2. Lecture #4Introduction to CAD/ CAM
In Lecture #3 we have discussed In Lecture #4
Unit- I – (A) Introduction
(B) Window and View
port
Unit- I – (A) Introduction
List of computer aided
technologies
Influence of computers in
manufacturing environment
The Product Cycle with CAD/CAM
The Product Cycle with
CAD/CAM
Implementation of typical CAD
Process in a CAD/CAM system
Implementation of a typical CAM
Process on CAD/CAM
Achievements in CAD/CAM
Product Engineering
3. Lecture #4Introduction to CAD/ CAM7/23/2020
Product cycle and CAD/CAM
A diagram showing the various steps in the product cycle is presented in
Figure. The cycle is driven by customers and markets which demand the
product. It is realistic to think of these as a large collection of diverse
industrial and consumer markets rather than one monolithic market.
Depending on the particular customer group, there will be differences in
the way the product cycle is activated.
The product development cycle
starts with developing the product
concept, evolving the design,
engineering the product,
manufacturing the part, marketing and
servicing
4. 7/23/2020
4 Lecture #4
Process
Planning
Production Scheduling
Quality
control
Drafting
Design
Engineering
Product
concept
Order new
Equipment
tooling
Customer
Computer- aided
design
Computer automated
Drafting and
documentation
Computer-aided
Process
planning
Computerized scheduling,
Material requirements planning,
Shop floor control
Computer controlled
Robots,
Machines, etc.
Computer-aided
Quality
control
Product revised with CAD/CAM overlaid
8. Lecture #4Introduction to CAD/ CAM
Implementation of typical CAD Process in a CAD/CAM system
Main constituents of CAD tools
Definition Translator
Geometric model
Definition of geometric model
Design and Analysis algorithms
Drafting and detailing
Documentation
To CAM process
Design
Change
s
Computer graphics concepts
Geometric Modeling
Design tools
(analysis, codes, heuristics
etc. )
CAD tools
9. Lecture #4Introduction to CAD/ CAM
Implementation of a typical CAM Process on CAD/CAM
Main Components of CAM tools
Interface Algorithm
Process Planning
Geometric Model
NC Programs
Inspection
Assembly
Packaging
Networking Concepts
CAD tools
Manufacturing tools
(Manufacturing Process,
heuristics, etc.)
CAM tools
11. Achievements in CAD/CAM
Interactive computer graphics
systems
Color computer graphics
Animated computer graphics
Design engineering analysis
Parts classification and coding
Design retrieval systems
Automated drafting
Design and manufacturing database
Computer assisted process planning
Computerized machinability data
systems
Computer generated work standards
Computer assisted NC part
programming
Finely tuned production scheduling
Material requirement planning
Shop floor control
CNC, DNC
Computer controlled robots
Microprocessor control applications
Computer aided inspection
Computer aided quality testing
D.R.Nishad,Dept.OfMechanical
Engg.
12. Product engineering
Definition of product - The end result of the manufacturing
process, to be offered to the marketplace to satisfy a need or
want.
Product engineering refers to the process of designing and
developing a device, assembly, or system such that it be
produced as an item for sale through some production
manufacturing process.
Product engineering usually entails activity dealing with issues of
cost, produce-ability, quality, performance, reliability, serviceability
and user features.
Product engineering is an engineering discipline that deals with
both design and manufacturing aspects of a product.
D.R.Nishad,Dept.OfMechanical
Engg.
13. Product engineering- Ideally the designer is supposed to
consider all these factors while finishing the design.
Product functions
Product Specifications
Conceptual design
Ergonomics and
Aesthetics
Standards
Detailed Design
Prototype development
Testing
Simulation
Analysis
Strength
Kinematics
Dynamics
Heat
Flow
Design for Manufacture
Design for Assembly
Drafting
D.R.Nishad,Dept.OfMechanical
Engg.
