TIG welder
Miller Dialarc HF
TIG (Tungsten Inert Gas) welding is particularly useful for aluminium, It uses an electrode nozzle with a fixed (should be permanent, but they do wear) tungsten tip where a plasma 'flame' is created (started with a high-voltage / high freequency starter) and used to heat the filler wire and joint. The nozzle allows a flow of inert shield gas around the working area, reducing slag creation and (particularly important with aluminium) oxidation.
The TIG welder is a 'stick' welder - the electrode / nozzle is held in one hand, and the filler wire applied with the other.
Shield gas
For the TIG we use a Pureshield Argon.
Capacity and rating
The Tig welder has a large range
Controls
Details on the front panel controls
| Name | Picture | Description | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Main On Off Swtich |  |
Main switch on the welder, remember to turn off the welder as much as possible in-between setting up for welds | ||||||||||||
| DC+ AC DC- selector |  |
Do not change this setting with the main power switch ON. This selector has three positions that control the mode of the welder
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| Working power range selector |  |
Do not change this setting with the main power switch ON. There are three possible working ranges, low, medium and high. Each has a slightly different range for DC or AC
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| Percentage power dail |  |
Main power control dial, used to fine tune the amp control of the welder. This dial acts as a percentage of the current selected range. | ||||||||||||
| Remote amp control enable |  |
Used to enable remote amperage control when a foot control is installed. Until we have a remote foot pedal this should be left in the OFF position. | ||||||||||||
| High Frequency control |  |
Controls the high frequency generation of the welder, this switch has three positions and each has a set use.
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| Remote trigger enable |  |
This should be left in the ON position. Used to enable the remote trigger, only place in OFF position when doing Arc welding | ||||||||||||
| Gas overrun timer |  |
Controls how long after arc cut off the gas will run for. Outer scale is tungsten width, inner scale is time in seconds |
Tungsten and collets
We have a selection of the following tungsten tips and collets to fit
| Size | Color band | Used for |
|---|---|---|
| 1.6mm | Red | DCEN Steel |
| 2.4mm | Red | DCEN Steel |
| 1.6mm | White | AC Aluminium |
| 2.4mm | White | AC Aluminium |
| 1.6mm | Gold | AC or DCEN, All rounder Steel or Aluminium |
| 2.4mm | Gold | AC or DCEN, All rounded Steel or Aluminium |
Grinding tip shapes
Filler rods
We have the following stock of filler rods
- Steel
- Stainless steel
- Aluminium
- Copper
Power supply
A 63A plug and socket connection is used, with a pushbutton on/off control station and no-volt release.
RFID control of access will be installed shortly.
Tig welding tips
Random collection of useful links