Lesson Notes By Weeks and Term - Junior Secondary 1

TERM – 3^RD TERM

WEEK FIVE

Class: Junior Secondary School 1

Age: 12 years

Duration: 40 minutes of 5 periods each

Date:

Subject: BASIC TECHNOLOGY

Topic: METALWORK HAND TOOLS 2

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

1. Describe and identify Driving tools
2. State the uses of driving tools
3. Describe and identify cutting tools
4. State the uses of cutting tools
5. Identify ways to care and maintain wood work hand tools.

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers,

demonstration, videos from source

INSTRUCTIONAL MATERIALS:  Videos, loud speaker, textbook, pictures, driving tools, cutting tools.

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

NOTE

METALWORK HAND TOOLS 2

Driving and impelling tools.

In metalworking, driving and impelling hand tools are those designed to apply force or motion to materials for shaping, assembling, or joining.

1. Hammer: For driving nails, rivets, or shaping metal. Different types include ball-peen, claw, and sledgehammers.

2. Mallet: Provides impact without damaging delicate surfaces. Often used in conjunction with chisels or for forming metal.

3. Screwdriver: Applies torque to screws for fastening or loosening. Comes in various types, including flat-head and Phillips.

4. Wrenches: Turned to tighten or loosen nuts and bolts. Examples include adjustable wrenches, socket wrenches, and combination wrenches..

5. Punches: Driven through materials using a hammer to create holes, mark points, or align components

Cutting Tools

Cutting tools are implements or instruments used to remove material from a workpiece to achieve a specific shape, size, or finish. In metalworking, cutting tools play a crucial role in processes such as turning, milling, drilling, and grinding.

Tools used for cutting metal workpieces vary depending on the specific operation and requirements. Below are some common tools used in metal cutting:

1. Hacksaw: For cutting through metal bars, pipes, and other materials. It's versatile and suitable for various metal thicknesses.

2. Chisels: Hand chisels can be used for cutting or shaping metal, particularly in tasks like removing excess material or creating grooves.

3. Snips: Aviation snips or tin snips are hand tools designed for cutting sheet metal. They come in straight, left-cut, and right-cut varieties.

4. Files: While primarily for shaping and smoothing, files can also be used for cutting softer metals by abrasion.

5. Hand Shears: Manual shears designed for cutting sheet metal. They are available in various designs, including straight-cut and curved-cut shears.

6. Pliers: Grasp, bend, or cut materials. Different types include needle-nose, lineman's, and slip-joint pliers.

Boring tools

Boring tools are instruments designed for enlarging, refining, or straightening holes in metal piece. Examples include drill bits and reamers for precision hole sizing.

The following are examples of hand tools used for boring operations in metalworking along with their uses:

1. Hand Drill: Manual tool for drilling small holes in metal. It is versatile and suitable for various applications.

2. Brace and Bit: Traditional tool for drilling holes in metal. The brace provides leverage, and different bits can be used for various hole sizes.

3. Hand Reamer: Used for enlarging or smoothing out existing holes in metal. Hand reamers come in various designs for different applications.

Care and Maintenance of metal work hand tools

Proper care and maintenance of metal work hand tools are essential for ensuring their longevity, performance, and safety. Here are some general tips:

1. Clean Tools Regularly: Remove dirt, grease, and debris from tools after each use. Use a wire brush, solvent, or a damp cloth, depending on the type of tool and the material it was used on.
2. Inspect for Damage: Regularly inspect tools for signs of wear, damage, or deformation. Replace or repair any tools that are bent, chipped, or show other forms of deterioration.
3. Keep Tools Dry: Moisture can lead to rust and corrosion. Store tools in a dry environment, and if they get wet, dry them thoroughly before storing.
4. Lubricate Moving Parts: Apply a light coat of oil or lubricant to moving parts, such as hinges or adjustable mechanisms, to prevent rust and ensure smooth operation.
5. Store Properly: Store tools in a clean, organized manner. Use toolboxes, racks, or pegboards to keep tools easily accessible and prevent damage during storage.
6. Handle Tools Carefully: Avoid using tools for tasks beyond their intended purpose. For example, don't use a screwdriver as a chisel. Use the right tool for the job to prevent damage.
7. Follow Manufacturer's Recommendations: Adhere to any care and maintenance guidelines provided by the manufacturer. These guidelines are specific to the type of tool and material.

EVALUATION: 1. Mention 5 driving tools and state their uses

2. Mention 5 cutting tools and state their uses
3. Identify 5 ways of caring for metal work hand tools.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively