The Virtual Foundry The Virtual Foundry Filamet Titanium 64-5 - 1.75mm (0.25kg)
If you can print plastic, you can make pure metal parts. The Virtual Foundry's Filamet enables users to print bound-metal filament on common 3D printers and debind & sinter printed parts in common kiln equipment. Once parts have been fired in a sintering furnace, the result is a 100% metal 3D printed part.
Titanium 64-5 Filamet contains 78.0% - 82.0% metal and has a density of 2.46g/cc.
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THE VIRTUAL FOUNDRY TITANIUM 64-5 FILAMET
3D PRINT METAL PARTS AT HOME, IN THE LAB, OR IN THE CLASSROOM
The Virtual Foundry's Filamet Metal, Glass, and Ceramic 3D printing filaments are designed to be printed on any FFF/FDM 3D printer that is compatible with 3rd party materials. The manufacturer recommends that customers use 3D printers equipped with dual gear, direct-drive extruders with all-metal hot ends for the most consistent results. Hardened or stainless steel nozzles at 0.6mm or 0.8mm and a Filawarmer to assist with making the filament more pliable and flexible when printing are also highly recommended.
NOTE: Sintering Trials have not been conducted on Titanium 64-5 Filamet
Here are some key features of printing with The Virtual Foundry Filamet:
- Low barrier to entry
- Low energy consumption
- Low hardware costs
- Ease of use
- Mature technology (FFF)
- Hardware flexibility – users have full control over their 3D printer configuration
- Safer solution – no chemicals in printing, no chemicals in debinding
Printing Pure Metal With Filamet
The Virtual Foundry has been a pioneer in the development of metal filament for use with desktop 3D Printers since 2014. Filamet Titanium 64-5 is comprised of 78.0% - 82.0% metal and PLA, its PLA base makes this material extremely simple to print and highly compatible with most 3D printers, enabling users to create metal parts without the need to buy expensive industrial 3D printers.
- Slicer Set-up: Basic PLA profile
- Extruder Temperature: 205 - 235°C
- Build Plate Temperature: 40-50°C
- Build Plate Surface: Glass, PEI, Fiberglass, Spring Steel - Treated with Magigoo or Glue (Glass), Painters Tape (PEI/Fiber Glass)
- Nozzle Size: 0.6mm Stainless Steel or Harder
Achieve Consistent, Quality Results When Printing With Filamet
The FilaWarmer was designed to assist you with printing with Virtual Foundry Filamet. As Filamet passes through the warmer, the memory of the Filamet is reset, resulting in a filament that is more pliable and flexible. Other tips to assist you with printing this material include:
- Utilizing a 0.6mm Hardened Steel Nozzle for Titanium 64-5 Filamet
- Starting with Nozzle Temps of 210°C and tuning in the range of 190-230°C
- Setting the flow rate to 135% to start.
HOW MUCH DO SINTERED PARTS SHRINK?
Users have some control over how much their sintered parts shrink. You can shrink the parts by 7% and get about 80-85% density. If you add enough heat and time for the parts to shrink by 20%, your density will be in the low 90s. Some general rules of thumb to consider:
- The less a part is shrunk using heat and time, the less its shape will change.
- The X and Y axes will shrink fairly uniformly. The Z-axis however will have slightly more shrink due to gravity.
- Circles and holes keep their shape well.
- The final thing to remember when starting out is 5% isostatic shrink for Copper and Bronze, 10% isostatic shrink for the steels should be your desired target range.
WHAT DO I NEED TO DEBIND AND SINTER 3D PRINTED PARTS?
- Heat resistant gloves
- Al₂O₃ and Sintering Carbon for Bronze and Copper Filamet
- Steel Blend and Sintering Carbon for Stainless Steel 316L, Stainless Steel 17-4 and Inconel® 718-34 Filamet
Note: Filamet debinds with only heat so there is no extra debinding equipment needed.
Sintering can be done in any kiln that can reach and hold the sintering temperature.
WHAT IS THE SINTERING PROCESS LIKE?
Two things need to happen to be successful while sintering:
The printed part shape will need to be supported, and oxygen will need to be prevented from reaching the part.
Supporting the shape of your printed part is solved by using a refractory ballast: Al2O3 (for copper and bronze) or Steel Blend (for the steels).
The oxygen exposure part is solved with Sintering Carbon.
If you have the oxygen problem solved with shielding gas and/or vacuum, you can ignore any reference to Sintering Carbon in the instructions.
You will still need to manage part shape support, however, the crucible and Al2O3 or Steel Blend will still be needed.
Simply bury your part in the refractory ballast in a crucible. Then, add Sintering Carbon to the top. Place the crucible in your kiln, set the time and temperature program, press go and you’re all set.
INSTRUCTIONS FOR DEBINDING AND SINTERING TITANIUM 64-5 FILAMET
Titanium is reactive (explodes) in the presence of heat and oxygen. This material will pull oxygen out of a standard kiln's insulating brick. Commercially, Ti is sintered in an all-metal kiln with high-purity argon.
For more information please check out this video
SANDING AND POLISHING YOUR GREEN PRINT
Manipulating prints: When exposed to heat, Virtual Foundry metal filament becomes clay-like. It can be carved, and re-sculpted, pieces can be added and seams smoothed. Soldering irons or wood-burning tools work well for this. For best results, use a tip that won’t be used for soldering/wood-burning and set the temperature to 200-235°C (392-455°F).
How to avoid melting when sanding metal filament: Important! Constant movement to different areas of the part is necessary when sanding to avoid unintentional melting. Experimenting is worthwhile.
Needle file: To make print lines vanish, sand the surface even. The loose particles from sanding are smashed into the print line gaps with the heat from the friction, fixing them in place. This step is complete once the entire print’s surface is smooth and even.
Sandpaper or 3M Radial Disc: Start with 120 grit sandpaper or 80 grit 3M Radial Disc, and go over every part of the print. The matte surface will become shiny as finer grits are used. Complete the entire surface of the print before moving to the next grit. The Virtual Foundry recommends using 4 grits with 3M and 6 or 7 grits with sandpaper. A nice shine can be achieved with less, but the mirror shine comes closer to the 7, ending around 3000 grit. After sanding, rub the print down with some flannel or a sunshine cloth to clean off loose particles. A mirror shine should be evident at this phase, even before the last step.
Sewn Buffing Wheel and Zam: Place sewn buff on a rotary tool, then liberally apply zam to the buff and to your print. The print will melt if it gets too hot, so it is critical to keep the buffer moving and continue to apply zam liberally. It may be useful to practice this step on a simple print or a “failed print.”
If you will be sintering your print: Polishing before sintering is not necessary. Post-sinter, the print will behave as the metal it’s made of – file it, weld it, polish it.
- 1.75mm and 2.85mm +/- 0.05mm in diameter
- Extruder: 205 - 235°C
- Build Plate Temp: 40 – 50°C
- Nozzle Recommendation: 0.8mm Stainless Steel or Harder
- Metal Composition: 85%