An Introduction
from Prof. Goldsman’s lecture notes
How would you define
“Industrial Engineering”?
What is IE?
Frederic W. Taylor  Father of Industrial Engineering
“Industrial Engineering is concerned with the design, improvement,
and installation of integrated systems of people, materials, information,
equipment, and energy. It draws upon specialized knowledge and skill
in the mathematical, physical, and social sciences together with the
principles and methods of engineering analysis and design to specify
predict, and evaluate the result to be obtained from such systems”
– Industrial versus Manufacturing
– A big-picture thinking discipline
PROBLEM SOLVER!!
What is IE? (Cont’d)
“A branch of engineering that engages in the study of how
to describe, evaluate, design, modify, control and improve
the performance of complex systems, viewed over time and
within their relevant context.”
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Logistics/Supply Chain Systems
Financial/Economic Systems
Health Systems
Manufacturing Systems
Etc.
IE Core Courses
Based on Tech’s Curriculum:
1.
2.
3.
4.
5.
6.
Probability Theory
Statistics and Its Application
Modeling
Engineering Economy
Stochastic Processes
Quality Control
7.
8.
9.
10.
11.
12.
Simulation
Logistics
Manufacturing
Human Machine Interface
Optimization
Senior Design
Fundamental Issues
Flow (accumulation and conversion): 3, 5, 7, 8, 9
Randomness: 1, 2, 3, 5, 6, 7
Complex decision making (preferences): 5, 7, 8, 9, 11
Optimization: 3, 11
People (learning): 10
Economics: 3, 4
Diner Dash Game
Diner Dash Game
Learn how to think like an IE
What can you observe in the game?
KISS Rule!
Remember, IE is not equal to
manufacturing job!
More on … What is IE?
Improve system performance by:
Analyzing: Complex and uncertain interactions
Formulating:
Fundamental topics  specialized studies
Solving:
“Management Control Systems” (finance)
“Production Planning and Control Systems”
“Human Activity System” (synchronize for quality)
MCS and PPCS
Management Control System:
Forecasting
Engineering Economy
Recruiting, training, and placement of employees
MRP, QC, Inventory Control, etc
Production Planning and Control System:
Manufacturing Process
Materials, machines, and equipments
Facility Layout and flow of material
Warehousing
Database
Safety procedures, etc
System Classification
Natural versus Man-made Systems
Natural: nature activity
Man-made: human activity
Static versus Dynamic Systems
Static: no associated activity
Dynamic: time-varying behavior
Physical versus Abstract Systems
Physical: physically existing components
Abstract: symbol representation
Open versus Closed Systems
Open: Interacts with its environment
Closed: little interchange with its environment
What is Manufacturing
Engineering?
Designing the production process of a
product
Evaluate
Select
& Set
QA
Compared to IE?
Design
Cost
Estimation
Product Structure and
Specifications
Product
Sub-assembly
Hierarchical chart:
…
Components
RM
Bill Of Materials
(Taken From Heizer and Render)
Assembly Drawing & Charts
(Taken From Heizer and Render)
Operation Process Chart
(Taken from Francis et. al.)
Cost Calculation
Two Types:
Fixed Cost: constant regardless of the number of
parts are made
e.g. Setup Cost, Design Cost, Location Cost
Variable Cost: cost varies directly with the number of
parts produced
e.g. Operator Cost, RM Cost, Utility Cost
Total Cost = Fixed Cost + Variable Cost * Number of Units
TC = FC + VC * (#units)
Industrial Processes
Refining and alloying
Alloy: combining >= 2 metals to get better properties
Metal properties (important):
Tensile Strength (withstand elongation forces)
Hardness (withstand penetration forces)
Impact Resistance (absorb energy)
Malleability (to be shaped or extended)
Fatigue Resistance (withstand repeated application of a
force)
Corrosion Resistance (withstand corrosive forces)
Industrial Processes (Cont’d)
Casting
Forming objects by pouring liquid material into a mold and
allowing the material to solidify
i.e. making pudding
Old process but economical and effective
Metal Forming
Hot: temperature above its re-crystallization temperature
Cold: temperature below its re-crystallization temperature
Processes: Roller, wire drawing, forging, extrusion, bending,
and drawing and stretching
Metal Cutting
e.g. Shearing, Turning, Drilling, Shaping, Milling, Broaching,
Sawing-Filling, Grinding, etc.
Industrial Processes (Cont’d)
Welding
e.g. Electric Arc, Resistance Welding, Beam Welding, Thermit
Welding, Pressure Welding, Gas Welding, Brazing and
Soldering, etc
Assembling
Various parts and sub-assemblies are put together to form a
complete product
Batch process versus continuous process
Finishing
Product is made to be more presentable or effective
e.g. honing, lapping, polishing, buffing, brushing, tumbling,
surface cleaning, coating, etc
Cost Estimation
Total manufacturing cost, consists of:
Material
Direct: any material cost chargeable to a product directly
e.g. paper cost for printing a book
Indirect: all other material costs
e.g. cleaning compound and brushes
– Labor
• Direct: any labor cost chargeable to a product directly
e.g. operator
• Indirect: all other labor costs
e.g. marketing salary
Overhead
Costs other than direct labor or direct material costs
e.g. indirect material and labor costs
Supply Chain
DREAM Cycle
What are the main things
customers care about?
Customer Value Drivers
Cost
Quality
Speed
Innovation
So… what is IE?
“Man, if you have to ask what it is, you’ll never
know.”-Louis Armstrong’s definition of jazz