Category:TIG Welders and Category:MIG Welders: Difference between pages

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[[Category:Tools]][[Category:Welders]][[Category:Metal Shop]]
[[Category:Tools]][[Category:Welders]]
 


{{Warning|text='''Extra precaution required for welders.''' Training / Tool Testing is essential. See [https://www.dropbox.com/scl/fi/vxp99od0h481geq45avrp/Welding-Safety.pdf?rlkey=gv6csj0p7o5n3c341w58v78vl&dl=0 Welding Safety] doc.}}
{{Warning|text='''Extra precaution required for welders.''' Training / Tool Testing is essential. See [https://www.dropbox.com/scl/fi/vxp99od0h481geq45avrp/Welding-Safety.pdf?rlkey=gv6csj0p7o5n3c341w58v78vl&dl=0 Welding Safety] doc.}}
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{{EyeWarning}}
{{EyeWarning}}


{{ToolBox|tool_title=TIG Welders|image=metal_shop_TIG_welder_nolabels.png|caption=TIG welder in  
{{ToolBox|tool_title=MIG Welders|image=Metal_shop_MIG_welder.png|caption=MIG welder in  
the Metal Shop (Everlast 250 EX)|location=Metal Shop|training=[https://www.artisansasylum.com/class-
the Metal Shop (Millermatic 252)|location=Metal Shop|training=[https://www.artisansasylum.com/class-
catalog Tool classes]|testing=[https://www.artisansasylum.com/tool-testing Tool  
catalog Tool classes]|testing=[https://www.artisansasylum.com/tool-testing Tool  
testing], or [[:Category:Metal Shop#Tool Testing Night|come to the shop on Tool  
testing], or [[:Category:Metal Shop#Tool Testing Night|come to the shop on Tool  
Line 14: Line 13:
tool_categories=}}
tool_categories=}}


==Use for:==
'''There are two models of MIG welders at Artisans Asylum:'''
 
[https://wiki.artisansasylum.com/wiki/Millermatic_212_MIG_Welder Millermatic 212 MIG Welder]
 
[https://wiki.artisansasylum.com/wiki/Millermatic_252_MIG_Welder Millermatic 252 MIG Welder]


* Most metals:  Steel, stainless, aluminum, titanium, etc.


'''The shop provides consumables for mild steel''' (filler wire, 2% thoriated tungsten). Users provide consumables for other metals.
'''Manuals are available in the Equipment Manuals Google Drive'''


* See corresponding manufacture manual for each welder’s stick welding capabilities.
Link to:  [https://drive.google.com/file/d/1mqu8Uny6LJnXi_gp4XcNu67JHU1eNLCQ/view?usp=drive_link Millermatic 212 Manual]


==Do Not Use for:==
Link to:  [https://drive.google.com/file/d/1DBQZicafw42AGU8NNGA45LOQiuMkUwGG/view?usp=drive_link Millermatic 252 Manual]


* Galvanized, plated, painted, oiled, rusted, or powder coated metals.
 
 
== Materials ==
 
'''Use for:'''
 
* Mild Steel '''ONLY'''
 
'''Do not use for:'''
 
* Galvanized
* Plated
* Painted
* Oiled
* Rusted
* Powder-coated
* Greasy
* Nasty
* Ugly
* Bad


== Safety Hazards ==
== Safety Hazards ==
Line 35: Line 56:
|}
|}


1.  '''UV damage to eyes.''' Welding Helmet with shade 10 protection or darker is required.  Darker for heavier applications.
1.  '''UV damage to eyes.''' Welding Helmet with shade 12 protection or darker is required.


2.  '''UV burns on exposed skin.''' The rays from the arc can cause severe radiation burn (worse than sunburn.) Cover exposed skin.
2.  '''UV burns on exposed skin.''' The rays from the arc can cause severe radiation burn (worse than sunburn.) Cover exposed skin.
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3.  '''Burns''' from flame, sparks, hot workpieces. Wear welding gloves, cotton clothing (no synthetics) and closed toe shoes.
3.  '''Burns''' from flame, sparks, hot workpieces. Wear welding gloves, cotton clothing (no synthetics) and closed toe shoes.


