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