SENI
KECANTIKAN & KESEJAHTERAAN
KRAFTANGAN
BUDAYA & SEJARAH
HIBURAN
ALAM SEKITAR
MAKANAN & MINUMAN
KEJURUTERAAN TERBALIK
SAINS
SUKAN
TEKNOLOGI
BOLEH PAKAI
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.
Lanjutan
Factory process
Arahan
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.
Bahan untuk langkah ini:
Bar keluli alat segi empat sama1 as requiredAlatan diperlukan:
Pemanas aruhan2
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.
Alatan diperlukan:
Tukul jatuh dengan dai tempa3
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.
Alatan diperlukan:
Dai penanggal sirip
Pengisar meja4
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.
Alatan diperlukan:
Pemanas aruhan5
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.
Alatan diperlukan:
Kabinet letupan syot
Roda penggilap6
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.
Bahan untuk langkah ini:
Batang Kayu Keras untuk Hulu1 kepingAlatan diperlukan:
Mesin larik pemegang berpandu sesondol
Kertas Pasir7
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.
Bahan untuk langkah ini:
Pasak kayu keras1 keping
Baji silang keluli2 kepingBahan
4- 1 as requiredPemegang Tempat
- 1 kepingPemegang Tempat
- 1 kepingPemegang Tempat
- 2 kepingPemegang Tempat
Alatan Diperlukan
8- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
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