This document discusses design for disassembly (DFD), which involves designing products to be easily taken apart at the end of their life so components can be reused or recycled. DFD is part of design for the environment and sustainable product design. It reduces production costs and increases technical efficiency and flexibility. Active disassembly uses smart materials like shape memory polymers and alloys to allow components to self-disassemble through stimuli like heat. Principles for DFD include selecting recyclable materials, using standardized fasteners, and avoiding permanent fixes. DFD benefits the environment by facilitating recycling and reuse.

2. DESIGN FOR
DISASSEMBLY
PRESENTED BY:
Sumra Noor
Adnan Shabbir
Fatimah Nawaz

3. INTRODUCTION
“Design for Disassembly (DFD) is the
process of designing products so that
they can be easily, cost-effectively
and rapidly taken apart at the end of
the product's life so that components
can be reused and/or recycled.”

5. • A framework of actions
• It involves designing a product to be
disassembled for easier maintenance,
repair, recovery and reuse of
components/materials.
• A part of Design for the Environment
(DFE) and sustainable product design.

7. (Steven M. Greer)
“Alas, our technology has marched
ahead of our spiritual and social
evolution, making us, frankly, a
dangerous people.”

8. WHY DESIGN FOR
DISASSEMBLY

9. • Reduce production costs.
• Greater technical efficiency

10. • Greater flexibility during product
development
• Reducing the scale of resources

11. Design for ACTIVE DISASSEMBLY

12. • Involves the disassembly of
components using an all-encompassing
stimulus, rather than a fastener,
specific tool or machine.
• Offers the cleanest, non-destructive,
quick & efficient component
separation

13. It involves:
• use of smart materials
• account for both the product
architecture and fastener selection

14. smart materials
• Self-disassembly at specific
temperatures
• Shape Memory Polymer and Shape Memory
Alloys

15. smart materials
• Screws, bolts and rivets
• From deformed to original shape

16. Shape memory polymer
• Polyurethane
• Polyethylene tetraphthalate (PET)

17. Shape memory alloy
• Nickel-titanium
• Copper-aluminum-nickel

18. principles for Design for
Disassembly

19. • The selection and use of materials
• The design of components and product
architecture
• The selection and use of
fasteners

20. Points to keep in mind for active
disassembly

21. • Choose recycling-compatible materials
• Avoid using materials which require
separating before recycling
• Use as few components and same
component types as possible
• Integrate components (which relate to
the same function) where possible.

22. • Use of standardized fasteners
• Make components easily separable.
• Avoid permanent fixing (use of
adhesives, co-molding)
• Avoid paint

23. • Avoid toxic or harmful materials and
chemicals
• Identify material types
• Provide Guidance and Accessibility

24. WHAT DO SOME COMPANIES DO WITH THE
PRODUCTS AT THE END OF THEIR LIFE

26. Along with having so many benefits,
The Design For Disassembly adds to
the green environment and protects it
by allowing the products to be
Environment Friendly.