We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

It is possible to bend and connect a profile pipe at a right angle without welding. This method will help out if it is not available during the manufacture of various frames and frames.

Tools:


  • square;
  • felt-tip pen;
  • grinder with cutting wheel.

Pipe bending process without welding


On the sides of the pipe you need to draw a right angle, setting the square at 45°.
We bend the profile pipe 90 degrees without welding

They should be located opposite. Along the inside of the pipe bend, the corner points are connected together, resulting in 2 parallel lines.
We bend the profile pipe 90 degrees without welding

From the right line you need to step back 10 mm to the right and draw a parallel. A longitudinal line is drawn in the middle between them. From the left line you need to retreat 15 mm to the right, and also draw a parallel. They are connected together by lines along the edges of the pipe.
We bend the profile pipe 90 degrees without welding

Using a grinder with a thin cutting wheel, cuts are made along the contours of the side corners. On the inside of the bend you need to cut 2 right parallels and a longitudinal line between them. On the left parallels, the cut is made only on the internal transverse line and longitudinal marks near the ribs.
We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

The cut metal is removed. The protruding tongue is bent outward at a right angle 1 mm from its beginning. The opposite antennae also turn out.
We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

Next, the pipe is bent at a right angle, and its tongue is pressed with tendrils, which return to their original position. The reliable hard corner is ready.
We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

We bend the profile pipe 90 degrees without welding

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Comments (3)
  1. Alexei
    #1 Alexei Guests 5 October 2020 21:15
    1
    Good idea. I would also put a rivet in the tongue for strength.
    1. Sergey K
      #2 Sergey K Visitors 6 October 2020 14:18
      1
      The downside of the idea is that it requires a lot of effort in figure cutting.
  2. Sergey K
    #3 Sergey K Visitors 6 October 2020 14:16
    0
    Once upon a time I used this way to bend the profile and corners for a shelf on the balcony. There are no tongues, the fixation goes to the plywood itself - the covering of the shelf. And if we take as a basis the idea expressed just above - make the tongue from a separate corner and attach it to the inside of the bend with rivets. Rivets are those that do not require access to the reverse side.