MIG Casting: Difference between revisions
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= | =Introduction= | ||
Concept: the idea here is to peform casting - without the bulk melt. The molten metal comes from a MIG welder - which is a ready source of molten metal in the absence of a melting or induction furnace. The MIG wire melt is simply used as the source of molten metal. | |||
*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]] | ||
Steps: | Steps: | ||
#3D print a form | #3D print a form | ||
#Make a cast form with Plaster of Paris | #Make a cast form with Plaster of Paris or a higher temperature formula for steel. | ||
#MIG weld into it | #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= | =Working Document= | ||
| Line 12: | Line 19: | ||
[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)= | ||
| Line 24: | Line 34: | ||
*[https://wiki.opensourceecology.org/wiki/3d_Printing_Techniques#3D_Print_to_Metal_Cast: Page on OSE with info] | *[https://wiki.opensourceecology.org/wiki/3d_Printing_Techniques#3D_Print_to_Metal_Cast: Page on OSE with info] | ||
= | =Links= | ||
* | *[[Welder Deposition Rate]] | ||
Latest revision as of 19:19, 12 July 2020
Introduction
Concept: the idea here is to peform casting - without the bulk melt. The molten metal comes from a MIG welder - which is a ready source of molten metal in the absence of a melting or induction furnace. The MIG wire melt is simply used as the source of molten metal.
- 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