RECTANGULAR TRAY. AIM: To prepare a Rectangular tray of given dimensions (l = 120 mm, b = 80 mm, h=24 mm) using a galvanized iron sheet.

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1 RECTANGULAR TRAY AIM: To prepare a Rectangular tray of given dimensions (l = 120 mm, b = 80 mm, h=24 mm) using a galvanized iron sheet. MATERIAL REQUIRED: galvanized iron sheet of 180 mm x 140 mm TOOLS REQUIRED: Steel rule, scriber, stake, straight snip, mallet, nose pliers. SEQUENCE OF OPERATIONS: 1. Cleaning & marking, 2. Cutting, 3. Edge folding, 4. Bending, 5. Joining, 6. Finishing. PROCEDURE: 1. Prepare the development of the rectangular tray as per the dimensions given (l = 120 mm, b = 80mm, h = 24mm). 2. Choose a G. I sheet size to accommodate the development. 3. Clean the sheet and mark the development using steel rule, scriber and divider. 4. Remove the unwanted material by using a straight snip. 5. Fold the edges on the required sides by using a suitable stake. 6. Bend the sheet at required markings to get the shape using suitable stake and mallet. 7. The Rectangular tray of required dimensions is obtained. PRECAUTIONS: 1. Cutting should be done along the marked lines care fully. 2. Selection of stake is important for the required shape. 3. Excessive hammering of mallet during edge folding and finishing should be avoided. 1. Since the sheet metal has sharp edges at should be handled care fully to avoid endures. RESULT: The Rectangular tray of required dimensions is obtained.

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3 DUST - PAN AIM: To prepare a Dust pan of given dimensions using a galvanized iron sheet. MATERIAL REQUIRED: Galvanized iron sheet of 110 mm x 140 mm TOOLS REQUIRED: Steel rule, scriber, stake, straight snip, mallet, nose pliers. SEQUENCE OF OPERATIONS: 1. Cleaning & marking, 2. Cutting, 3. Edge-folding, 4. Bending, 5. Joining, 6. Finishing. PROCEDURE: 1. Prepare the development of the Dust pan as per the dimensions given (l = 104 mm, b1= 50 mm, b2=70 mm, h1=14 mm, h2= 24 mm). 2. Choose a G. I sheet size to accommodate the development. 3. Clean the sheet and mark the development using steel rule, scriber and divider. 4. Remove the unwanted material by using a straight snip. 5. Fold the edges on the required sides by using a suitable stake. 6. Bend the sheet at required markings to get the shape using suitable stake and mallet. 7. The Dust pan of required dimensions obtained. PRECAUTIONS: 1. Cutting should be done along the marked lines care fully. 2. Selection of stake is important for the required shape. 3. Excessive hammering of mallet during edge folding and finishing should be avoided. 4. Since the sheet metal has sharp edges at should be handled care fully to avoid endures. RESULT: The Dust pan of required dimensions is obtained.

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5 FUNNEL AIM: To prepare a Funnel of given dimensions using a galvanized iron sheet. MATERIAL REQUIRED: Two galvanized iron sheet of 226 x 119 mm 2 and 65 x 50 mm 2. TOOLS REQUIRED: Steel rule, scriber, stake, curved snip, mallet, nose pliers. SEQUENCE OF OPERATIONS: 1. Cleaning & marking, 2. Cutting, 3. Edge-folding, 4. Bending, 5. Joining, 6. Finishing. PROCEDURE: 1. Prepare the development of the Funnel as per the dimensions given. 2. Choose G. I sheet size to accommodate the development. 3. Clean the sheet and mark the development using steel rule, scriber and divider. 4. Remove the unwanted material by using a curved snip. 5. Fold the edges on the required sides by using a suitable stake. 6. Bend the sheet at required markings to get the shape using suitable stake and mallet. 7. Edge joining should be done as in fig. 8. The pieces are assembled with proper alignment and soldering is done. 9. The Funnel of required dimensions obtained. PRECAUTIONS: 1. Cutting should be done along the marked lines care fully. 2. Selection of stake is important for the required shape. 3. Excessive hammering of mallet during edge folding and finishing should be avoided. 4. Since the sheet metal has sharp edges at should be handled care fully to avoid endures. RESULT: The Funnel of required dimensions is obtained.

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7 ELBOW PIPE JOINT AIM: To prepare a Pipe elbow joint of given dimensions using a galvanized iron sheet. MATERIAL REQUIRED: Two galvanized iron sheets of x mm 2. TOOLS REQUIRED: Steel rule, scriber, stake, straight snip, mallet, nose pliers. SEQUENCE OF OPERATIONS: 1. Cleaning, marking, 2. Cutting, 3. Edge -folding, 4. Bending, 5. Joining, 6. Finishing. PROCEDURE: 1. Prepare the development of the Pipe elbow joint as per the dimensions given. 2. Choose a G. I sheet size to accommodate the development. 3. Clean the sheet and mark the development using steel rule, scriber and divider. 4. Remove the unwanted material by using a curved snip. 5. Fold the edges on the required sides by using a suitable stake. 6. Bend the sheet at required markings to get the shape using suitable stake and mallet. 7. Edge joining should be done as in fig. 8. The pieces are assembled with proper alignment and soldering is done. 9. The Pipe elbow joint of required dimensions obtained. PRECAUTIONS: 1. Cutting should be done along the marked lines care fully. 2. Selection of stake is important for the required shape. 3. Excessive hammering of mallet during edge folding and finishing should be avoided. 4. Since the sheet metal has sharp edges at should be handled care fully to avoid endures. RESULT: The Pipe elbow joint of required dimensions is obtained.

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9 PIPE T-JOINT AIM: To prepare a Pipe T-joint of given dimensions using a galvanized iron sheet. MATERIAL REQUIRED: Two galvanized iron sheets of x mm 2 and x mm 2 TOOLS REQUIRED: Steel rule, scriber, stake, curved snip, mallet, nose pliers. SEQUENCE OF OPERATIONS: 1. Cleaning & marking, 2. Cutting, 3. Edge-folding, 4. Bending, 5. Joining, 6. Finishing. PROCEDURE: 1. Prepare the development of the Pipe T joint as per the dimensions given (d = 50.8 mm, female = 127.7mm, male =76.55mm). 2. Choose a G. I sheet size to accommodate the development. 3. Clean the sheet and mark the development using steel rule, scriber and divider. 4. Remove the unwanted material by using a curved snip. 5. Fold the edges on the required sides by using a suitable stake. 6. Bend the sheet at required markings to get the shape using suitable stake and mallet. 7. Edge joining should be done as in fig. 8. The pieces are assembled with proper alignment and soldering is done. 9. The Pipe T-joint of required dimensions obtained. PRECAUTIONS: 1. Cutting should be done along the marked lines care fully. 2. Selection of stake is important for the required shape. 3. Excessive hammering of mallet during edge folding and finishing should be avoided. 4. Since the sheet metal has sharp edges at should be handled care fully to avoid endures. RESULT: The Pipe T-joint of required dimensions is obtained.

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