surface quality, performance and reliability indicators of machine parts and engineering products in accordance with the requirements of Industry 4.0
Ability to perform modeling of engineering production technologies using modern research methods with the choice of methods and mathematical apparatus for solving practical problems
Learning outcomes: Apply specialized conceptual knowledge of the latest methods and techniques for designing, analyzing, and researching structures, machines, and/or processes in mechanical engineering and related fields;
To develop and put into production new types of products, in particular, to perform research and development work and/or develop technological support for their production process;
To use modern methods of optimizing the parameters of technical systems by means of system analysis, mathematical and computer modeling, in particular in conditions of incomplete and contradictory information;
Independently set and solve innovative tasks, argue and defend the results obtained and decisions made;
Clearly and unambiguously present the results of research and projects, communicate own conclusions, arguments, and explanations in the state and foreign languages orally and in writing to students and representatives of other professional groups of different levels
Master modern knowledge, technologies, tools and methods, particularly through independent study of professional literature, and participation in scientific, technical and educational events.
Search for necessary information in scientific and technical literature, electronic databases, and other sources; assimilate, evaluate and analyze the information received with the presentation of results at scientific and technical conferences and their publication in scientific periodicals. .
Develop managerial and/or technological solutions under uncertain conditions and requirements, evaluate and compare alternatives, analyze risks, and predict possible consequences.
To develop and apply advanced integrated technologies of machine-building production to ensure the regulated quality characteristics of machine parts, their operational characteristics and reliability indicators
Apply information technology and control systems in the technological preparation of production and implementation of engineering technologies
Required prior and related subjects: Previous academic disciplines:
Cutting theory
Engineering technology
Related and subsequent disciplines:
Scientific research in mechanical engineering technology
Performing a master's qualification work
Summary of the subject: The study of the discipline involves: formation of knowledge on designing assembly process routes. Tasks of the discipline: acquiring skills in creating an algorithm for designing an assembly route, designing operations and transitions, studying the theory of basing, acquiring work skills in building assembly technological schemes, familiarization with the organizational forms of assembly depending on the type of production, familiarization with the stages of the assembly process and types of parts connections machines into assembly units, studying the manufacturability of structures, manufacturability during assembly depending on the type of production, specifics of work, as well as the specifics of assembling machine parts, consideration of issues of product quality and accuracy, technological principles of ensuring the quality of products in mechanical engineering: calculations of design dimensional chains that ensure accuracy of assembly of mechanisms, study of methods of ensuring accuracy of assembly, methods of technical control and testing of machines, features of balancing of mechanism parts, study of characteristics of methods of technology of assembly of fixed connections, typical of machines and mechanisms, acquiring the skills of designing the assembly route of an assembly of medium complexity, acquiring the skills of designing the assembly route of an assembly of medium complexity
Опис: BASICS OF DEVELOPMENT OF TECHNOLOGICAL PROCESSES OF ASSEMBLY.
Features of the design of the assembly process. Initial data for the development of technology. Stages of technological design. Normalization of assembly work. Development of an assembly scheme. Design of devices for assembly. Manufacturability of machine designs. Mechanization and automation of assembly. Indicators of mechanization and automation of assembly.
CLASSIFICATION OF JOINTS OF PARTS DURING ASSEMBLY
Classification of connections. Movable and fixed joints. Detachable and permanent connections. Classification of joints by contact characteristics. Design and technological bases for assembly. Principles of ensuring the unity and constancy of bases during assembly. General characteristics of mechanical, welded, brazed, adhesive joints and joints formed as a result of plastic deformation. Selection of the most economical method of joining parts during assembly. The structure of the technological cost of assembly.
ENSURING THE ACCURACY OF ASSEMBLY PRODUCTS.
The concept of assembly accuracy. Factors affecting the occurrence of errors in assembly, their classification and ways to avoid them. Dimensional analysis in assembly technology. Methods of ensuring the accuracy of the closing link in the product: complete interchangeability, incomplete interchangeability, group interchangeability, compensation and fit.
PREPARATION OF PARTS FOR ASSEMBLY.
Fitting work during assembly. Tolerance of the closing link provided by fitting. Ensuring the quality of the surface. Lapping. Classification of methods of lapping parts during assembly. Tools for lapping. Auxiliary materials for lapping (pastes, lubricants). Quality control of lapped surfaces. Polishing. Polishing technology. Tools for polishing. Quality control of polishing. Scraping. Classification of scoring methods. Technology for scraping. Tools for scraping. Drilling and reaming. Their use in ensuring the accuracy of the relationship between the surfaces of mating parts. Bending. Methods of bending. Bending of pipe parts.