4.  '''Poisoning''' from breathing gases produced by welding. Use ventilation. ''Do not stick head in fumes.''  Respirator recommended.
4.  '''Poisoning''' from breathing gases produced by welding. Use ventilation. Do not stick head in fumes. Respirator recommended.


5.  Keep workplace '''clear of flammable materials''' including grease, oil, solvents, paper.
5.  Keep workplace '''clear of flammable materials''' including grease, oil, solvents, paper.


6.  '''Electrocution''' if welder is mishandled. Do not weld near puddles of water on floor or work area, especially when using AC output.
6.  '''Electrocution''' if welder is mishandled. Do not weld near puddles of water on floor or work area.
 
'''Various safety links to keep you awake at night:'''
 
[https://www.ccohs.ca/oshanswers/safety_haz/welding/fumes.html Welding Fumes]


==Operation Notes==
[https://drive.google.com/file/d/1JhZD70dLc5An9kkOP-_mw2djQo7XmOMj/view?usp=drive_link Metal Fume Fever]
 
[https://drive.google.com/file/d/18Zx1zASVo6tKrjcym8Dba0d35DM5OXW8/view?usp=drive_link Hexavalent Chromium]
 
[https://drive.google.com/file/d/1WoYK1vVHJLuaoRHqeJEC6zsi2RgVmj4I/view?usp=drive_link ANSI - General Safety in Welding and Cutting]
 
== Operation Notes ==
 
* Solvent based metal cleaning should be done with Simple Green or other low-intensity cleaners.
 
* Abrasive cleaning methods are also appropriate.
 
* '''No brake cleaner.''' Brake cleaner contains chlorinated hydrocarbons that create '''phosgene gas''' when combined with UV light.  '''Ventilation will not prevent poisoning.'''
 
'''MIG Welders Available:'''
 
* Millermatic 212 Auto Set - welds material from 22 gauge to 3/8 in (9/5mm) thick.
* Millermatic 252- welds material from 22 gauge to 1/2 in. thick.
 
The shop supplies 025, .030, and .035 inch copper coated steel filler wire.
 
* The MIG welders in the shop use a gas mixture of 75% Argon and 25% CO2. Purge lines after use.
 
* To reduce spatter build-up, lightly coat Torch Head with Nozzle Anti-Spatter Gel. (Found in welding bays.)


{| class="infobox" cellspacing="5" style="width: 22em; text-align: left; font-size: 100%; line-height: 1.5em;"
{| class="infobox" cellspacing="5" style="width: 22em; text-align: left; font-size: 100%; line-height: 1.5em;"
! colspan="2" class="infobox-image" | [[File:Metal_shop_TIG_welder_labels.png|350px|TIG welder]]
! colspan="2" class="infobox-image" | [[File:Metal_shop_MIG_welder_flip_down_chart.png|350px|MIG Flip-down chart]]
|-
|-
| colspan="2" | TIG welder in the Metal Shop
| colspan="2" | Flip-Down Chart on the Millermatic 212
|-
|-
|}
|}


* '''Solvent based metal cleaning should be done with Simple Green or other low-intensity cleaners.'''
== Set-up Procedure ==
 
1.  '''Safety First'''
 
* Turn on welding bay ventilation.
 
* Remove flammable materials and water from welding area.
 
* Protect bystanders from the arc-flash, If you can’t depend on the protective vinyl
 
flaps on the welding bays, use welding screens
 
2.  '''Attach the ground clamp to bare metal on the work table.'''
 
If workpiece is too large for the work table, clamp the workpiece.
 
3.  '''Check to see if the welder has been shut down properly.'''
 
* Is the power shut off?
 
* Is the gas shut off at the cylinder valve?
 
* Have the lines been bled (is the working pressure at zero)?
 
4.  '''Plug the machine in and turn it on.'''
 
