Design for Manufacturability

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Design for Manufacturability
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Design for Manufacturability

• Read about Design for Manufacturability. The
  following are good referenced but not the only
  ones
• http//www.npd-solutions.com/dfmguidelines.html
• In particular points 1, 2, 3, 5, 7, 9, 10, 12
• http//www.design4manufacturability.com/DFM_articl
  e.htm
• In particular The Importance of Early Concept
  Product Architecture Decisions

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The Old Days

• Before DFM, the motto was "I designed it you
  build it!
• Designs were then thrown over the wall leaving
  manufacturing people with the dilemma of either
  objecting (but its to late to change the design!)
  or struggling to launch a product that was not
  designed for manufacturability.

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Design for Manufacturability

• Design for manufacturability is the process of
  proactively designing products to optimize all
  the manufacturing functions
• fabrication,
• assembly,
• test,
• procurement,
• shipping,
• delivery,
• service,
• and repair, and

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Design for Manufacturability

• Assures
• the best cost,
• quality,
• reliability,
• regulatory compliance,
• safety,
• time-to-market,
• and customer satisfaction.

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Design for Manufacturability

• Companies that have applied DFM have realized
  substantial benefits.
• Costs and time-to-market are often cut in half
  with significant improvements in
• product line breadth,
• delivery,
• customer acceptance,
• in general, competitive posture,
• quality,
• Reliability and,
• serviceability.

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You should Consider

• Simplify the design and reduce the number of
  parts
• Standardize and use common parts and materials
• Design for ease of fabrication (Mechanical Parts)
• Design for ease of assembly (Mechanical and
  Electronics)
• Avoid unnecessarily tight tolerances that are
  beyond the natural capability of the
  manufacturing processes
• Mistake-proof product design and assembly
  (poka-yoke) so that the assembly process is
  unambiguous
• Minimize flexible parts and interconnections

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You should Consider

• Design for efficient joining and fastening (Easy
  assembly and disassembly)
• Design modular products
• Design for automated production
• Design printed circuit boards for assembly
• Design for testability

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Design for Manufacturability

• Demonstrate your awareness on the importance of
  making the right choices in the early stages in
  the project

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Design for Manufacturability

• Develop a one to two page, section for
  manufacturability and indicate in particular the
  principles you will emphasize in your project