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

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.”

• 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.

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

WHY DESIGN FOR
DISASSEMBLY

• Reduce production costs.
• Greater technical efficiency

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

Design for ACTIVE DISASSEMBLY

• 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

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

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

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

Shape memory polymer
• Polyurethane
• Polyethylene tetraphthalate (PET)

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

principles for Design for
Disassembly

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

Points to keep in mind for active
disassembly

• 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.

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

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

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

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.