5.  '''Turn the gas on.  If needed, adjust the pressure.'''
 
* SLOWLY crack the tank valve counterclockwise. Watch the regulator needle jump, and check that the needle has stopped moving before opening the valve (about half a turn).
 
This procedure lessens the impact of the initial jump in pressure on the regulator, reducing wear and tear.
 
* Hold the torch away from the workbench (more than 12 inches) and pull the torch trigger to start the gas cycle.
 
* Check the regulator dial to make sure the working gas pressure matches the recommendation listed on the shop tag attached to the regulator. Adjust if needed.
 
* Note: An inaccurate working pressure reading may occur if the welder has been shut down improperly by the previous user. Press the trigger on the Torch Head to lower the line pressure and reset the gauge.
 
6.  '''Set the machine's voltage and wire speed.'''
 
* Take note of the wire size (written on the spool inside the machine) and the thickness of the workpiece.
 
* Start with the settings recommended on the flip down chart located on the front of the machine. Adjust the settings further as needed.
 
7.  '''When welding, avoid tight loops or extra loops in the torch cord.'''
 
Extra looping will stress the feed mechanisms and may slow down the wire speed.
 
8.  '''Dross may build up on the gas nozzle and/or contact tip while welding.'''
 
Clean as necessary using MIG pliers. Spare torch parts, including replacement contact tips, are kept in the Metal Shop’s supply cabinet.
 
== Shut-Down Procedure ==
 
1.  '''Shut off the gas at the source.'''  Turn the cylinder valve clockwise.
 
2.  '''Bleed the lines.'''


* '''No brake cleaner.''' Brake cleaner contains chlorinated hydrocarbons that create '''phosgene gas''' when combined with UV light.  ''Ventilation will not prevent poisoning.''
* Turn the wire speed down as far as it will go.


* Abrasive cleaning methods are also appropriate.
* Pull the torch trigger and wait for the regulator gauge to read zero.


* '''TIG Welders Available:'''  
3.  '''Flip the machine's power switch to "off." '''
Miller Syncrowave 200
Lincoln Electric Square Wave TIG 175 PRO (code #10732)
Everlast Powertig 200DV
Everlast Powertig 250EX.


* The Shop supplies TIG welding consumables intended for use on mild steel. Users are responsible for providing consumables for other metals.
4. '''Turn the ventilation off if no one else is using the bays. '''


* Shop’s TIG welders use 100% Argon Gas.
5. '''Loosely coil the torch cord and store on the machine. '''


* Beware of mild shock from work table or workpiece if Ground Clamp not attached.
6.  '''Put all tools away and clean the work area. '''

Revision as of 18:07, 6 February 2024


Warning Extra precaution required for welders. Training / Tool Testing is essential. See Welding Safety doc.


Warning Safety glasses Eye protection required!



MIG Welders
MIG welder in the Metal Shop (Millermatic 252)
General Info
Make Varied
Model Varied
Serial Unknown
Specs n/a
Manual
Asylum Info
Location Metal Shop
Rubric n/a
Training [https://www.artisansasylum.com/class-

catalog Tool classes]

Testing [https://www.artisansasylum.com/tool-testing Tool

testing], or come to the shop on Tool Testing Night

Restrictions red


There are two models of MIG welders at Artisans Asylum:

Millermatic 212 MIG Welder

Millermatic 252 MIG Welder


Manuals are available in the Equipment Manuals Google Drive

Link to: Millermatic 212 Manual

Link to: Millermatic 252 Manual


Materials

Use for:

  • Mild Steel ONLY

Do not use for:

  • Galvanized
  • Plated
  • Painted
  • Oiled
  • Rusted
  • Powder-coated
  • Greasy
  • Nasty
  • Ugly
  • Bad

Safety Hazards

Helmet gloves.png

1. UV damage to eyes. Welding Helmet with shade 12 protection or darker is required.

2. UV burns on exposed skin. The rays from the arc can cause severe radiation burn (worse than sunburn.) Cover exposed skin.

