2. Lecture #3Introduction to CAD/ CAM7/23/2020
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In Lecture #2 we have discussed In Lecture #3
Unit- I – (A) Introduction
(B) Window and View
port
CAD/CAM Overview
Introduction of CAD/CAM
Benefits of CAD/CAM
CAD systems Hard ware
CAD systems Graphics software
List of computer aided technologies
Unit- I – (A) Introduction
List of computer aided
technologies
Influence of computers in
manufacturing environment
The Product Cycle with CAD/CAM
3. List of computer-aided technologies
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Computer-aided design (CAD)
Computer-aided architectural design (CAAD) - software programs are the
repository of accurate and comprehensive records of buildings and are
used by architects and architectural companies.
Computer-aided design and drafting (CADD)
Computer-aided Engineering (CAE) The use of computer methods to
support basic error checking, analysis, optimization, manufacturability etc.
of a product design.
Computer-aided Tool Design (CATD)
Computer-aided process planning (CAPP) is the use of computer
technology to aid in the process planning of a part or product, in
manufacturing. CAPP is the link between CAD and CAM in that it provides
for the planning of the process to be used in producing a designed part.
Lecture #3Introduction to CAD/ CAM7/23/2020
Computer-aided technologies (CAx) is a broad term describing the use of
computer technology to aid in the design, analysis, and manufacture of
products-
4. Cont…
4
Computer-aided quality assurance (CAQ) is the engineering
application of computers and computer controlled machines for the
definition and inspection of the quality of products.
Computer-aided reporting (CAR)
Computer-aided maths instruction (CAMI)
Computer-aided requirements capture (CAR)
Computer-aided rule definition (CARD)
Computer-aided rule execution (CARE)
Computer-aided software engineering (CASE) is the scientific
application of a set of tools and methods to a software system which
is meant to result in high-quality, defect-free, and maintainable
software products.
Lecture #3Introduction to CAD/ CAM7/23/2020
5. Cont…
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Component information system (CIS)
Computer-integrated manufacturing (CIM) Computer-integrated manufacturing (CIM)
the manufacturing approach of using computers to control the entire production process
Computer numerical controlled (CNC)
Computational fluid dynamics (CFD) is one of the branches of fluid mechanics that uses
numerical methods and algorithms to solve and analyze problems that involve fluid flows.
Electronic design automation (EDA)
Enterprise resource planning (ERP) is an Integrated computer-based system used to
manage internal and external resources including tangible assets, financial resources,
materials, and human resources
Knowledge-based engineering (KBE) is a discipline with roots in computer-aided design
(CAD) and knowledge-based systems but has several definitions and roles depending
upon the context.
Lecture #3Introduction to CAD/ CAM7/23/2020
6. Cont…
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Manufacturing process management (MPM) is a collection of technologies and methods used
to define how products are to be manufactured.
Manufacturing process planning (MPP)
Material requirements planning (MRP) is a production planning and inventory control system
used to manage manufacturing processes.
Manufacturing resource planning (MRP II) is defined by APICS as a method for the effective
planning of all resources of a manufacturing company.
Product data management (PDM) is the business function often within product lifecycle
management that is responsible for the creation, management and publication of product data.
Product lifecycle management (PLM) is the process of managing the entire lifecycle of a
product from its conception, through design and manufacture, to service and disposal
Computer-aided manufacture (CAM) is the use of computer software to control machine tools
and related machinery in the manufacturing of workpieces.
Lecture #3Introduction to CAD/ CAM
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Influence of computers on manufacturing environment
The use of computers in manufacturing is a
methodological approach to the enterprise in order to
improve industrial performance.
This requires a range of broad technologies that
have become realisable only because of computer
technology.
The total components that can be assumed to
consists of a number of interlinked domains are
shown in following figure-
Lecture #3Introduction to CAD/ CAM
9. Lecture #3Introduction to CAD/ CAM7/23/2020
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Financial Management
Cost
Sales & Marketing
Purchase order control
Vendors
Computer
Aided Design
(CAD)
Manufacturin
g System
Business
Data
Processing
System
Computer
Aided
Manufacturing
(CAM)
Features and solid modeling
Variational and parametric
modeling
Computer graphics, Graphic
standards IGES, DXF, STEP, etc.
Desgin Analysis tools- FEM, FEA,
Simulation
Mechanisms, Test & analysis
Design tools Mechanical,
Hydraulic,
Electronics etc.
Factory level production planning
Production management
MPS, MRP, MRP- II, JIT, OPT
Bill of materials
Capacity planning
Inventory control
Manufacturing information
generation
Process planning
Production planning
CNC part programming
Robot programming
CMM programming
Key CIM Technology
Computers networks
System design and analysis
Distributed processing
Database management
Modeling and analysis
Expert analysis & quality engineering
Production Activity, Machining
Assembly, Material handling, Storage
Production control, loading,
scheduling etc
10. Lecture #3Introduction 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
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11 Lecture #3
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
