You will need
  • - pipe Bender or
  • - machine tool Volnova or
  • - a spring of appropriate diameter or
  • the small sifted sand,
  • - a blowtorch or gas burner.
First, for these purposes commercially available and implemented in the free market pipe Bender, s of various types. Benders are stationary and manual. For domestic use well suited, for example, a pipe Bender for thin walled pipes. It can be used to bend copper, aluminum, thin-wall tube with plastic coated and stainless steel pipe from diameter 10 to 25 mm.
Before you begin, install the bending desired angle of flexion.
Take the machine in hand or clamp it in a vise.
Insert the tube and begin to bring arms.
Home craftsmen have been using the machine tool Volnova, which is easy to make yourself or order an experienced master.Figure: 1 — arm, 2 — clip, 3 — movable rollers, 4 — plate, 5 — roller-pattern, 6 — clamp, 7 — tube.Insert tube between rollers so that its end entered in the collar 7. Then the handle 3, turn the bracket around a stationary roller until you get the desired curve.
Return the handle to its original position and remove pipe.Clamp to clamp the long end of the pipe, and bend a short.
If neither bending, nor of the machine tool Volnova not, you can bend aluminum pipeusing the spring, a suitable diameter.Place the spring in a pipe in place of the bend and bend, preferably on the roller. The spring will keep the pipe wall from undesirable kneading.And the spring and the tube it is desirable to warm up.The spring then get fixed for the pre-wire.
Another old tried and tested craftsmen method.Fill the pipe with dry sifted sand.Plug the ends securely, so that during operation the sand is not squeezed.Secure the pipe in a vise and heat with a blowtorch or gas burner to the future site of bend.
If the paper, approached to the place of heating, begins to char, so the sand is hot.Start bending the pipe.