1 intro dfma

8/14/2019 1 Intro Dfma

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DFMADFMA(PRODUCT DESIGN AND(PRODUCT DESIGN AND

DEVELOPMENT)DEVELOPMENT)Engr. Wan Sharuzi Hj Wan Harun

Industrial Engineering, FKM


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Introduction to BMF4723

2 HOUR2 HOUR

LECTURELECTURE

2 HOUR LAB2 HOUR LAB

CO1:CO1: Understand the basic

principles ofUnderstand the basic principles of

design fordesign for manufacture and designmanufacture and designfor assembly.for assembly.

CO2:CO2: Explain and differentiate theExplain and differentiate the

available DFMAavailable DFMA techniques andtechniques and

guidelines.guidelines.

CO3:CO3: Analyze and design parts to improveAnalyze and design parts to improve

assemblyassembly and manufacturing method.and manufacturing method.

CO4:CO4: Obtain competitive experience inObtain competitive experience inreal worldreal world work through classwork through class

projects.projects.

CO5:CO5: Use and apply the DFMA software inUse and apply the DFMA software in

the designthe design for manufacture andfor manufacture and


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Assessment Tools

20%20%

20%20%

25%25%

35%35%

100

%

100

%


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Definitions (1/3)

Product: A term used to describe allgoods, services, and knowledge soldor shared.


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Definitions (2/3)

A Product Development Process is theentire set of activities required to bring anew product concept to a state of market

readiness. PD is the organization and management of

people and the information they developin the evolution of a product.


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Definitions (3/3)

A Design Process is the set oftechnical activities within a PDprocess that work to meet marketing

and business case vision.


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General Phases of PD


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The Golden Triangle

Effectiveness of the design process is measured by:

2. Product cost

3. Product quality

4. Time to market (TTM)


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The Design Paradox

The more you learn the less freedom youhave to use what you know.

CE relieves this difficulty.


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Design Process Evolution

Craftsmanship one person coulddesign and manufacture an entireproduct

By the middle of the 20th century:over-the-wall approach.

From the late 1980s: concurrentengineering approach (CE).


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Approaches to ProductDevelopment

Two fundamental approaches toproduct development:

Sequential /Over-the-wall approach Concurrent/integrated approach.


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Traditional way of developing products. Divided into a number of distinctphases.

Sequential approach


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The Over-The-Wall Design

Method


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Advantages of sequential approach

Easy to manage and control, since theobjective of each phase is

predetermined.The process is scrutinized after each

phase is finished.

Reduces uncertainty to a minimumbefore each phase is begun.


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Disadvantage of sequential approach

Being ill-equipped for advancing suchdevelopment objectives as speed and

flexibility.


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Advantage of integrated approach

Total development cycle is reducedwhile at the same time flexibility

increases.


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Various functions overlap.Total development cycle is reducedand flexibility is increased.

Concurrent/integrated

approach


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Comparison between traditional andsimultaneous developmentprocesses.


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Concurrent Engineering (CE) CE emphasizes the integration of cross-functional TEAMS to develop the product.

The use of teams, including all thestakeholders, eliminates many of theproblems with the over-the-wall method.


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Controllable Variables in CE


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The CE Design Team

A team may be defined as two or morepersons engaged in a common goal, whoare dependent on one another for results,

and who have joint accountability for theoutcomes.

The PRIDE principle should be followed inany product development project

PURPOPURPO

SESERESPECRESPEC

TT INDIVIDUAINDIVIDUA

LSLS

DISCUSSIODISCUSSIO

NSNS

EXCELLENEXCELLEN

CECE


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Members of Design Teams

Product design engineer Marketing manager Manufacturing engineer Drafter

Technician Materials specialist Quality control/quality assurance specialist Analyst

Industrial designer Assembly manager Vendors or suppliers representative


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The concept of Product Life Cycle


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Summary (1/2)

Product design is a part of theproduct development process.

PD must be centered on theCUSTOMER. The Japanese say: Listento the VOC!

Success at PD is measured by Cost,Quality, and TTM.


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Summary (2/2)

Concurrent Engineering = earlyinvolvement of stakeholders

CE suggests an integrated productand process design (IPPD)

Early phases of design are the mostcritical to the design success.


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Thank you!!!

1 intro dfma

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