Content level 2

  • Target group: Production metrologists
  • Learning aims: The Seminar furthers basic knowledge of production metrology for advanced measuring technicians. The didactic approach used in the seminar is based on the latest findings. The content comprises the latest knowledge on the topic, form and positional tolerance, test plan interpretation, programming, monitoring, and the machine and sensor technology used. An enhanced understanding of measuring jobs and influencing parameters enables measuring technicians to reduce measuring uncertainties and thus to make measurement results more reliable and easier to compare. The minimization of costs and waste is supported.
  • Course duration: 5 days
  • Completion: Exam, certificate

2-1 Overview of the Entire Measuring Process
Short repetition of the contents of stage 1

2-2 Geometric Overview
Standard geometry elements (recap), Free-form surfaces, Symmetry, Normal vectors and perpendiculars, Parallelism, Angles and projection, Spatial distances (recap

2-3 Introduction to GD&T (Geometric Dimensioning and Tolerancing)
Some symbols for form, orientation and location tolerances , Some definitions of form, orientation and location tolerances (ISO and ASME), Datum structure, Examples of straightness, angularity and position

2-4 Measuring Strategy
Inspection plans and their function, Analysis of the measuring task, Defining the part coordinate system, datums and specifying the datum order, Identifying geometry elements, Locating the part, Probing sequence for the geometric elements, Appendix: Gear measurement

2-5 Probing Strategy - Tactile Sensors
Number and Distribution of Probing Points, Probing Force and Speed, incl. Material Properties, Stylus Diameter, Special Styli, Scanning, Appendix: Form measuring machines)

2-6 Probing Strategy - Image Processing
Single-shot measurement, Multi-shot measurement, Edge finder, contour image processing, local threshold and gradient method, illumination, filter, scanning, auto focus

2-7 Distance Sensors and other Sensors
Laser triangulation sensors, Foucault sensor, White light sensor, Light section sensor, autofocus, Photogrammetry, Fringe protection, Influence on the measuring results, Laser Tracker, Measuring Arm

2-8 Computer Tomography
Physical principle, tomography on the image, initial samplings, deviations to the nominal geometry, measurement of sections, checking the material structure

2-9 CNC Programming
Types of CNC programming, principles of structured programming, user interfaces, parametric programming, program design - optimizing for cycle time and accuracy, feature-based measurement, offline collision simulation

2-10 Measurement of Free Form Surfaces
Element types in Free Form Surface Metrology, basics, procedures in free form surface metrology, referencing and probing strategies

2-11 Evaluation
Evaluation Criteria: Function-oriented and Manufacturing-oriented Evaluation Methods, Differences in the Association Methods, Constructions, Digital filtering, Measurement Logs

2-12 Effects on the Measurement Result
Effects on the Measurement Result, Reduction of Measurement Uncertainty, Detection and Reduction of Systematic and Random Effects, Temperature Compensation

2-13 Documentation
Principles of Documented and Reproducible Documentation, Graphic Evaluation, Form Plots, Measurement Reports and their improvement, documentation of fixturing, sensors, qualification, clamping and measurement strategy, Regulated industries: Validation and documentation requirements, electronic signature, audit trail 

2-14 Good Measurement Practice
Metrology adds value, Good Measurement Practice, Necessity of Cooperation