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Coremaking
Hi John Thanks for your response. I am with an Aluminium Diecasting Foundry and we manufacture cylinder heads and intake manifolds. I have to agree with you when the compression strength has little relevance to it's functional bend strength. I have also been informed that the core does not...- taila
- Post #3
- Forum: ASTM (testing materials) Code Issues
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Coremaking
What is the relationship between the compression strength of the sand core and it's breaking strength during casting.I am doing compression testing on silica sand cores made from cold boxes and I'm not sure if the results obtained can be used to determine if the core will not break during...- taila
- Thread
- Replies: 3
- Forum: ASTM (testing materials) Code Issues
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Aluminium Casting ( Solidification Defect or not?)
I am working in an aluminium pressure die casting using reclaimed silica sand for coremaking.We manufacture cylinder heads.Recently we've been getting cracks on the inner edge of the boss area.Visual examination revealed no foreign particles and microscopic evaluation revealed large shrinkage...- taila
- Thread
- Replies: 2
- Forum: Metal and Metallurgy engineering
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Lower mechanical properties
I am working in an Auminium Pressure Diecasting.We Manufacture cylinder heads from an AlSi9Cu alloy. Recently we've been getting a lot of cracks on the inner edge of the boss area.They seem to be solidification cracks resulting from hot cracking.The problem is our dies and molten metal are...- taila
- Post #5
- Forum: Metal and Metallurgy engineering
