Content level 1

  • Target group: Production metrologists
  • Prerequisites: None
  • Learning aims: The seminar lays and consolidates basic knowledge of production metrology for beginners and advanced metrologists. The didactic approach used in the seminar is based on the latest findings. The seminar covers the latest knowledge regarding dimensional tolerancing, programming basics, measurement process planning and the machine and sensor technology used. The 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.
  • Duration of course: 5 days, depending on previous level of knowledge
  • Completion: Exam, certificate

 

 

1-1 Units

SI Units, incl. Definition and History, Base Quantities, Derived Quantities, Prefixes of Units, Angles, Conversion Degrees <-> Radian, Conventional Measuring and Test Equipment

 

1-2 Coordinate Systems

(Mathematical) Drawing Plane, Origin, Cartesian Coordinates, Right-Hand Rule, Translation and Rotation, Polar Coordinates, Cylindrical and Spherical Coordinate System

 

1-3 Coordinate Measuring Machines

History of Coordinate measuring machines, Cantilever/Bridge/Column/Gantry Types, Differences in the Types, Axis Guide, Measuring Computer and Software, Work Holding Fixture, Accuracy of Coordinate Measuring Machines, CAA Correction, Form Measuring Machines

 

1-4 Sensors

Sensor selection, Stylus System, Stylus, optical sensors, Image Processing, Laser Triangulation

 

1-5 Basic definitions

Drawing Entries (Dimensions, Tolerance Symbols), Standard Reference, Differences Nominal Element - Real Element - Extracted Element - Associated Element, Free Form surfaces

 

1-6 Dimensional Tolerance

Dimensional Tolerances, Taylor?s Principle, Standards, Symbols and Drawing Entries, Length Dimensions, Angular Dimensions, Limiting Dimensions and Fits, ISO Fitting/Mating System, Common Tolerances

 

1-7 Geometric elements

Standard form elements: Plane/ Cylinder/ Cone/ Sphere/ Line/ Circle/ Point/ Ellipse, Vector, Normal Vector, Minimum Number of Points, Projection

 

1-8 Geometric constructions

Calculation of characteristics out of two geometrical features (distance, angle), Calculation of features out of two geometrical features (Intersection, Symmetry), Calculation of new features out of some geometrical features (Construction)

 

1-9 Preparing a Measurement on the Coordinate Measuring Machine

Standardized Temperature, Part Cleaning, Temperature Control, Fixturing, (Avoiding Distortion), Fixturing Systems, CMM and Software Startup

 

1-10 Stylus Selection and Qualification

Stylus System Selection, Stylus Qualification, Reference Sphere, Reference Stylus, Stylus Sphere Radius Correction, Stylus Tip Bending Correction, Mechanical Filter Effect of the Stylus, Errors of Incorrect Qualification,

 

1-11 Measuring using Coordinate Measuring Machines

Determining part Coordinate System, Difference to Control Coordinate System, Manual and automatic Alignment, Probing, References, Consequences of Collisions, Number of Probing Points and their Distribution, Influences on measuring result

 

1-12 Evaluation of Measurement and Statistics

Importance of Statistical Parameters, Outliers, Scattering, Histogram Representation, Compensation Methods, Influences on measuring result

 

1-13 Inspection planning

Completely defined characteristic, Purpose of the Measurement, Production of workpiece, Function of workspiece, Feature description, Manufacturing Methods and Accuracies, Shape Deviations, Uncertainty Effects, Awareness of Measuring Uncertainty, Inspection planning, Identifying measuring features

 

1-14 Documentation and Quality Management

Measurement Reports, Quality Control Charts, Cooperation between Design - Production - Testing, Reproducible and Clear Measurement Documentation, Measuring Strategy documentation