3. Burns from flame, sparks, hot workpieces. Wear welding gloves, cotton clothing (no synthetics) and closed toe shoes.

4. Poisoning from breathing gases produced by welding. Use ventilation. Do not stick head in fumes. Respirator recommended.

5. Keep workplace clear of flammable materials including grease, oil, solvents, paper.

6. Electrocution if welder is mishandled. Do not weld near puddles of water on floor or work area.

Various safety links to keep you awake at night:

Welding Fumes

Metal Fume Fever

Hexavalent Chromium

ANSI - General Safety in Welding and Cutting

Operation Notes

  • Solvent based metal cleaning should be done with Simple Green or other low-intensity cleaners.
  • Abrasive cleaning methods are also appropriate.
  • No brake cleaner. Brake cleaner contains chlorinated hydrocarbons that create phosgene gas when combined with UV light. Ventilation will not prevent poisoning.

MIG Welders Available:

  • Millermatic 212 Auto Set - welds material from 22 gauge to 3/8 in (9/5mm) thick.
  • Millermatic 252- welds material from 22 gauge to 1/2 in. thick.

The shop supplies 025, .030, and .035 inch copper coated steel filler wire.

  • The MIG welders in the shop use a gas mixture of 75% Argon and 25% CO2. Purge lines after use.
  • To reduce spatter build-up, lightly coat Torch Head with Nozzle Anti-Spatter Gel. (Found in welding bays.)
MIG Flip-down chart
Flip-Down Chart on the Millermatic 212

Set-up Procedure

1. Safety First

  • Turn on welding bay ventilation.
  • Remove flammable materials and water from welding area.
  • Protect bystanders from the arc-flash, If you can’t depend on the protective vinyl

flaps on the welding bays, use welding screens

2. Attach the ground clamp to bare metal on the work table.

If workpiece is too large for the work table, clamp the workpiece.

3. Check to see if the welder has been shut down properly.

  • Is the power shut off?
  • Is the gas shut off at the cylinder valve?
  • Have the lines been bled (is the working pressure at zero)?

4. Plug the machine in and turn it on.

5. Turn the gas on. If needed, adjust the pressure.

  • SLOWLY crack the tank valve counterclockwise. Watch the regulator needle jump, and check that the needle has stopped moving before opening the valve (about half a turn).

This procedure lessens the impact of the initial jump in pressure on the regulator, reducing wear and tear.

  • Hold the torch away from the workbench (more than 12 inches) and pull the torch trigger to start the gas cycle.
  • Check the regulator dial to make sure the working gas pressure matches the recommendation listed on the shop tag attached to the regulator. Adjust if needed.
  • Note: An inaccurate working pressure reading may occur if the welder has been shut down improperly by the previous user. Press the trigger on the Torch Head to lower the line pressure and reset the gauge.

6. Set the machine's voltage and wire speed.

  • Take note of the wire size (written on the spool inside the machine) and the thickness of the workpiece.
  • Start with the settings recommended on the flip down chart located on the front of the machine. Adjust the settings further as needed.

7. When welding, avoid tight loops or extra loops in the torch cord.

Extra looping will stress the feed mechanisms and may slow down the wire speed.

8. Dross may build up on the gas nozzle and/or contact tip while welding.

Clean as necessary using MIG pliers. Spare torch parts, including replacement contact tips, are kept in the Metal Shop’s supply cabinet.

Shut-Down Procedure

1. Shut off the gas at the source. Turn the cylinder valve clockwise.

2. Bleed the lines.

  • Turn the wire speed down as far as it will go.
  • Pull the torch trigger and wait for the regulator gauge to read zero.

3. Flip the machine's power switch to "off."

4. Turn the ventilation off if no one else is using the bays.

5. Loosely coil the torch cord and store on the machine.

6. Put all tools away and clean the work area.

Subcategories

This category has only the following subcategory.

Pages in category "TIG Welders"

The following 4 pages are in this category, out of 4 total.