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Experiment No.: Date:
SINGLE ‘V’ BUTT JOINT
Aim:
To prepare a single ‘V’ Butt Joint as per dimensions given in the sketch.
Material Required:
Mild Steel plates: 80mm X 40mm X 6mm = 2 Nos
Mild Steel electrode ¢ 3.15 mm
Equipment required:
A.C. Transformer with all welding accessories like Electrode holder, cables.
Tool Required:
- Steel rule 300mm
- Scriber 150mm
- Flat file 300mm
- Try square 200mm
- Flat Tong 450mm
- Chipping hammer 200mm
- Ball peen hammer 750mm
- Wire brush
- Welding screen
Sequence of Operations:
1. Marking
2. Filing
3. Welding
4. Finishing
Procedure:
- Take two Mild steel plates of size 80mm X 40mm X 6mm.
- Fix the work pieces one by one in bench vice and file the faces of work pieces using flat file as per dimensions.
- Then mark the pieces using steel rule and scriber as per drawing.
- Again fix the work pieces one by one in bench vice and file the pieces to get the required shape of the edge as per drawing.
- Select the appropriate welding fixture and hold the pieces as per drawing.
- At some selective places of the joint perform some weld spots for perfect alignment of the job.
- Start the welding from one end and proceed to another end.
- Like this continue the welding operation for one more time to get weld bead.
- Allow the welded joint for solidification.
- After cooling, chip off the slag from welded joint with the help of chipping hammer and clean the joint by wire brush.
Safety Precautions:
- Use welding screen leather apron and leather hand gloves while welding
- Use flat tong and hand gloves for handling of work pieces during and after welding.
Result:
Single ‘V’ butt joint is prepared as per given dimensions.
Comments
insulated heating wire