SINING
BEAUTY AT WELLNESS
CRAFTS
KULTURA AT KASAYSAYAN
LIBANGAN
KAPALIGIRAN
PAGKAIN AT INUMIN
REVERSE ENGINEERING
AGHAM
ISPORTS
TEKNOLOHIYA
MGA WEARABLE
Claw Hammer: Drop-Forged Head, Turned Wooden Handle
A claw hammer's head is high-carbon steel, hot forged between dies and then hardened only where it takes the blows: the face, the poll and the claws. The handle is straight-grained ash or hickory, woods with good strength, durability and enough give to absorb the shock of repeated blows. It is turned on a lathe that copies a cam, pushed up through the head's eye and wedged: one thin wooden wedge driven diagonally into a slot, then two steel wedges driven through it crossways.
Abantado
Factory process
Mga Tagubilin
1
1
Heat the bar
Heat the bar
Heat a length of steel bar to about 1,200–1,300 °C (2,200–2,350 °F) with open flame torches or by passing it through an induction coil.
Mga materyales para sa hakbang na ito:
Parisukat na barang tool steel1 as requiredMga kailangang kasangkapan:
Pampainit na induction2
2
Forge the head
Forge the head
Put the hot bar or a cut blank between the dies. The ram forces them together and squeezes the steel into the die cavities; repeat in several dies to form the head step by step.
Mga kailangang kasangkapan:
Bumabagsak na martilyo na may forging die3
3
Trim the flash
Trim the flash
Cut off the flash, the steel squeezed out between the dies, with trimming dies. Cool the head and grind off rough spots.
Mga kailangang kasangkapan:
Mga die na pantabas ng flash
Gilingang pang-mesa4
4
Harden the face, poll and claws
Harden the face, poll and claws
Heat those areas with a flame or an induction coil and cool them quickly, so the steel near the surface becomes much harder than the rest of the head.
Mga kailangang kasangkapan:
Pampainit na induction5
5
Clean and polish
Clean and polish
Shot blast the head (a stream of air carrying small steel particles), paint it if wanted, then polish the face, poll, claws and cheeks. Smooth the V-slot of the claws with an abrasive disc.
Mga kailangang kasangkapan:
Kabinet ng shot blasting
Gulong pampakinis6
6
Turn the handle
Turn the handle
Cut ash or hickory to length and hold it at both ends in the lathe. As it spins, the cutting tool follows a cam with the handle's shape. Cut a slot diagonally across the top and sand the handle smooth.
Mga materyales para sa hakbang na ito:
Kahoy na Matigas Pang-hawakan1 piraso
Papel de Liha1 as requiredMga kailangang kasangkapan:
Lathe ng hawakan na ginagabayan ng cam7
7
Hang the head
Hang the head
Push the handle up through the eye of the head. Tap the wooden wedge into the diagonal slot to spread the handle against the head, then drive two small steel wedges through it crossways.
Mga materyales para sa hakbang na ito:
Kalso ng matigas na kahoy1 piraso
Bakal na pahalang na kalang2 pirasoMga Materyales
5- 1 as requiredPlaceholder
- 1 pirasoPlaceholder
- 1 as requiredPlaceholder
- 1 pirasoPlaceholder
- 2 pirasoPlaceholder
Mga Kinakailangang Kasangkapan
7- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
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