How to welding single " v" butt joint with calipers
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 150mmFlat file 300mmTry square 200mmFlat Tong 450mm Chipping hammer 200mmBall peen hammer 750mm Wire brushWelding 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 weldingUse flat tong and hand gloves for handling of work pieces during and after welding.
Result:
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