Lesson No. 05 Week No. 03

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Lesson No.05Week No.03

• Lesson Name
• Hammer

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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.
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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.
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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.
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• 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.

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• 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.

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• 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.

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QUESTIONS

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

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CONCLUSION

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