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Line 16: − + − |Has make= Miller+ − |Has model=Syncrowave 250DX − − + − + + Line 30:
Line 35: − + + + + + + + + − + + + + + − * [https://www.millerwelds.com/files/owners-manuals/O359H_MIL.pdf Owner's Manual]+ + + Line 59:
Line 77: + + + − Demonstrate you can safely setup the saw and rip a board. You will then proceed to cross cut one of the remaining pieces. Remember to set the blade height so it is protruding less than 1/8" out the top of material for less exposure. When performing a rip cut the fence is used to guide the lumber into the blade. You want to make sure that the distance between the fence and blade is the width of desired cut. Mark the edge of the material when doing a cross cut so you can align the material with the blade in the sled. You can also use a miter gauge for making cross cuts but make sure the material is long enough and well supported.+ Line 90:
Line 111: − − ==Safety== − # Don't exceed gas pressure past specified value − # Don't weld with gas off − # Don't touch tip to welding surface − # Don't weld in wet gear or standing water − # Don't unscrew valve adjusting screw all the way out − # Make sure ground clamp is connected to work − + Line 116:
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|Is used in domain=
|Has name={{PAGENAME}}
|Has name={{PAGENAME}}
|Has make= Miller
|Has model=Syncrowave 250DX
|Has serial number=MJ430071L
|Has life expectancy=
|Has year of manufacture or purchase=
|Has replacement cost=
|Has icon=File:TIG welder.png
|Has icon=File:TIG welder.png
|Has icondesc= Tig Welder
|Has icondesc= Tig Welder
|Has imagedesc= Miller 250 DX
|Has imagedesc= Miller 250 DX
|Has description=
|Has description=
|Has certification=
|Has certification=https://georgefox.instructure.com/courses/1270
|Has ace=Wyatt Bertis;wbertis22@georgefox.edu
|Has ace=Jack Ellis;jellis17@georgefox.edu
}}
}}
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Ace: {{#show: {{PAGENAME}} |?Has ace.Has name}} ({{#show: {{PAGENAME}} |?Has ace.Has email address}}).
__TOC__
__TOC__
==Safety First==
[[File:Safety First HD2.png|left|150px]]
* Don't exceed gas pressure past specified value
* Don't weld with gas off
* Always use a welding helmet and proper PPE
* Don't weld in wet gear or standing water
* Don't unscrew regulator adjusting screw all the way out
* Make sure ground clamp is connected to work
==Description==
==Description==
TIG stands for tungsten inert gas and is technically called gas tungsten arc welding (GTAW). The process uses a tungsten electrode located in a hand held torch that delivers the current to the welding arc. The tungsten and weld puddle are shielded and cooled with argon gas. A filler rod is used to manually add material to the weld puddle. During the welding process the tungsten should never touch the work piece. When this happens you will need to remove the tungsten and regrind the tip. Depending on the material being welded, TIG welding can be performed using either AC or DC current. Some of the advantages of this type of welding include strong high quality welds and many material options. One disadvantages of TIG welding is the speed is much slower compared to some of the other welding methods.
Here is an example of TIG welding and some good basic information.
Here is an example of TIG welding and some good basic information.
{{#evu:https://www.youtube.com/watch?v=IfJG4cMhIOc&list=PLhEXQudI6XCS3Rev1aaEwy0n4-68YdNTe&index=14&t=0s}}
{{#evu:https://www.youtube.com/watch?v=IfJG4cMhIOc&list=PLhEXQudI6XCS3Rev1aaEwy0n4-68YdNTe&index=14&t=0s}}
{{#evu:https://www.youtube.com/watch?list=RDCMUCTRI9Us8zLiywY29vsW3kKg&v=tNYmo2_DI6c&feature=emb_rel_end}}
{{#evu:https://www.youtube.com/watch?v=KvI0177YgrA}}
==Documentation==
==Documentation==
[[Media:O359H MIL.pdf|TIG Welder User Manual]]
====Terminology====
====Terminology====
*Squarewave technology was developed by Miller Electric in 1976 to improve your weld quality and make TIG (tungsten inert gas) welding easier. Miller Squarewave technology provides arc stability when welding aluminum, prevents arc rectification and eliminates tungsten erosion.
*Squarewave technology was developed by Miller Electric in 1976 to improve your weld quality and make TIG (tungsten inert gas) welding easier. Miller Squarewave technology provides arc stability when welding aluminum, prevents arc rectification and eliminates tungsten erosion.
*CFH-Cubic Feet Per Hour
*Balance control-The balance control is adjustable to provide additional oxide removal (more cleaning) or less cleaning based on the condition of the material being welded.
*Balance control-The balance control is adjustable to provide additional oxide removal (more cleaning) or less cleaning based on the condition of the material being welded.
====Operation====
====Operation====
Here are some general setup rules of thumb:
*The CFH gas setting should be roughly 2x the weld cup size. If you were to use a #7 cup the gas flow should be set to 14 CFH.
*The tungsten stick-out from the cup should be no more than the cup diameter. Using a #7 cup would allow for a maximum tungsten stick-out of 7/16"
====Demonstration====
====Demonstration====
The demonstration consists of two parts. For the first part you will need to setup the welder and safely attempt to weld a bead. The second part will require you to show knowledge of safely using the grinder and successfully grind a point on a tungsten rod.
====General Procedure====
====General Procedure====
*Turn off the welder
*Turn off the welder
*Remove ground clamp
*Remove ground clamp
==Certification==
==Certification==
[https://foxtale.georgefox.edu/moodle/course/view.php?id=31322 Foxtale Course]
[https://georgefox.instructure.com/courses/1270 Canvas Quiz]
==Troubleshooting==
==Troubleshooting==
!Done By
!Done By
|-
|-
|Lubricate mechanisms
|Check Argon Tank Pressure
|Semester
|Before Use
|Sample
|Student/Tech
|-
|-
|Clean machine interior
|Check Coolant Flow
|Monthly
|Before Use
|Tech
|Student
|-
|-
|Change the blade
|Inspect collet & Cup
|As Needed
|Before Use
|Tech
|Student/Tech
|}
|}