Swaging brass tube

[Glueman2]

Hello all, I am making a wooden flute and want to include a tuning slide. I haven't been able to find commercial brass tube where one size slides into another. Swaging has been suggested but need some help about how you do it.

[Jon]

Hi Glueman2 - welcome to HomemadeTools.net

Try out this link for ideas: Homemade Tools Search: swage - HomemadeTools.net

[ChipMkr]

Hi, McMaster-Carr sells telescoping brass tubing up to 1" in dia.

[Frasercat]

Hi Glueman2,
Allied Supply sell what you want but only to Musical instrument repair technicians. Maybe you could have a chat with Todd at Brass Music Specialists in Brisbane. He may have what you want in stock or could order it in for you.

[Toolmaker51]

telescoping brass tubing googles easily but the .com vendors may not suit delivery in Queensland.
Biggest issue to swaging your own is a question of power, whether drawing through a die or building a rotary swage. First step is supply of annealed tubing, or annealing commercial half-hard lengths. Any sites dealing with reloading of rifle cartridges will cover the simple process; it is air cooled not chilled.
If I was faced with producing an airtight seal, first attempt might be felt 'o-rings' and lube used by brass musicians.