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Machine metal to make an outdoor lantern

After the necessary learning on pieces of metal (bars and plates), you will be able to pass to the realization of an outdoor lantern, exercise besides proposed to the welding students in formation.

Necessary material

  • Vice
  • Clamps
  • Metal square
  • Welding machine
  • Mass clamp
  • Mask and protective gloves
  • grinder
  • Electrode
  • Hammer to prick
  • Lime
  • Wire brush
  • angles
  • sheet metal

Steps

  1. Welding angle
  2. Constitution of the building
  3. finishes

Welding angle

The end of the angles is filed down

The end of the angles is filed down

1. After all preliminary operations: measuring, tracing, miter cutting, place each angle between the jaws of a vise and file the end. By scouring the metal, you prepare it for welding.

The angles are fixed with a clamp

The angles are fixed with a clamp

2. Using a clamp, attach one of the corners to the edge of the marble that serves as the work surface.

The angles are placed in the assembly position

The angles are placed in the assembly position

3. Put the second angle in the assembly position. Be sure to correct the set-up with a square and secure this angle with a clamp.

Arc welding assembly

Arc welding assembly

4. Attach the ground clamp to one of the brackets and proceed with arc welding. Always take the same precautions to work: wear protective gloves and hold the welding mask in front of your face. Rub the electrode on the metal and quickly raise it a few millimeters. Hold it slightly inclined in the direction of advance of the weld to promote the subsequent release of the slag.

Constitution of the building

The slag is removed with a hammer

The slag is removed with a hammer

5. After cooling the metal, use the prick hammer to remove the slag, that is, the film covering the weld seam.

Verification of squareness

Verification of squareness

6. Check the weld correction made by placing the two assembled angles in the angle of a square. Then grind the outer surface of the weld to give it a clean, even appearance. Use a portable grinder equipped with an abrasive disc.

The upper square is assembled

The upper square is assembled

7. After welding in turn two other angles to form the top square of the lantern, remove the slag using the prick hammer, inside the angles and on their outer surface.

Portable angle grinder for sanding welds

Portable angle grinder for sanding welds

8. Secure the assembled square on the worktop with a clamp. Use a portable angle grinder to sand the outer surfaces of the welds.

The assembled angles are immobilized before being ground

The assembled angles are immobilized before being ground

9. The body of the lantern is made up of two U's joined at their base by angles. U are made by welding angles. Once the weld seams are made in the corners, secure the assembled angles to grind the welds; use the portable grinder. Previously, you will have, of course, eliminated the slag with the hammer.

The interior of the four corners is welded

The interior of the four corners is welded

10. Using clamps, hold the top square of the lantern and the rest of the "rack" together. Weld inside the four corners, after attaching the ground clamp on one of the angles, to a clean place. As after each weld, use the prick hammer to remove the slag and grind to sharpen the outer surface of the welds.

finishes

Roof laying

Roof laying

11. After cutting four isosceles triangles from a sheet of metal, using a jigsaw, file the gripping zones to prepare them for welding. Wedge two of these sheets so that their bases form a right angle and one of their sides is joined. Place a wedge inside the formed corner to hold the assembly together. Weld and repeat the operation to assemble the four triangles. Place the roof thus formed on the top square of the lantern frame. Make a weld bead all around the base of the hat. Eliminate the slag with the hammer; grind the solder to give it a crisp, clean and shiny look. Weld on the top of the roof the end of the stem.

The scrolls are welded to the leg

The scrolls are welded to the leg

12. The lantern is finished. All that remains is to fix on the gallows decorative scrolls. Immobilize the volute on the paw with a clamp, and weld to the places where they are in contact.

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