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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.
中级
Half a day
说明
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.
此步骤所需材料：
铜锭200 克
水10 升所需工具：
丙烷喷灯
耐火砖
铁匠钳
淬火水桶
安全眼镜2
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.
所需工具：
铁砧
横向楔头锤
皮革工作手套3
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.
所需工具：
丙烷喷灯铁匠钳淬火水桶4
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.
此步骤所需材料：
醋0.5 升
盐10 克所需工具：
碗
钢丝刷套装5
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.
所需工具：
圆头锤铁砧
6 英寸数显卡尺6
6
Trim
Trim
Anneal a last time if it must be bent later. Trim the cracked edges with snips and file them.
所需工具：
铁皮剪
锉刀套装7
7
Troubleshooting
Troubleshooting
Forging copper troubleshooting.
Flow
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