About half of all aluminium castings are made using high-pressure die-casting (HPDC), in which a molten aluminium alloy is injected under pressure into a steel mould, or die.
大约有一半的铸铝工艺是高压模铸(HPDC)，在这种工艺中，通过压力将液态铝合金注入钢模，或模具。
2
One half of the negative mould and the 'inside of the crankcase' mounted.
其中一半的负面模具和'内的曲轴箱'展开。
3
Thee difficult part about the milling is that you will have to do this also in the other half of the mould and there everything should be mirrored.