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Application driven material manufacturing and tailoring possibilities of the new material
Short recap 2010
 
 
 
Natural fibers
Fibers <ul><li>Layered structures </li></ul><ul><li>Natural glue polymers </li></ul><ul><li>Length ~0,5 – 2 mm </li></ul><...
Natural fiber composites + Cellulose  Plastics + Water  Oil
Elastopoli natural fiber composites <ul><li>Patented (pending) Wet Phase manufacturing process  </li></ul><ul><li>Key is t...
How is it done?
 
NFC <ul><li>NFC is  ”mouldable wood”  with at least the same amount  of wood fiber as wood itself </li></ul>WASHING REPLAC...
Material manufacturing <ul><li>Wood fiber amount same or more than with normal tone wood </li></ul><ul><li>Mouldble </li><...
State of the art
Imitating tone woods <ul><li>How far do we want to take imitation??? </li></ul><ul><li>Appearance </li></ul><ul><li>Sound ...
Matching  <ul><li>  density </li></ul><ul><li>Alder  ~0.5 </li></ul><ul><li>Ash ~0.7 </li></ul><ul><li>Rosewood ~0.9 </li>...
Coloring <ul><li>Color range from light brownish to pitch black (ebony) </li></ul><ul><li>Wood grains -look needs two colo...
Density <ul><li>Realistic at the moment 1.2 – 1.5 </li></ul><ul><li>Creating porosity may weaken the product </li></ul><ul...
Structural possibilities Handmade Classical Guitars by Fritz Mueller www.classicalguitars.ca
Structural possibilities <ul><li>The material allows more complex design without exceeding budget or manufacturing costs <...
Example: Honeycomb <ul><li>Significantly more power and volume </li></ul><ul><li>Excellent projection  </li></ul><ul><li>E...
<ul><li>NFC should not be regarded as wood but a new material family that has acoustic properties that compare to wood </l...
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Application driven material manufacturing - Markku Nikkilä

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Application driven material manufacturing - Markku Nikkilä

  1. 1. Application driven material manufacturing and tailoring possibilities of the new material
  2. 2. Short recap 2010
  3. 6. Natural fibers
  4. 7. Fibers <ul><li>Layered structures </li></ul><ul><li>Natural glue polymers </li></ul><ul><li>Length ~0,5 – 2 mm </li></ul><ul><li>Fibrillous surfaces that entangle and agglomerate easily </li></ul><ul><li>Hydrophilic </li></ul>
  5. 8. Natural fiber composites + Cellulose Plastics + Water Oil
  6. 9. Elastopoli natural fiber composites <ul><li>Patented (pending) Wet Phase manufacturing process </li></ul><ul><li>Key is to build wet phase compatibility between plastics and cellulose </li></ul><ul><li>Prevent OH-bonding and hornification and later reagglomeration in injection molding </li></ul><ul><li>Result: 40% better mechanical properties in Flaxwood guitars </li></ul><ul><li>Better and more vintage sound </li></ul>
  7. 10. How is it done?
  8. 12. NFC <ul><li>NFC is ”mouldable wood” with at least the same amount of wood fiber as wood itself </li></ul>WASHING REPLACEMENT WOOD
  9. 13. Material manufacturing <ul><li>Wood fiber amount same or more than with normal tone wood </li></ul><ul><li>Mouldble </li></ul><ul><li>Opens a new production process for instrument building </li></ul>
  10. 14. State of the art
  11. 15. Imitating tone woods <ul><li>How far do we want to take imitation??? </li></ul><ul><li>Appearance </li></ul><ul><li>Sound </li></ul><ul><li>Flaws?? </li></ul><ul><li>Additional qualities </li></ul>
  12. 16. Matching <ul><li> density </li></ul><ul><li>Alder ~0.5 </li></ul><ul><li>Ash ~0.7 </li></ul><ul><li>Rosewood ~0.9 </li></ul><ul><li>Ebony ~1.2 </li></ul><ul><li>Blackwood ~1.4 </li></ul>Color
  13. 17. Coloring <ul><li>Color range from light brownish to pitch black (ebony) </li></ul><ul><li>Wood grains -look needs two colors and right production technology </li></ul><ul><li>Random multi coloring easier </li></ul><ul><li>Effect of coloring to tonal qualities need to tested case by case </li></ul>
  14. 18. Density <ul><li>Realistic at the moment 1.2 – 1.5 </li></ul><ul><li>Creating porosity may weaken the product </li></ul><ul><li>Since the material is heavier – other means of making the instrument lighter are available </li></ul>
  15. 19. Structural possibilities Handmade Classical Guitars by Fritz Mueller www.classicalguitars.ca
  16. 20. Structural possibilities <ul><li>The material allows more complex design without exceeding budget or manufacturing costs </li></ul><ul><li>Ribs, cavities even honeycomb structures can save weight, give more stiffness and create new tonal possibilities </li></ul><ul><li>Everyday ” tricks of the trade ” in injection molding world – tested & proven </li></ul>
  17. 21. Example: Honeycomb <ul><li>Significantly more power and volume </li></ul><ul><li>Excellent projection </li></ul><ul><li>Exceptional balance and note-to-note evenness </li></ul><ul><li>Excellent clarity and separation of notes </li></ul><ul><li>Excellent sustain </li></ul><ul><li>An extremely responsive instrument that reacts to the lightest touch, yet can also be pushed hard without breaking up the sound; </li></ul><ul><li>A rich, meaningful guitar sound with powerful, firm basses and brilliant trebles. </li></ul>Handmade Classical Guitars by Fritz Mueller www.classicalguitars.ca
  18. 22. <ul><li>NFC should not be regarded as wood but a new material family that has acoustic properties that compare to wood </li></ul><ul><li>Designing instrument from NCF gives instrument manufacturers new process and tonal possibilities that have not existed before </li></ul><ul><li>NFC works well with traditional tone woods and is a new possibility in luthiers toolbox, not just a replacement </li></ul>

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