The welding workshop group 3
-
Upload
claudialencinas -
Category
Education
-
view
126 -
download
1
description
Transcript of The welding workshop group 3
![Page 1: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/1.jpg)
THE WELDING WORKSHOP
1st YEAR
II CICLE
E.E.T. Nº 16
![Page 2: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/2.jpg)
Metal Arc Welding is the process
of joining tw
o metal pieces
using a flux–coated rod.
Gather the tools
and materials
you will need to begin welding.
And set up a safe
work area.
![Page 3: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/3.jpg)
Here are some of the tools and safety equipment we use in the welding workshop.
welding leatherswelding gloves
square
welding legs
welding shield
hammer
wire brush ruler welding sleeveschipping hammer
![Page 4: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/4.jpg)
We measure the material with the ruler.
We must have the tools at hand and ordered in a logical way.
We remove the slag and clean up the weld with the chipping hammer and the wire brush.
![Page 5: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/5.jpg)
This is a machine tool. It is an electric cicular saw. It is used for cutting metal.
![Page 6: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/6.jpg)
We use these three mechanic tools for cutting and bending the pieces of material.
![Page 7: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/7.jpg)
This is an arc welding machine. It converts 120-240 volt AC electricity to welding
voltage, typically 40-70 volts AC.
![Page 8: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/8.jpg)
The welder must wear safety clothes to prevent the damage of sparks.
Here, the welder is putting on the “welding boots”.
![Page 9: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/9.jpg)
The “welding leathers” is a specially insulated leather apron.
The “welding sleeves” are also made of leather.
![Page 10: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/10.jpg)
The “welding shield” is a mask which is worn to protect the person welding, from the bright flash of the arc and
from sparks being thrown during welding.
The “welding gloves” are insulated leather gloves that reach about six inches above the wrists.
![Page 11: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/11.jpg)
We use a punch to mark the metal surface.
![Page 12: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/12.jpg)
The ground clamp is attached to the work piece. and completes the electrical circuit.
It completes the electrical circuit allowing the electricity to pass through the metal being welded.
![Page 13: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/13.jpg)
The “welding leads” hold the electrode.
![Page 14: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/14.jpg)
After properly fitting the work pieces, strike the arc.
![Page 15: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/15.jpg)
Then move the arc to create a bead.
![Page 16: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/16.jpg)
Chip the weld between passes to remove the slag or the melted electrode flux material.
![Page 17: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/17.jpg)
Then wire brush, so only clean molten metal will fill the weld on the subsequent pass.
![Page 18: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/18.jpg)
Following these simple
steps we will have
the window frame
done in two
weeks work.
The End
![Page 19: The welding workshop group 3](https://reader035.fdocuments.in/reader035/viewer/2022081516/55839f9fd8b42a08148b5073/html5/thumbnails/19.jpg)
Students
Bernal, J
onathan
Bubrosk
y,
Mauricio
Domínguez,
Nicolás
Maidana, Joel
Salas, Mila
gros
Silva, F
ranco
Tourn
, Pamela
AUTHORS:
September, 2013