Casting blow holes

Casting blow holes

This topic has 5 replies, 4 voices, and was last updated 20 August 2021 at 22:55 by ChrisH.

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20 August 2021 at 17:35 #559158
Martin L
Participant
@martinl
What is my best option for dealing with these blow holes in the casting.

I'll end up under size if I carry on cutting.

Thanks for any help.

Link to pic of the casting.

https://i.imgur.com/CnJlKca.jpg
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20 August 2021 at 17:35 #10934
Martin L
Participant
@martinl
Dealing with casting blow holes
20 August 2021 at 17:58 #559164
Brian Wood
Participant
@brianwood45127
Hello Martin,

I don't think they matter that much and will not affect strength

I suggest filling them with a thin mix of epoxy that has cast iron dust mixed in and dress them flat when it is hard. They will then vanish from view after painting

Regards

Brian
20 August 2021 at 20:37 #559183
old mart
Participant
@oldmart
They are very small compared to the casting size, Brian has the best answer.
20 August 2021 at 21:12 #559187
Martin L
Participant
@martinl
Thanks for the info, Brian I will go with your fix thanks, now wondering what the other side has in store.

Martin
20 August 2021 at 22:55 #559198
ChrisH
Participant
@chrish
I'd fill them with JB Weld and then dress them flat as Brians has suggested.

Chris
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