DIMENSIONAL METROLOGY COURSES (ONLINE COURSES)

Introduction to the principles of industrial metrology applied to company quality control. Terms and definitions (measuring, estimated value, measurement, etc.), units of measurement, writing rules, traceability of measurements, national calibration system, calibration certificate, metrological confirmation, the concept of repeatability, the concept of reproducibility, outline of measurement uncertainty, conformity assessment in the presence of uncertainty, outline of the main test equipment in the company. Practical exercises and final test.

The regulations in force regarding the drafting/ reading of the industrial technical design. The layout of a drawing (sheet size, cartouche, folding), the scales of representation, types of lines, the methods of projection, overturned views, sections and cuts, representation of the dimensioning. Practical exercises and final test.

Metrology in the company. Measurement uncertainty in the conformity assessment of a product. The main dimensional instrumentation to support product or process control. Notes on other types of instruments (manometers, thermometers, torque wrenches, etc.). The recording of the measurement data and their analysis. Final test for assessment and/ or qualification.

Introduction to the geometrical specifications of the product (dimensional tolerances and hints on geometric tolerances). The dimensional errors in the components, the dimensional specifications on design, the ISO system of dimensional tolerances in mechanical couplings, the general dimensional tolerances. Introduction to geometric tolerances, geometrical errors in components, references in mechanical design, geometric tolerances of shape (outline), geometric tolerances of position (outline), geometric tolerances of orientation (outline). General geometric tolerances (outline). Practical exercises and final test.

The geometric tolerances present on design. Tolerances of shape, orientation, positioning and oscillation. The reference systems and their correct construction. Practical examples through analysis of technical drawings and discussion in the classroom of the requirements present in them.

Introduction to microgeometric surface characterization (roughness) and description of analysis parameters (both in terms of amplitude and wavelength). Introduction to surface roughness, main fields of application of roughness specifications. The primary profile and roughness profile. The sampling length and the measurement length. The main amplitude parameters (Ra, Rz, etc.), the main wavelength parameters (Rsm, etc.), other parameters (Rsk, Rku, etc.), the graphic symbols of drawing representation, the measurement procedures, classification of the measuring instruments, classification of samples for verification/calibration. Practical exercises and final test.

The ISO scheme of tolerances. Introduction to the geometric tolerances currently present in the drawing. Analysis of some dimensioning schemes to evaluate the correct specification of geometric errors. The structure of design references: from the single datum, to the creation of complex reference systems in the assessment of geometric tolerances. New operators of specification: minimum squares, maximum inscribed, minimum circumscribed, etc. Advanced management of the tolerance zone: combined zone, offset zone, etc. Auxiliary projection indicators: how to indicate the direction of the intersection plane, how to indicate the direction of the projection plane. Analysis of some examples of quotation present within the legislation.