Design for-disassembly
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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.
Design for-disassembly
- 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.”
- 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.