MIG Casting: Difference between revisions
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= | =Introduction= | ||
*Steel parts almost directly from 3D prints | *Steel parts almost directly from 3D prints | ||
*Based on [[3D Printing Investment Casting]] | *Based on [[3D Printing Investment Casting]] | ||
Revision as of 03:14, 15 October 2019
Introduction
- Steel parts almost directly from 3D prints
- Based on 3D Printing Investment Casting
Steps:
- 3D print a form
- Make a cast form with Plaster of Paris or a higher temperature formula for steel.
- MIG weld into it using aluminum or steel wire.
Low Temperature
- For aluminum, ZA, brass - plaster of paris will work
- For steel, higher temperature investment casting slurry needs to be used. This appears to be more advanced, and slurries may not be available transparently. (Refractory Cement? I have seen this being used for small scale forges, it can be found at hardware stores.
Working Document
Experiment
- Get flux core aluminum MIG wire (gasless) - $11 - [1]
- Make a 3D print with hole for electrode
- Make a mold via plaster of paris. See Plaster Mold Casting
- Fill with MIG welder
Comparison to Powder (Sintering or Melting Methods)
- Simpler lacking lasers or electron beams
- More sealed ie not porous