Matakuliah
Tahun
Versi
: Mechatronics 2
: 2005
: 1.0/0
Week 13
COMPUTER INTEGRATED
MANUFACTURING SYSTEM (CIMS)
1
Learning Outcomes
• By the end of this session, students will
have a general understanding of CIMS.
2
Elements
Manufacturing Model
1)
Man Power
Methods
Materials
Plants
Business
Administration
Obtaining
Business
Defining
Products and
Processes
Production
Distribution
Product and
Customer
Support
Functions
1)Duncan,
L.W.; “Manufacturing 2000”
3
Man Power Composition 1)
35%
30%
25%
20%
15%
10%
5%
0%
1
2
3
4
5
6
Trend of Shift Direction
4
Characteristics of Industrial Plants
• Mechanical Plant
–
–
–
–
Transient time <<
No. of variables <<
Measured variables >>
System parameters relatively vary from one
condition to another
• Process Plant
–
–
–
–
Transient time >>
No. of variables >>
Measured variables <<
System parameters relatively constant
5
Types of Automation
Quantity
Relatively Low
Continuous
Flow
Production
Changes of System Parameters
Mass
Production
Relatively High
Batch
Production
Job Shop
Production
Variety
6
Production Volume vs. Part Variety
Ref. Groover, Zimmers Jr.
7
CIMS
• Designed to fill the gap between high
production transfer lines and low
production NC machines.
• It incorporates CAD/CAM technologies,
e.g.
– Computer Numerical Control.
– Automated inspection methods.
– Industrial robots.
8
Types of Manufacturing System
• Special manufacturing system.
• Manufacturing cell.
• Flexible Manufacturing System (FMS).
Ref. Groover, Zimmers Jr.
9
Machine Tools
• Standard CNC machines
• Inspection stations.
• Selection of machine tools which make up a
CIMS depends on the processing requirements.
Factors that define the processing requirements
–
–
–
–
–
–
Part size
Part shape
Part variety
Product life cycle
Definition of future parts.
Operation other than machining, e.g. assembly and
inspection tasks.
10
Computer Control System
•
•
•
•
•
•
•
Machine control.
Direct numerical control.
Production control.
Traffic control.
Shuttle control.
Work handling system monitoring.
System performance monitoring and
reporting.
11
Benefits of CIMS
•
•
•
•
Increasing machine utilization.
Shorter manufacturing lead time.
Lower in process inventory.
Scheduling flexibility.
12