Computer Integrated Manufacturing

1. Subject – CIM

2. Syllabus
1. Computer Aided Manufacturing
2. NC/CNC Machine Tools
3. Programmable Logic Controllers
4. GroupTechnology and CAPP
5. Flexible Manufacturing System
6. RobotTechnology
7. Integrated Production Management System

3. Course
Outcome
• Understand different activities associated with
computer aided manufacturing.
• Analyze part classification and coding system for
group technology.
• Demonstrate industrial robotic arm.
• Explain different components of flexible manufacturing
system.
• Develop part program for different machine
components manufactured by CNC lathe & VMC.
• Compare traditional process planning control and
computer aided process planning control.

4. INTRODUCTION
 CAM – Computer Aided Manufacturing
 Application of computers in manufacturing in an
integrated way
 Computer system to plan, manage and control the
manufacturing operation through the direct or
indirect computer interface with the manufacturing
machine.

5. OBJECTIVE
OF CAM
 Automation and integration
 High Productivity
 High Product Quality
 Reduction in Manufacturing lead time
 Reduction in manpower
 Reduction in material handling
 Integration with CAD

6. SCOPE
OF CAM
 Computer aided process planning
 Computer assisted production planning
 Computer aided manufacturing of part
 CNC
 Robots
 Material handling equipments
 Computer aided quality control

7. APPLICATION
OF
COMPUTERS
 Monitoring and control application (direct)
 Comp monitored
 Comp controlled
 Manufacturing support application (indirect)
 CA process planning
 CA production planning
 CA material planning

8. EVOLUTION
OF CAM:
 Primary factors that have lead to the development of
the CAM concept and associated technologies
include the following:
1. Development of numerical control (NC)
2. The advent and cost effectiveness of computers
3. Manufacturing challenges, such as global
competition, high labor cost, regulations, product
liability, and demand for quality products
4. The capability to cost attractiveness of
microcomputers.

9. TYPES OF
MANUFACTURING:
 Manufacturing industries can be grouped into four
categories:
1. Continuous process industries
2. Mass production industries
3. Batch production (discrete manufacturing)
4. Job Production

10. Mass
Production
Batch
Production
Job
Production
Product variety
Production
Quantity

11. Scope of
CIM

12. Objective
of CIM
 To improve the product quality
 To lower the product cost
 To reduce the delivery time
 To reduce the waste
 To reduce the inventory
 To increase the flexibility in manufacturing
 To coordinate and organize factory data effectively
 To automate the communication within factory

13. CIM
WHEEL:
 CIM wheel is the framework of meaning
of CIM.
 In CIM wheel the central core that
handles the common manufacturing
data, and information resource
management and communications.
 The radial sectors surrounding the
core represent the various activities of
manufacturing such as design,
material processing, and inspection.
 These activities have been grouped
under three categories – Manufacturing
planning and control, product/process,
and factory automation.
 The outer rim represents the upper
management functions – strategic
planning, marketing, manufacturing
and human resources management
and finance.

14. CASA/SME’S
CIM WHEEL

15. BENEFITS
OF CIM:
TANGIBLE BENEFITS:
1. Higher profits
2. Less direct labor
3. Increased machine use
4. Reduced scrap and rework
5. Increased factory capacity
6. Reduced inventory
7. Shortened new product development time
8. Fewer missed delivery dates

16. INTANGIBLE
BENEFITS:
1. Higher employee morale
2. Safer working environment
3. Improved customer image
4. Greater scheduling flexibility
5. Grater ease in recruiting new employees
6. More opportunities for upgrading skills

17. MAJOR
ELEMENTS
OF CIM
SYSTEM:

18. ROLE OF
ELEMENTS
OF THE CIM
SYSTEMS:
1. Marketing
2. Product design
3. Planning
4. Purchase
5. Manufacturing engineering
6. Factory automation hardware
7. Warehousing
8. Finance
9. Information management

19. Components
(Elements) of
CIM (CIM
Wheel)
 CAD
 Geometric modeling
 Engineering analysis
 Drawing review and evaluation
 Automated drafting
 CAM Planning and Control (CAMPC)
 CAPP
 CMRP (comp material resource planning)
 Computerized work scheduling
 NC part programming
 CAM
 FMS
 Comp process monitoring and control
 CAQC
 CA Business functions (CABF)
 Purchase
 Inventory and stock control
 Accounts and billing
 Sales order processing
 Customer billing
 Packing and forwarding
 Marketing
 Plant maintenance

21. Computer
Hardware
Layout ofCIM

22. CIM Product
Cycle

23. Advantages
of CAM
 Generates complete tool path required for the
automatic manufacturing
 Effective planning and reduce the manufacturing
time
 Automatic inspection results in a better product
quality
 This is first step towards CIM

24. Limitation
of CAM
 Cost of hardware and software in CAM is high
 Highly trained manpower is required

25. Role of
Management
in CAM
 Basic objective of CAM is the complete integration
and automation of all functions of manufacturing
 For the success of CAM greater integration of
human resources and factory resources required.
 Also dismantling of the inter-departmental barriers
and greater co-ordination among different
departments requires.
 This is possible only with the active involvement of
the top management.

26. Role of
Management
in CIM
 Develop a business model for a factory to
understand the problems.
 Develop a functional model for the processes and
activities.
 Develop an information model for system interfaces,
database, information exchange.
 Develop a network model for communication and
networking.
 Develop a organizational model for integrating the
various islands of automation
 Develop the implementation plan which takes into
account special features of the business and
operations.

27. Participative
management
parameters
 Organizational goals
 Organizational structure
 Management inputs
 Employee-employer relationship
 Employee issues and problems
 Defining team work
 Definition of team
 Forming team
 Rewarding teamwork

28. Role of
manufacturing
engineers in CIM
 Understand design process
 CAD tools
 Maintenance of their own machine
 They must understand various systems like
hydraulic, pneumatic, electric, electronic and
computers.
 Profile 21 by SME
 Functions as integration engineers
 Functions as business administrators
 Functions as effective team leaders

29. Impact of
CIM on
Personnel
 Downsizing of workforce
 Requirement of change in skill sets
 Specialists need to generalize and generalists need
to specialize
 Cultural change in management