Introduction: drawing as technical language. Standardization of technical drawings. Classification of the drawings. General standards: formats and sizing, folding, title block, lines, scale. Representation methods: classification of projections. Introduction to perspectives. Orthogonal and oblique projections. Orthographic projections. Use of orthographic projections: layout and choice of views. Sections: rules, types. Dimensioning: standards, systems, dimensions of geometric elements, functional and technological dimensioning. Dimensional errors: ISO system of tolerances, types and calculation of couplings, general tolerances, tolerance of chained dimensions. Microgeometric errors: definition, measurement, symbols and choice of the roughness. Macrogeometrical errors: geometric tolerancing in outline.
Threads: elements of a thread, types, representation and dimensioning.
Threaded connections elements: bolts (nuts and screws), studs, inserts, unscrewing devices. Removable non-threaded connections elements: keys, mention of plugs, safety rings and stops, splined coupling joints. Outline of permanent connections. Materials for mechanical engineering: outline of mechanical properties, notes on types of materials and heat treatments, designation.