Changes

==Description==

==Description==

The Millermatic 210 is a wire feed metal inert gas (MIG) welder that is meant for light industrial use. Metal inert gas is a welding process in which an electric arc forms between a consumable MIG wire electrode and the base metal, which heats the base metal, causing them to melt and join. Along with the wire electrode, a shielding gas feeds through the welding torch, which shields the process from contaminants in the air. This is the easiest and most common type of welding which makes it perfect for those learning to weld. It uses 72/25 CO2 and Argon gas mixture to shield the molten weld from oxygen. If the weld pool is exposed to oxygen, it can create a handful of problems such as porosity and excessive spatter in the bead. This welder is capable of welding carbon steel as well as stainless steel. Before completing the training on this machine you must complete the [[Virtual Reality Welding Station]] training and spend some time practicing with it to get a feel for the welding process. Below is a short video explaining MIG welding.{{#evu:https://www.youtube.com/watch?v=twUAa5LWUvk}}

The Millermatic 210 is a wire feed metal inert gas (MIG) welder that is meant for light industrial use. Metal inert gas is a welding process in which an electric arc forms between a consumable MIG wire electrode and the base metal, which heats the base metal, causing them to melt and join. Along with the wire electrode, a shielding gas feeds through the welding torch, which shields the process from contaminants in the air. This is the easiest and most common type of welding which makes it perfect for those learning to weld. It uses 72/25 CO2 and Argon gas mixture to shield the molten weld from oxygen. If the weld pool is exposed to oxygen, it can create a handful of problems such as porosity and excessive spatter in the bead. This welder is capable of welding carbon steel as well as stainless steel. Below is a short video explaining MIG welding. Before completing the training on this machine you must complete the [[Virtual Reality Welding Station]] training and spend some time practicing with it to get a feel for the welding process. This purpose of this wiki is to explain the operation of the Millermatic 210 not the actual welding technique which is learned on the VR Welder. {{#evu:https://www.youtube.com/watch?v=twUAa5LWUvk}}

==Documentation==

==Documentation==

====Demonstration====

====Demonstration====

====General Procedure====

====General Procedure====

Prior to Welding:

Prior to Welding:

# Place the fume hood over the area you will be welding and make sure it is on. The power switch is located on the wall next to the door and light switch.

# Place the fume hood over the area you will be welding and make sure it is on. The power switch is located on the wall next to the door and light switch.

# Attach the ground clamp to the metal bench your workpiece will be on. Ideally, place the ground clamp on the base metal itself to create the smoothest path for the electrical current.

# Attach the ground clamp to the metal bench your work piece will be on. Ideally, place the ground clamp on the base metal itself to create the smoothest path for the electrical current.

# Ensure the workpiece is touching the conductive surface of the table. This is critical if the clamp is not touching the base metal.  

# Ensure the work piece is touching the conductive surface of the table. This is critical if the clamp is not touching the base metal.  

# Ensure the adjusting screw on the tank regulator is loose (Do not unscrew all the way).

# Ensure the adjusting screw on the tank regulator is loose (Do not unscrew all the way).

# Slowly open cylinder valve all the way. Suddenly opening the valve could cause damage to the regulator.

# Slowly open cylinder valve all the way. Suddenly opening the valve could cause damage to the regulator.

# Set up the work pieces in your desired configuration. Magnets and metal clamps are helpful for doing this and can be found on the tray below the tabletop.  

# Set up the work pieces in your desired configuration. Magnets and metal clamps are helpful for doing this and can be found on the tray below the tabletop.  

# Tack the pieces together in a few places by holding the torch at the proper angle and holding down the trigger for 2-3 seconds. Before pulling the trigger make sure to say "welding" to let everyone in the room know you are about to start. If you do not know the correct angle to hold the torch go practice some more on the [[Virtual Reality Welding Station]] until you are comfortable with the torch.  

# Tack the pieces together in a few places by holding the torch at the proper angle and holding down the trigger for 2-3 seconds. Before pulling the trigger make sure to say "welding" to let everyone in the room know you are about to start. If you do not know the correct angle to hold the torch go practice some more on the [[Virtual Reality Welding Station]] until you are comfortable with the torch.  

#  

# Perform as many welds as needed. If you are doing everything right the noise should sound like sizzling bacon. Also, you may need to periodically trim the wire between welds to keep the correct distance from the work piece.

After Welding

After Welding

# Close gas cylinder valve

# Close gas cylinder valve.

# Bleed remaining gas by depressing trigger until regulator drops to 0

# Bleed any remaining gas by depressing trigger until regulator drops to 0. Make sure the torch is not in contact with anything while doing this.

# Back out adjusting screw on regulator (Do Not unscrew all the way)

# Back out adjusting screw on regulator (Do Not unscrew all the way).

# Turn off the welder

# Turn off the welder.

# Remove ground clamp

# Remove the ground clamp and clean up any scraps and slag from the work area.

==Safety==

==Safety==

* Don't weld with the gas off. This can damage the machine.  

* Don't weld with the gas off. This can damage the machine.  

* Don’t unscrew valve adjusting screw all the way out. This could damage the valve.  

* Don’t unscrew valve adjusting screw all the way out. This could damage the valve.  

==Certification==

==Certification==