MIG Casting: Difference between revisions
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[https://docs.google.com/presentation/d/1FrxEERS58ZXyqdefGm0T3QD8DbOBpReYwscTEkGHC0k/edit#slide=id.g45ed589c64_0_0 edit] | [https://docs.google.com/presentation/d/1FrxEERS58ZXyqdefGm0T3QD8DbOBpReYwscTEkGHC0k/edit#slide=id.g45ed589c64_0_0 edit] | ||
= | =Experiment= | ||
* | *Get flux core aluminum MIG wire (gasless) - $11 - [https://www.ebay.com/i/192839464245?chn=ps] | ||
*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)= | =Comparison to Powder (Sintering or Melting Methods)= | ||
Revision as of 20:37, 25 March 2019
Basics
- 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 use a "greensand" mold/cast? )
- MIG weld into it
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