Class Mechanics Technology I

Mechanical Technology I addresses the main technologies for material transformation using heat, with emphasis on welding and casting processes. Its focus is on understanding the structural changes and resulting properties, as well as the necessary precautions during their application. This course lies within the fields of materials engineering, mechanical technology, and industrial maintenance, enabling students to understand the influence of these processes on the reliability, durability, and performance of components. Its relevance in the Industrial Engineering and Management program stems from the importance of properly selecting manufacturing and repair methods, supporting decision-making in failure situations, and optimizing production processes, thus ensuring competitiveness, innovation, and organizational efficiency.

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Introduction Course framework, objectives, and relevance of mechanical technology in Industrial Engineering and Management. Introduction to Welding Technology Concepts, process classification, and industrial applications. Terminology and Symbols Standards and symbols applied to welding and cutting processes. Welding Machines Types of equipment, power sources, and operation. Physics of the Electric Arc Physical principles of the arc and its influence on the process. Shielded Metal Arc Welding Characteristics, electrode types, applications, and limitations. TIG and MIG/MAG Welding Fundamentals, operating parameters, advantages, and uses. Plasma Welding Main features, technical differences, and applications. Resistance and Laser Welding Principles, applications, and relevance in different sectors. Casting Processes, molds, alloys, typical defects, and precautions.

The course applies active methodologies that foster autonomy, critical thinking, and practical application. In addition to lectures and practical sessions, students carry out assignments focused on research and problem-solving. The first assignment challenges them to study a welding process not covered in class, developing research skills and critical analysis. In the second assignment, students are presented with a practical scenario where they must select the most suitable welding method, justify their choice using welding parameter tables, prepare a budget as if acting as a company, and defend their decisions. Additionally, an industrial visit is organized, allowing students to experience real applications of welding technologies and reinforcing the link between theory and practice.

Ferreira, J. M. G. de C. (1999). Tecnologia Da Fundicao (F. C. Gulbenkian (ed.)). Fundação Calouste Gulbenkian. Santos, J. O., & Quintino, L. (1998). Processos De Soldadura (I. de S. e Qualidade (ed.); 2a). Instituto de Soldadura e Qualidade.