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.
For the TIG we use a Pureshield Argon.
Capacity and rating
The Tig welder has a large range
Details on the front panel controls
|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
- DC- (DCEN), DC Electrode Negative, used for Steel TIG
- AC, used for Aluminium TIG
- DC+ (DCEP), DC Electrode Positive, used for Arc
|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
|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.|
- Up (IO) High frequency start, use this for DC TIG welding (Steels)
- Middle (O) Off used for Stick welding
- Down (I) On, used to AC Tig welding (Aluminum)
|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
||AC or DCEN, All rounder Steel or Aluminium
||AC or DCEN, All rounded Steel or Aluminium
Grinding tip shapes
We have the following stock of filler rods
- Stainless steel
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