User:Alexdobrianski

Alex Dobrianski. [email protected]

Alex Dobrianski

Proposed development main page - TitaniumAlloy Printing with easy to mix Titanium alloys on Mendel printer

Samples metal parts from paste:

samples of a titanium alloys

Titanium 90%, Silver 10% = density 4.7

Titanium 75%, Copper 25% = density 5.1

Copper 75%, Tin 25% (bronze) = density 7.8 (actually it is not titanium - just bronze, but works same way):

Extruder: can be used ParametricSyringeExtruder - but it will be beneficiary to design extruder printable with the same alloys

Solidification: vacuum chamber, heat - from 100C - 820C step +5C/min, 25min under 820C, then holding vacuum, drop temperature to 350C, and release vacuum valve.

Paste mixed with metal powder in proportion regular for powder metallurgy (any mix suitable), then after mix add PVA with the water. Viscosity is high for sure and require pressure to extrude, but after solidification (air/heating), model is solid to be placed into the vacuum oven. Metals like Aluminum will be require carbon powder to add. Starсh - working but solidification is not good. Mineral oil - not working. Best results are under PVA.

blog on Blog on Google Lunar XPRIZE

Project home page adobri web site