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SEMINAR ON :SEMINAR ON :
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INTRODUCTION
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EXAMPLE
Pro-eng
Catia
Delcam
Master cam
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CAD/CAMCAD/CAMIt is a technology concerned with the useof
digital computers to perform certainfunction in digital computer to
performcertain function in designing and production.This technology
is growing indirection ofgreater integration of designing and
manufacturing with have traditionally beingtreated as distinct
& separate function in aproduction firm.
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DESIGN PROCESSDESIGN PROCESS
Recognition of need
Definition of problem Analysis and optimization
Evaluation
Presentation
Recognition of need Definition of problem Analysis and
optimization Evaluation Presentation
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Reorganizationof need
Definitionof problem
Synthesis
Analysis &Optimization
Evaluation
Presentation
Dig:- The general design process as defined by Shigley[15]
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CADCADCAD means a design process usingsophisticated computer
graphics,backed with computer softwarepackages to aid analysis and
costing
associated with design work.
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PHASES OF CADPHASES OF CAD
Geometrical modeling.
Engineering analysis.
Design review.
Evaluation.
Automated drafting & presentation.
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GEOMETRICAL MODELLINGGEOMETRICAL MODELLING
It is a model of a product by which
we come to know about thegeometrical of product.
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ENGINEERING ANALYSISENGINEERING ANALYSIS
Depending upon the application of
product, the product is analyzedbefore it actually manufactured
forstress, strain etc.
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DESIGN REVIEWDESIGN REVIEW
Once a design is made and in future it
is requires some modification in samedesign then no need to go
for a newdesign from scratch. We can reviewthe previous design.
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EVALUATIONEVALUATION
Cost of the product is evaluated
before it is manufacturing.
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AUTOMATED DRAFTINGAUTOMATED DRAFTING
AND PRESENTATIONAND PRESENTATION
Once the design is made, it is
represented on a drawing sheet. Sothat it can be understood by
everyonefrom design engineer to operator. So
to manufacture it.
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(Dig: model design by CAD software)
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BENEFITS OF CADBENEFITS OF CAD Faster rate of production
drawing. Greater accuracy of drawing. Neater drawing.
No repetition of drawing. Special drafting techniques not
available in conventional drafting. Quicker design calculation
and analysis
with a given input or charge in input. Integration of design
with other
disciplines.
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CAD COMPUTERSCAD COMPUTERS
Micro
Mini Mainframe &
Super computer
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INPUT AND OUTPUTDEVICESFOR CAD
INPUT DEVICES :INPUT DEVICES :
Light pen
Joysticks
Mouse
Trackball Tablet
OUTPUT DEVICES :OUTPUT DEVICES :
LCD (liquid crystal display)
Laser printers
Inkjet printer
Dot-matrix printer Plotters
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CAMCAM
CAM is basically known as computeraided manufacturing. The
machining of
a part is fully control by computersystem. When irregular shape
orcomplex profile is needed to bemachined and this is not possible
bymanually are machined with the helpof CAM.
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Picture of CNC MachinePicture of CNC Machine
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EXAMPLEEXAMPLE
(Dig: model made with out CAM software)
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(Dig: model by CAM programs)
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CAM SOFTWARECAM SOFTWARE
Del CAM
Master CAM
Edge CAM
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BENEFITS OF CAMBENEFITS OF CAM Higher production rate with
lower
work force. Less likelihood of human error.
Increase in manufacturing efficiency Repeatability of production
process
via storage of data
Analysis of deficiency to takecorrect measure
Better production control
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DISADVANTAGES
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