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Design For Disassembly (DfD)

Design For Disassembly (DfD). By Tim Thorn. The Agenda. What is Design for Disassembly (DfD)? Brainstorming exercise Explanation How DfD works? An Example of DfD A brief exercise Summary Readings. Design For Disassembly.

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Design For Disassembly (DfD)

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  1. Design For Disassembly (DfD) By Tim Thorn

  2. The Agenda • What is Design for Disassembly (DfD)? • Brainstorming exercise • Explanation • How DfD works? • An Example of DfD • A brief exercise • Summary • Readings

  3. Design For Disassembly • Definition: “The use of assembly methods and configurations that allow for cost-effective separation and recovery of reusable components and materials.”

  4. Brainstorming Exercise • How can Design for disassembly be applied to our organization to increase environmental awareness and cut costs?

  5. Further Information about DfD

  6. Reasons for Disassembly • Enable maintenance • Enhance serviceability • End-of-life (EOL) objectives such as product reuse, remanufacture, and recycling

  7. End-Of-Life Objectives • Most important reason to disassemble • Component reuse • Remanufacture • Recycling

  8. Types of Disassembly • Destructive disassembly • Reverse Disassembly • Two types of reverse disassembly: • Total • Selective

  9. Cost-Savings with Disassembly • Better selection of materials • More specific identification of component materials • Assembly methods that provide for more efficient and possibly automated disassembly

  10. Benefits of DfD • Components which are of good quality can be refurbished or reused. • Metallic parts can be separated easily into categories which increases their recycling value. • Disassembled plastic parts can be easily removed and recycled. • Parts made from other material such as glass or hazardous material can easily be separated and reprocessed.

  11. So how does Disassembly work? • Product is reacquired • Product taken to special DfD facilities • Each component of the product is taken off • The components are sorted • Then reused, recycled and refurbished

  12. How can products be designed more effectively to aid disassembly? • Provide ready access to parts, fasteners, etc. to support disassembly. • Design modular products to enable modules to be disassembled for service or re-use. • Minimize weight of individual parts and modules Crow Kenneth. http://www.npd-solutions.com/dfe.html Crow Kenneth. http://www.npd-solutions.com/dfe.html

  13. Effective Design (Cont.) • Use joining and fastening techniques to facilitate disassembly (e.g., fasteners instead of adhesives) • Minimize fragile parts and leads to enable re-use and re-assembly. • Use connectors instead of hard-wired connections. • Design to enable use of common hand tools for disassembly. Crow Kenneth. http://www.npd-solutions.com/dfe.html

  14. What industries use DfD? • Construction • Technology • Furniture Manufacturing • Electronic Manufacturing • Automobile Manufacturing

  15. Real world application • Cell Phone Manufactures • Initially too costly to disassemble • Use of DfD • Phones will soon take seconds to disassemble

  16. Exercise • What is Desgin for Disassembly? • Why do we use DfD? • What can be designed more effectively to aid in disassembly? • What industries use DfD?

  17. Summary By designing products that are easy to disassemble we can conserve natural resources, and if applied correctly can cut costs.

  18. Readings List • Billatos, S.B. 1997, Green Technology and Design for the Enviroment. • Desai, Anoop. Mital,Anil Journal of Manufacturing Technology Management; 2005, Vol. 16 Issue 7, p712-732, 21p • Dowie-Bhamra, Tracy. University of Manchester http://www.co-design.co.uk/design.htm • Jana, Reena. Business Week Online Can Design Change the World? 10/26/2006 • Crow, Kenneth. http://www.npd-solutions.com/dfe.html

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