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Copper Sheet Forged from Cast Copper
Copper is soft and can be hammered thin cold, but every blow hardens it until it cracks. Heating it to a dull red anneals it soft again; unlike steel, copper can be quenched straight away without hardening. Hammer, anneal, repeat: that is how sheet was made before rolling mills.
It starts from a cast piece of smelted copper. A rolling mill does the same job faster; the hammer needs nothing but an anvil.
Menengah
Half a day
Instruksi
1
1
Anneal the casting
Anneal the casting
Set the copper on fire bricks and heat it with the torch to a dull red, seen in shade. Pick it up with tongs and quench it in water.
Material untuk langkah ini:
Batangan Tembaga200 g
Air10 literAlat yang dibutuhkan:
Obor Propana
Bata tahan api
Tang pandai besi
Ember pendingin tempa
Kacamata pengaman2
2
Spread it
Spread it
On the anvil, strike overlapping blows with the cross peen in one direction, then the other, to spread the copper. Turn it over often.
Alat yang dibutuhkan:
Landasan Tempa
Palu kepala baji melintang
Sarung Tangan Kerja Kulit3
3
Anneal when it stiffens
Anneal when it stiffens
When the copper rings and stops moving under the hammer, anneal it again as in step 1. Expect to anneal many times.
Alat yang dibutuhkan:
Obor Propana
Tang pandai besi
Ember pendingin tempa4
4
Clean the scale
Clean the scale
Soak it in a bowl of vinegar with a spoon of salt until the black scale loosens, then scrub it bright with the wire brush and rinse.
Material untuk langkah ini:
Cuka0.5 liter
Garam10 gAlat yang dibutuhkan:
Mangkuk
Set sikat kawat5
5
Planish flat
Planish flat
Planish the sheet smooth with light, overlapping blows of the ball peen's flat face, checking the thickness with the caliper.
Alat yang dibutuhkan:
Palu kepala bulat
Landasan Tempa
Jangka Sorong Digital 6 Inci6
6
Trim
Trim
Anneal a last time if it must be bent later. Trim the cracked edges with snips and file them.
Alat yang dibutuhkan:
Gunting seng
Set Kikir7
7
Troubleshooting
Troubleshooting
Forging copper troubleshooting.
Flow
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Bahan
4- 200 gPlaceholder
- 10 literPlaceholder
- 0.5 literPlaceholder
- 10 gPlaceholder
Alat yang Diperlukan
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