this is ppt only for educational purpose

1. DESIGN REVIEW OF ANY
PRODUCT/SYSTEM FOR
MANUFACTURING, ASSEMBLY & COST
CONSIDERATIONS
(Tweel Tyre)
MSD Assignment by,
JADHAV SHRIKANT DINKAR
B.E- MECHANICAL
ROLL NO. 18
DIV- B

2. DFMA & C
• Design for Manufacturing (DFM) :
Entails making parts easier to produce new raw stock
• Minimize complexity of manufacturing.
• Use common axes and common processes.
• Design for Assembly (DFA) :
entails making attachment methods simple
• Minimize number and complexity of assembly operations.
• Individual parts may be more complex in design.
•Cost :
Concern with reducing overall part production cost.
Concern with reducing product assembly cost

3. DFMA & C GIDELINES
• Reduce the part count.
• Use modular designs.
• Optimize part handling.
• Assemble in the open.
• Do not fight gravity.
• Design for part identity.
• Eliminates fasteners.
• Design parts for simple assembly.
• Reduce simplify & optimize manufacturing process.

4. Symmetry
EML4550 2007

5. Self-locating parts

6. Self-locating parts
EML4550 2007

7. Fastening
• Consider the least expensive fastening
method that meets the requirements
EML4550 2007

8. APPLICATION : TWEEL TYRE
Invented by Michelin US tyres and researching on it.

9. MANUFACTURING
Stiff hub :
• It is made by aluminium and using casting process
Spokes :
• It is made by Polyurathane material which is always retains its
form and its flexible.
• It is manufactured by molding method.
Sheer Band:
• Made by polymer & manufactured by molding method.
ASSEMBLY
• Tweel is a combination of wheel and tyre.
• It’s a single unit so wheel assembled during manufacturing.
COST
• overall tyre cost reduced because of no machining and no
assembly required.

10. ADVANTAGES
• No tube and tyres required.
• No puncture.
• Tyre life is more.
• Assembly time reduces.
• One time investment .
• Tyre run on any type of road.
• It does not need air.
• Three times long life.
• The tread can be replaced without having to replace
the entire unit, so there is less waste of material.

11. APPLICATIONS
• Golf cart.
• Bulldozer.
• Military vehicles.

12. THANK YOU