Workshop I Lab manual

1.0 Smithy

Syllabus:

1. Introduction to safety in smithy shop
2. Introduction of hand tools and equipments
3. Operations in smithy
4. Identify the defects in smith forged components

Exercises:

1. Round rod to hexagonal rod
2. Round rod to square rod
3. Round rod to square headed bolt
4. Round rod to ‘S’ Shape
5. Round rod to flat with 25mm
   Material: Dia 12mm X 100mm Length.

2.0 Foundry

Syllabus

1. Introduction of tools and equipments
2. Types of patterns
3. Types of sand
4. Preparation of sand moulds
5. Furnaces- crucible furnace and tilting furnace
6. Melting if non ferrous metal
7. Core sands, preparation of cores

Exercises:
Preparation of sand mould:

1. Solid pattern
   a. Stepped Pulley
   b. Bearing top
   c. Gear Wheel
   d. T-pipe
2. Split pattern
   a. Bent Pipe
   b. Dumbles
3. Loose Piece Pattern- Dowtail
4. Cylindrical core making
5. Melting and casting– (Not for Examination, only for class exercises)

3.0 Welding

Syllabus

1. Introduction of safety in welding shop
2. Introduction to hand tools and equipments
3. Are and gas welding equipments
4. Types of joints

Exercises:

1. Arc welding
   • Lap joint ( Material: 25mm x 3mm Ms Flat )
   • Butt joint ( Material: 25mm x 6mm Ms Flat )
   • T-joint ( Material: 25mm x 3mm Ms Flat )
   • Corner joint ( Material: 25mm x 3mm Ms Flat )
2. Gas Welding
   • Lap joint ( Material: 25mm x 3mm Ms Flat )
   • Butt Joint ( Material: 25mm x 6mm Ms Flat )
3. Gas cutting: Profile cutting.
4. Spot welding-Lap joint(18/20swg)
5. Demonstration of Soldering and brazing

SCHEME OF EXAMINATION:
Foundry : 45 marks (2 hours)
Smithy / Welding (by lot) : 25 marks (1 hour)
Viva-voce : 05 marks
Total : 75 marks