Question on Metal moulds for knife handles

Hi Guys,

I am posting a question here in the hope someone may have experience or knowledge of the following.

I am interested in casting some aluminium around the tang of a self made knife to create a handle. I know this can be done as it is a production technique to speed the mass production of commercially made knives.

There are 2 piece metallic moulds clamped around the tang as the knife is held vertically and the pour completed from the top of the tang end.

The question regards the material type of the 2 piece moulds.On the video it looks to be an aluminium colour .I realise it could not be that as the molten metal would melt the mould of the same material. Is there a similar alloy with a higher melting temperature suitable to make the mould from.

The mould material is reminiscent of fishing sinker mould metal.

I am seeking something like that to reduce the work in cutting the shape of the mould.

Heres the video, the casting happens at around 4.14 minutes.

https://www.youtube.com/watch?v=lBKnLe7tYmU

And a couple of screen shots to see the shape and colour of the mould materials. 2 piece moulds 1.jpg Cast mould 2.jpg
Attached Images

• Cast mould 2.jpg (22.1 KB)
• 2 piece moulds 1.jpg (83.9 KB)

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