Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as...
-
Upload
mariano-ovard -
Category
Documents
-
view
231 -
download
2
Transcript of Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as...
![Page 1: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/1.jpg)
WeldingVigyan Ashram, Pabal
![Page 2: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/2.jpg)
What is welding?Joining of 2 or more metal parts together is
called as weldingPermanently joining metal – usually steel, using heat
to bring the base metal to its melting temperature. There are many types of methods in welding
but primarily followed arePressure WeldingFusion Welding
![Page 3: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/3.jpg)
Types of Welding MethodsSee video of Arc WeldingSee video of Gas Welding
![Page 4: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/4.jpg)
Arc WeldingTwo electrodes having electric charge are
joined together and seperated .The spark produced due to this is known as arc. Following is the diagram of Arc Welding
![Page 5: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/5.jpg)
Gas WeldingIn this type, Cylinders of Highly inflammable
gases like Acetylene is used for making a strong flame and the metals are cut or joined through heat produced by these flames.
In this process, Inflammable gas like acetylene is combined with oxygen to enhance the process
![Page 6: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/6.jpg)
Equipments in Gas WeldingOxygen CylinderAcetylene cylinderRubber Hose PipeWelding RodsWelding fluxApronWire brushHammerGoggle
![Page 7: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/7.jpg)
Gas Cutting
Automatic Manual
![Page 8: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/8.jpg)
Gas Welding
![Page 9: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/9.jpg)
Welding Positions
9
FLAT
HORIZONTAL
VERTICAL
OVERHEAD
INCREASING DIFFICULTY
![Page 10: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/10.jpg)
Types of Joints
10
BUTT JOINT
STRAP JOINT
LAP JOINT
FILLET JOINT
CORNER JOINT
![Page 11: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/11.jpg)
Reason for accidents in weldingWrong informationCarelessness in handling equipmentsInsufficient lighting at workplaceCongested placeNot using safety equipments
![Page 12: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/12.jpg)
Welding PrecautionsCheck the Machines conditions regularlyUse of proper safety equipmentsWelding should not be done in a congested
placeWelding Machine and Main Switch distance
must be less
![Page 13: Vigyan Ashram, Pabal. What is welding? Joining of 2 or more metal parts together is called as welding Permanently joining metal – usually steel, using.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649c885503460f94941390/html5/thumbnails/13.jpg)
Welding Safety Equipments
13