An unusual way to make a perfect right-angle bend in a round pipe without a pipe bender

An unusual way to make a perfect right-angle bend in a round pipe without a pipe bender

It is impossible to bend a large-diameter thick-walled pipe with a manual pipe bender. This is done in another accessible way. It is suitable in cases where the pipe will not be used for a gas pipeline or water supply, but only as a power structure.

What you will need:


  • Bulgarian;
  • welding machine;
  • paper;
  • ruler;
  • scotch;
  • marker;
  • putty;
  • dye.

Pipe bending process


Thick wall pipe

A rectangle is cut out of paper, the length of which is equal to the circumference of the pipe, and its width is twice the diameter. It bends in half. A line is drawn along the bend, and parallels are drawn on the left and right with an indentation of 1 cm.
The sheet is wrapped around the pipe with the lines facing out, and its edges are connected with tape. Then the pipe is traced around its edges. Marks are placed on it along the side parallels and the seam line of the sheet. These points are connected.
The sheet is wrapped around the pipe

Along the lines you need to place transverse marks in increments of 5 mm. Circles are drawn along them. The space between parallels is left clear.
Along the lines you need to put transverse marks

Circles are drawn along them

pipe marked for cutting

A cut is made along each circle using a grinder.
A cut is made along each circle with a grinder

After this, the pipe can bend, depending on the cross-section of the grinder disk, up to 45°. To bend it even more, you need to remove the centers of the strips one at a time.
bend depending on the cross section of the disk

remove the centers of the strips after one

The remaining side parts should be pressed inside the pipe. After this, it will bend at a right angle.
The remaining side parts should be pressed inside the pipe

After this, the pipe will bend at a right angle

Further along the bend, several longitudinal welding seams are applied.
several longitudinal welding seams are applied

We sand the seams.
Sanding the seams

Everything is cleaned and puttied.
An unusual way to make a perfect right-angle bend in a round pipe without a pipe bender

cleaning the pipe

Cleaning the putty

After painting, the resulting knee will look perfect.
After painting, the resulting knee will look perfect

Watch the video


come back
Comment
  • bowtiesmilelaughingblushsmileyrelaxed relaxedsmirk
    heart_eyeskissing_heartkissing_closed_eyesflushedrelievedsatisfiedgrin
    winkstuck_out_tongue_winking_eyestuck_out_tongue_closed_eyesgrinningkissingstuck_out_tonguesleeping
    worriedfrowninganguishedopen_mouthgrimacingconfusedhushed
    expressionlessunamusedsweat_smilesweatdisappointed_relievedwearypassive
    disappointedconfoundedfearfulcold_sweatperseverecrysob
    joyastonishedscreamtired_faceangryragetriumph
    sleepyyummasksunglassesdizzy_faceimpsmiling_imp
    neutral_faceno_mouthinnocent
3+three=
Comments (4)
  1. Guest Anatoly
    #1 Guest Anatoly Guests 12 January 2021 13:28
    10
    It is incomparably easier and cheaper to weld cast elbows in the right places.
    1. Guest Sanya
      #2 Guest Sanya Guests March 7, 2021 02:06
      2
      They are not cast and not knee...
      they are pulled and retracted.
  2. Fantasy in real life.
    #3 Fantasy in real life. Guests March 1, 2021 06:01
    2
    Hmm, it’s a little easier to cut and weld at an angle. Just cook anyway.
  3. Guest Sanya
    #4 Guest Sanya Guests March 7, 2021 02:02
    2
    Judging by the photo, this is a one and a half to two inch pipe.Why do you have to buy a bunch of putty, make 20 cuts (by the way, you also need to be able to file them correctly), spend a lot of time, then bring it all to fruition... Isn’t it easier to just buy an outlet and weld it (grab it). The article is more about how to spend time.
    P.S. The author of the article is most likely a bodybuilder, but not a welder.