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This document provides an overview of CAD-CAM (computer-aided design and computer-aided manufacturing). It discusses the history of CAD-CAM from its origins in the 1950s to its development and integration in later decades. The document defines CAD as using computers to aid the product design process, while CAM refers to using computers in manufacturing planning and control. It then covers the technologies involved in CAD-CAM, its advantages like increased productivity and ability to alter designs with minimal effort, and limitations such as requiring expensive software and specialized skills. The document also lists several industries that utilize CAD-CAM and popular CAD-CAM software programs before concluding with thoughts on future developments in the field.

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CAD-CAMBY: MAHENDER PAL SINGHSAMARTH PATEL1
TABLE OF CONTENT1. Overview.2. Introduction. 2.1 Definition. 2.2 History.3. Technology.4. CAD-CAM 4.1 CAD-CAM Advantages. 4.2 CAD-CAM Limitations 4.3 CAD-CAM Applications. 4.4 Usage Industry.5. CAD-CAM Software. 5.1 Market Share.6. Summary and Conclusion.7. References.2
OVERVIEWHand DraftingDrafter, Set-Square, T-Square, French curvesComputer aided drafting 2D vector drafting.
3D solid and surface modeling.Computer aided manufacturing.38
INTRODUCTIONCAD and CAM or CAM/NC generally stands for Computer aided design and Computer aided manufacturing numerical control respectively.Designing usually starts with CAD software where the actual drawing of the part to be machined is made which is followed by generating tool paths on CAM software.4
DEFINITION OF CAD-CAMComputer Aided Design (CAD) is defined as the application of computer and graphics software to aid the product design from conceptualization to documentation.Computer Aided Manufacturing (CAM) is defined as the effective use of computer in manufacturing planning and control.510
HISTORYIn 1950s the MITs servo mechanism laboratory established the concept of Numeric control(NC) on three axis milling machine.In 1960s was that year in which Ivan Sutherland developed a sketchpad system on cathode ray tube.(General Motors announced their DAC-1 system and Bell Technologies introduced the GRAPHIC 1 remote display system).In 1980snew theories and algorithms developed and integration of various elements of design and manufacturing made the existence of manual drafting almost extinct.6
TECHNOLOGYFortran.UNIX, Linux, Windows, Mac-OS X.Mouse, Graphics Tablet.Space mouse / Space ball Stereoscopic glasses76
CAD-CAM AdvantagesIncreased productivity.Error free drafting.Repeatability.Improved Collaboration.Lower overhead costs.Designs can be altered with minimal effort.It gives us a zoom feature similar to a camera lens.Three- dimensional modeling.Ability to create a sectional view.Generating G and M codes.84
CAD-CAM LimitationsExpensive software.Special Skills required.Expensive machines required.High maintenance cost.Nature of material of the object.911
CAD-CAM ApplicationsCAE (Computer aided engineering)CAA (Computer aided analysis)
CIM (Computer integrated manufacturing)
CNC (Computer Numerical control)
CAP (Computer aided planning)
Photo realistic rendering.
Superimposition of objects.109
USAGE INDUSTRYAutomotive Industry.Aerospace and aircraft industry.Textile industry.Medical industry.Video gaming industry.Tool and Die Manufacturing industry.Die Manufacturing industry.Welding and Cutting industry.115
CAD-CAM SoftwaresMastercamEdgeCADTubeCADAlphaCAMMagicsAutoCADCatia V5IronCADPro/EngineerPro/MechanicaSolid WorksTurboCAD 6.5MetablenderAnd many more127

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