Difference between CAD and CAM

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Difference between CAD and CAMhttp//crbtech.i
n/CAD-CAM-Training/
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Introduction
Before introduction of CAD, engineers used to
three different views on a piece of paper, and
they had to simplify their product to make
calculations on the product behaviour in presence
of external forces.But With the arrival of CAD
software, now engineers can create accurate 3D
models.
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Difference between CAD and CAE

• CAD is an acronym for computer-aided design and
  refers to using a computer to see a product idea.
• Whereas CAE is an acronym for computer-aided
  engineering, which is an analysis of the designed
  visualization.
• The is used to CAD design a product whereas CAE
  is used to simulate it.

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• Cont'd
• Models used by CAD and CAE software looks
  almost same. However, a closer look reveals that
  they are basically different. From a mathematical
  standpoint, they do not have a lot in common.
• There are various ways to combine geometrical
  elements to form a 3D geometry. The CAD models
  are designed as an assembly of volumes with
  parameters as the density of the actual material.
  The model used for CAD modeling is a parametric
  model with a construction history. This offers an
  advantage of being able to change features.
• In a CAE atmosphere, the CAD model is transformed
  into a mesh while pre-processing. The mesh
  consists of either cubes, cuboids or
  tetrahedrons, so basically polygon meshes.
• This offers an advantage of being able to change
  features.

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• Processes involved in CAD are definition of a
  geometric model, definition translator, geometric
  model, interface algorithm, design and analysis
  algorithms, drafting and detailing,
  documentation.
• Processes involved in CAM are Geometric model,
  interface algorithm, process planning, NC
  programs, inspection, assembly and packaging.
• Different softwares used in CAD are AutoCAD,
  Autodesk Inventor, CATIA, SolidWorks.
• Different softwares used in CAM are Siemens NX,
  Power MILL, WorkNC, SolidCAM

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• Thank You !
• http//crbtech.in/CAD-CAM-Training/