manufacturing processes with the aid of cad/cam systems...

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AMEM 405 slide 1

Manufacturing Processes with theAid of CAD/CAM Systems

AMEM 405

Dr. Sotiris Omirou

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CAD/CAM - Definitions

CAD stands for Computer Aided Designing and CAM stands forComputer Aided Manufacturing. The combined CAD/CAM is the technology concerned with the use of computers to perform product designing and manufacturing operations.

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CADProgram

CAMProgram

CNCMachine

DXF File NC File

• Geometry of part is created (3D or 2D; surface or solid)

Computer Aided Design

• Program the part with G/M-codes

Computer Aided Manufacturing

• Produce the part

•Milling

•Lathe

•Electric Discharge

Computer Numerical Control

Structure of a CAD/CAM system

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The functions of CAM programs

CAMCAMCAMCAMprogramprogramprogramprogram

NC codesNC codesNC codesNC codes

CAM programs define:CAM programs define:CAM programs define:CAM programs define:• method of machining• feature/shape to machine• tool used for machining• path of the tool

Programs in NC/CNC code for the machining process

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Review of Machining Operations

- Milling

- Turning

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MILLING

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AMEM 405 slide 9Mill Bits

graphics from McMaster Carr online catalog: www.mcmaster.com

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Milling Tools and Tool Inserts

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Drills and Reamers

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Milling Operations• Facing: removes material across the top surface• Contouring: removes material to a specified depth

along a CAD geometry• Drilling: uses points identified on a CAD layer to

drill holes to a specified depth• Pocketing: removes all material within the outline

of a CAD geometry• Surface of Revolution: removes all material within

a surface generated by revolving geometry about the X or Y axis

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33--DimensinalDimensinal surface surface milling:milling:

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CNC Machining Centers

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Vertical Milling Machining center

Tool Post

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A Milling Machining center in operation

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Automatic Tool Change on aMilling Machining center

AMEM 405 slide 20TURNING

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TURNING

AMEM 405 slide 22Turning Operations in figures

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AMEM 405 slide 23CNC Lathe

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Application Example (CNC Turning)

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