ROBOETHICS-CCS345 ETHICS AND ARTIFICIAL INTELLIGENCE.ppt
Manufacturing processes
1. Engineering Graphics
(A 3-Credit course with lectures, discussions, and hands-on practices)
Aim
The aim of this course are to familiarize and equip students with
global language of engineering drawing and manufacturing
processes.
Recommended Background
This is course is designed for 2nd year
degree students.
Textbook
Giesecke et al., Modern Graphics
Communications (4th Edition), Prentice
Hall, 2010
4. What is Manufacturing
From Latin manu factus, means “made by hand.”
Making of goods & services for sale.
Manufacturing involves making products from raw
materials by various processes, machinery, and operations.
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Raw Materials
Clay
Manufacturing
Processes
Finished
Products
ceramic cutting
tool or electrical
insulator
Week 1 Manufacturing Processes
5. Manufacturing Activities
Manufacturing activities include:
Product design
Purchasing
Manufacturing
Production control
Packaging & Warehouse
Shipping
Customer service
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6. Manufacturing Activities
For manufacturing activities need to ensure:
Product must fully meet design requirements & product
specifications.
Product must be manufactured by the most economical methods.
Quality must be built into the product from design to assembly.
Quality must be appropriate to the product’s use.
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7. Design Process & Concurrent Engineering
The design process requires a clear understanding
of the functions & performance expected of that
product.
Concurrent engineering is a more modern approach
& all disciplines are involved in the early design
stages.
The key to success of concurrent engineering is
communication between & within the disciplines.
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8. Sequential Process
Design & Manufacturing activities have
traditionally taken place sequentially.
Designers preparing detailed part
drawings material department choose
material manufacturing department
produce warehouse.
It’s a wasteful of resources & time.
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9. Concurrent Process
Concurrent engineering is a
systematic approach.
To integrating the design &
manufacture.
Optimizing all elements
involved in the life cycle of
the product.
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10. Concurrent Engineering
Life cycle all aspects of the product
(design to disposal and recycling) are
considered simultaneously.
The basic goals are to
minimize product design
and engineering changes,
the time and costs.
The concurrent engineering environment
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12. Computer-Aided Design
Computer-aided design (CAD) conceptualize objects
more easily without expensive prototypes.
Computer-aided manufacturing (CAM) utilizing &
processing the information on materials stored in a database.
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13. The Role of Prototypes
Produce prototype at low cost.
Less time.
Virtual Prototype
3D solid models used to evaluate appearance, customer
appeal, fit and clearance for assembled parts, mass
properties, kinematics, & other characteristics of the
design.
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14. Rapid Prototyping systems
Stereolithography Apparatus (SLA)
SLA uses laser-hardened resins to form models
A laser hardens each layer in the shape of the cross section of a part.
Holes and pockets in the model are formed by uncured resin.
SLA Rapid prototyping system
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15. Selective Laser Sintering (SLS)
SLS uses laser to fuse powdered metals, plastics or ceramics
The fused layers is covered with additional powder & the next layer
fused to it.
To form a hole, the powdered material is simply not fused that area.
SLS Rapid prototyping system
Elastomeric material used for
prototyping athletic equipment
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17. 3D Printing
3D printing “print” layers of molten
thermoplastic material.
These low-cost machines were designed to
enable the use of prototypes early & often in the
design cycle.
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Tiny planetary gears set 3D-printed
3D Printing System
18. Design for Manufacture
Design for manufacture (DFM) integrate:
Materials,
Manufacturing methods,
Process planning,
Assembly,
Testing, and
Quality assurance
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19. Design for Assembly
DFA is an important part of manufacturing.
Assembly operations can contribute
significantly to product cost.
Design for Manufacturing & Assembly
Combined approach of
Design for Manufacture
Design for Assembly
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21. Computer-Integrated Manufacturing
CIM is capable for:
Responsiveness to rapid changes.
Better use of materials, machinery, & reduced inventory.
Better control & management of production &
manufacturing operations.
High quality products at low cost.
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22. Review Questions
1. What are the 3 important phases in the
manufacturing process?
2. Define Concurrent Engineering?
3. Explain the benefits of rapid prototyping?
4. Why computer-integrated manufacturing is
particularly effective?
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