What is CAD modelling?
CAD (Computer Aided Design) modelling is the computer-aided creation of digital 2D or 3D models of components, assemblies or tools. It forms the basis for modern product development, production planning and the Toolmaking. The best-known CAD programmes include SolidWorks, Siemens NX, CATIA, Autodesk Inventor and Creo. They use the common exchange formats STEP, IGES, STL, DXF to digitally visualise and edit components or assemblies.
CAD possibilities
CAD modelling enables a precise and reproducible representation of technical components. Parametric geometries allow dimensions, dependencies and functions to be clearly defined and easily changed if required. The modelling options range from simple geometric basic bodies to complex free-form surfaces, allowing virtually all components and transitions to be depicted cleanly. Relationships between individual elements or components are retained so that designs adapt automatically when changes are made. In addition, technical information such as materials, tolerances or surfaces can be stored directly in the model. The generated data forms the basis for Toolmaking, simulation or manufacturing processes.
What is CAD modelling used for?
With CAD, components can be digitally created, planned and optimised geometrically before a physical product is created. The advantages:
- Design of complex components and assemblies
- Basis for simulation of loads or production processes
- Direct connection to CAM and CNC systems for tool production
- Fast iteration of design variants
- Basis also for 3D printing and rapid tooling
In rubber and plastics technology, CAD is used for the design of moulded rubber parts, Rubber-metal- and Rubber-plastic-composite parts. Good CAD data saves time and costs - in production, in the Toolmaking and in quality assurance.