For my research purpose I need a Composite 3D printing filament.
Please share the cost details to manufacture a 1Kg filament using a twin screw extruder.
And share the combination of filament already fabricated using a twin screw extruder.
And Share the detail of twin screw extruder availability in India. My location is Vellore, Tamilnadu, India. Please share the nearest availability of twin screw extruder.
Dear Nekin,
Nice question, I believe that it will be difficult to find a well-supported answer!
Hereinafter there are only few considerations from my part.
a) The price of 3D printing composite filaments is determined by a multitude of factors (nature of polymer matrix, fillers, reinforcements, additives, capacity of production, and so on).
b) Traditionally, the twin-screw extruders (TSE ) can be successfully used to produce various composites by melt-compounding, of good quality and with high throughput, which can be proposed for 3D applications.
c) Unfortunately, TSE are less adapted for the direct production of 3D filaments of high quality, even that there are few suppliers that can propose this kind of equipment for one step production, designed mostly for academic research/low-capacity production (e.g., Lestritz, ThermoFischer, etc.). Maybe other RG collegues can help more with information...
d)Please take a look :
Thermo Scientific Process 11 Lab-scale 3D Filament Production System
https://assets.thermofisher.com/TFS-Assets/MSD/Application-Notes/AN53134-melt-pump-produce-filaments-additive%20manufacturing-3d-printing.pdf
e) For the production in big quantities of 3D filaments it’s generally agreed that the production in two steps (1. fabrication of composites with TSE; 2. the extrusion of 3D filaments, e;g., using a single screw extruder) has a large number of advantages. I will refrain from more comments...
f) Function of requirements/ your application (type of composite), I suggest you use as starting point the price of 3D filaments/composites that look similar/satisfy your needs, and which are already commercialized in the market!
Success in your R&D project and best regards,
Marius
Twinscree is compouding machine. The performance depends on the loading and there is a high probability of pulsation of the melt pressure and as a result of the material yield. Therefore, a clear regulation of loading and operating mode is needed.
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