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Lesson No. 04 Week No. 04

Lesson No. 04 Week No. 04. Lesson Name Hammer. HAMMER. Use :- Hammer is used for striking purpose while; - Punching, bending, straightening, chipping, forging, riveting. Material :- Drop forged Carbon steel, Wood, Nylon Lead. Ball Pein Hammer

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Lesson No. 04 Week No. 04

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  1. Lesson No.04Week No.04 Lesson Name Hammer

  2. HAMMER • Use:- Hammer is used for striking purpose while; - Punching, bending, straightening, chipping, forging, riveting. • Material:- Drop forged Carbon steel, Wood, Nylon Lead. Ball Pein Hammer Face The face is the striking portion. Slight convexity is given to it to avoid digging of the edge.

  3. Eye hole Pein Handle Cheek Face Pein:- The pien is the other end of the end. It is used for shaping and forming work like riveting and bending. The pein is of different shapes like ball pein, cross pein or straight pein. Cheek:- The cheek is the middle portion of the hammer-head. The weight of the hammer is stamped here. This portion of the hammer head is left soft.

  4. HAMMER Eye hole Pein Handle Cheek Face .Eye hole:- A eye hole is meant for fixing the handle. It is a shaped to fit the handle rigidly. The wedges fix the handle in the eye hole. Handle:- A handle is meant for giving leverage during striking. It is made of wood.

  5. Ball Pein:- This hammer head is used most commonly for general striking purpose. It is used for forming rivet head and for forging purpose. Shape of its head is ball hence it is called ball pein hammer. It is available in 0.11 to 0.91 Kg.

  6. Cross Pein:- This hammer head is formed at 90º to the direction of its handle. It is used for making channel, ‘V’ groove, to make inside corner of the jobs and expanding metal sheets. It is available in 0.22 to 0.91 Kg.

  7. Straight Pein:- This hammer head is formed in straight line to the direction of its handle. It is also used for making channel, ‘V’ groove, to make inside corner of the jobs and expanding metal sheets. It is available in 0.11 to 0.91 Kg.

  8. QUESTIONS • State the different type of Hammer. • Which material are used in Hammer ? • What are the parts of Hammer ?

  9. CONCLUSION • Student should be learn types, parts, Uses & Material of Hammer.

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