1/16" and 3/32" Tungsten, Standard Collet, WP-20 torch

[commuter ebikes]

While I usually use a gas lens, I sometimes weld with a standard collet body. I have a 20 series torch, and I only use 1/16" and 3/32" tungsten.

I posted this diagram and chart from https://www.weldingcity.com/tig-weld...s-995795s.html in another thread, but now I am looking at the standard collet body part numbers.

[commuter ebikes]

So for a 1/16" electrode and standard collet body, one needs:

(1) Cup Gasket 598882 (this is provided on a WP-20 torch when you buy it),
(2) "Standard" (as opposed to "long") Collet 13N22,
(3) Standard Collet Body 13N27, and
(4) 6 cups to choose from ranging from #4 to #10. An example is 13N12 for a #8 cup.

[commuter ebikes]

So for a 3/32" electrode and standard collet body, one needs:

(1) Cup Gasket 598882,
(2) Standard Collet 13N23,
(3) Standard Collet Body 13N28, and
(4) 6 cups to choose from ranging from #4 to #10. An example is 13N09 for a #5 cup.

[commuter ebikes]

Happily, the Back Caps are not dependent on either tungsten diameter or collet type. Just choose short, medium or long.

I was surprised that my boss at the welding shop had never heard of a gas lens, but he went to welding school in 1991.

I was surprised that the clerk at the LWS needed to look up the PN for a WP-20 torch part that I was buying, but now I see that one needs different collets and collet bodies for different electrode diameters, as well as longer collets for large diameter gas lens collet bodies.

I made these threads because I was annoyed that I needed different torch parts for 1/16" and 3/32" electrodes. I was also annoyed that I needed to use a Large Diameter Gas Lens for a #10 or #12 cup.

I will have to have 4 bins for parts:
(1) standard nozzle, 1/16" tungsten,
(2) standard nozzle, 3/32" tungsten,
(3) gas lens, 1/16" tungsten, and
(4) gas lens, 3/32" tungsten.