Advanced Manufacturing Systems
Design
© 1999 John W. Nazemetz
Manufacturing
Planning and Control
Lecture 9 Topic :
Discussion Session:
Midterm Exam
October 19, 1999
ADVANCED
MANUFACTURING
SYSTEMS DESIGN
Week 9 Discussion
Midterm Exam
Slide 2
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 1
1 (25 pts.) Comprehensively define and
briefly discuss the broad definition of
product life cycle and the CIM
environment discussed in this class. Be
sure to discuss the intersection of the
life cycles of product and production
facilities.
Slide 3
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 1 -- Response
• Expectation
– Discussion of Product Life Cycle Model of
Design, Produce, Operate, Support, Dispose
• Discuss/Define Each Phase of the cycle and the
associated CIM activities in each phase.
• Thought many/most students would use the Chris
Vaughn model as the basis upon which the
answer was developed, especially to illustrate the
intersection of product and production facility life
cycles
– Most did not.
Slide 4
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Slide 5
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 2
2. (25 pts.) Define and explain Quality
Function Deployment. Be sure to
explain its role in CIM, Concurrent
Engineering, etc.
Slide 6
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 2 – Response (1)
• Definition of QFD
– What it is
• A method for assuring quality in product.
– What it Does
• Translates/Associates Customer and Producer
Definitions/Measurements of Quality.
• Role
• Input to Concurrent Engineering
• Means to Assure all Viewpoints included
• Comparison/Benchmarking
Slide 7
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 2 – Response (2)
• Role
–
–
–
–
Input to Concurrent Engineering
Means to Assure all Viewpoints included
Comparison/Benchmarking
Means to Assess Relative Ranking for
Product Features
– Input to Process Design
Slide 8
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 3
3. (25 pts.) Consider the various models
proposed in the text and in lecture for
developing part families and
manufacturing cell groupings. List,
briefly define, and evaluate four
models/methods for cell and/or family
formation (Discuss the strengths and
shortcomings of each) .
Slide 9
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 3 – Response (1)
• Methods (Choose/Select any 4)
– Machine-Component Grouping (Production
Flow Analysis
– Rank Order Clustering Analysis
– Similarity Coefficients
• Single Linkage Cluster Analysis
• Weighted Similarity Indices (Siefoddini and
Wolfe)
Slide 10
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 3 – Response (2)
• Methods (Choose/Select any 4)
– Mathematical Programming Methods
• Cell Design w/Known Part Families
• Cell Design w/Unknown Part Families
• Vakaria and Wemmerlov – Minimization of
Backtracking
– Data Based Methods
• GTSS like Grouping
– Common Features/Traits in Database
Slide 11
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 4
4. (25 pts.) Consider Robots and
Numerical Control Machines. Explain
the similarities and differences between
the two. Briefly explain the role/use of
each in modern Computer Integrated
Manufacturing Systems.
Slide 12
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 4 – Response (1)
• Similarities
• Differences
– Same Basic Control
Methodology
– Same Concepts
– Same Names (open
loop, closed …)
– Move part or Tool
through Space (same
function)
– Similar Hardware
Components
Slide 13
– NC -> Technical
Solution
– Robotics -> Economic
Solution
– Error Accumulation/
Precision
– Programming
Languages
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 4 – Response (2)
• Role/Use in CIM
– NC
• Part production/Interface w/CAD Model
• Reduce Set-up Costs/Economic Lot Sizes
• Automate in Cells, FMS
– Robotics
• Labor Replacement ($, Hazards,Precision)
• Automated Cells, FMS (MH Component)
Slide 14
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 5
5. (25 pts.) Consider the term
"CAD/CAM Systems". List the
topics/techniques studied in the course
and classify each as a CAD or a CAM
system. Explain the logic/reasoning
behind the classifications you have
listed and compare your list to
"conventional" categorization of the
topics/techniques.
Slide 15
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 5 – Response (1)
• CAD
–
–
–
–
–
–
CA Drafting (Design Support, 3-D)
CAPP
Engineering Analysis
QFD (Defining Requirements/Benchmarking)
Concurrent Engineering
Group Technology (Shape)
• CAM
– Production Facility Operation
• Family/Cell Formation Techniques
• PLCs
– NC, Robotics, Processing Equipment
Slide 16
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Question 5 – Response (2)
CAM
– Production Facility Operation
• Family/Cell Formation Techniques
• PLCs
–
–
–
–
Slide 17
NC, Robotics
Processing Equipment/Methods
Group Technology (Processing)
Cellular and Flexible Manufacturing Systems
Computer Integrated
Manufacturing Systems
© 1999 John W. Nazemetz
Advanced Manufacturing Systems
Design
© 1999 John W. Nazemetz
Week 9 Discussion Topic:
Mid term Exam
October 19, 1999
END OF SEGMENT