WASHING AND APPLICATION OF PROTECTIVE MATERIALS.
The need to wash and paint products. Chemical, electrochemical and ultrasonic washing. Technology for washing parts and assemblies. Varieties of paints. Technology of painting. Preparation of parts for painting. Classification of putties and methods of their application. Quality control of paint and varnish application.
ASSEMBLY OF DETACHABLE JOINTS.
Classification and general characteristics of threaded connections. Dependence of the screwing torque on the type of threaded connection. Installation of studs. Methods of ensuring the immobility of threaded connections, their advantages and disadvantages. Assembly errors and methods of their elimination. Assembly of screw and bolted connections. Stages of assembly. Technology and sequence of tightening nuts when assembling critical connections. Manual, mechanized and automated tools.
ASSEMBLY OF FIXED JOINTS
Assembly technology using thermal methods. Assembly using plastic and elastic deformation methods. Welding of products. Classification of welding methods. Classification of electrodes. Varieties of welds. Welding technology. Soldering parts during assembly. Types of soldering. Classification of solders. Bonding of parts during assembly. Classification of adhesives. Technology of gluing products.
ASSEMBLING TYPICAL COMPONENTS OF MACHINES AND MECHANISMS
Assembling products with long shafts and couplings Installing plain bearings. Classification of plain bearings. Errors in pressing and methods of their elimination. Installation of rolling bearings. Classification of rolling bearings. Errors when installing bearings. Seating when installing bearings. Assembly of gears and worm gears. Balancing of products after assembly. Types of balancing.
Assessment methods and criteria: Current control:
1. Assessment of mastering the theoretical material is carried out by means of test control (test tasks from the Electronic Educational and Methodological Complex of the Virtual Learning Environment of Lviv Polytechnic National University in the discipline "Technological Support of Machine Parts Reliability" (https://vns.lpnu.ua/course/view.php?id=882)), oral questioning.
2. Defense of reports on practical work in oral form by questioning theoretical material on the topic of work and research methods or in writing by conducting a control measure on the topic of work in the form of a test.
Final control:
1. Examination control (exam). The written component consists of three-level theoretical and practical tasks and is conducted in a test form in the Virtual Learning Environment. The oral component is based on the results of the written component for a more thorough assessment of knowledge.
Критерії оцінювання результатів навчання: Maximum score in points:
Current control - 30 points
Examination control - 70 points:
The written component is worth 50 points.
The oral component is worth -20 points.
The total for the discipline is 100 points.
Порядок та критерії виставляння балів та оцінок: 100-88 points - ("excellent") is assigned for a high level of knowledge (some inaccuracies are allowed) of the educational material of the component contained in the main and additional recommended literature sources, the ability to analyze the phenomena studied in their interconnection and development, clearly, concisely, logically, consistently answer the questions posed, the ability to apply theoretical provisions in solving practical problems; 87-71 points - ("good") is assigned 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 in solving practical problems; 70 - 50 points - ("satisfactory") is assigned for poor knowledge of the educational material of the component, inaccurate or poorly reasoned answers, with a violation of the sequence of presentation, for poor application of theoretical provisions in solving practical problems; 49-26 points - ("not certified" with the possibility of retaking the semester control) is assigned for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to apply theoretical provisions in solving practical problems; 25-00 points - ("unsatisfactory" with mandatory re-study) is assigned for ignorance of a significant part of the component's educational material, significant errors in answering questions, inability to navigate when solving practical problems, ignorance of the basic fundamental provisions.
Recommended books: Basic literature
1. Stupnytskyy V. Lecture Notes for the Education Course "Mechanical Assembly" For Students 131 Direction "Applied Mechanics".- Lviv, 2020, 71 p.
2. Boothroyd, G. Product Design for Manufacture and Assembly. 3-rd Edition. Geoffrey Boothroyd, Peter Dewhurst, Winston A. Knight. // CRS Press. – London. – 2011. – 710 p.
3. Whitney, D.E. Mechanical assemblies: their design, manufacture, and role in product development/ Daniel E. Whitney// New York.- Oxford University Press.- 2004. – 573 p.
4. Zorowski, C.F. Mechanical Design for Assembly/ Carl F. Zorowski. /N.C. State University Press.- Raleigh, North Carolina, US.- 2004. - 189 p.
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