The Shop > Metal Stuff

Beating steel into submission (moulding flasks)

(1/6) > >>

Rob.Wilson:
Hi Lads  :wave:

One thing has always bugged me about my foundry set up and that was the moulding flasks made form wood ,, they burn when you spill molten metal on them  ::) , warp and generally fall to bits after a wile ,,,,,,,,,, so time for some steel flasks  :) ,, last week i had eight  lengths of 1/8" x 4"  steel given ,, all about 110" long ,,,,,,, just the job me thinks to make some flasks from .

Then i thought i need a bead up the lengths of steel ,so that the sand would grip to ,  as this it a one off job i knocked up a ruff and ready press tool from bit of off cuts .



dragged my shop built press into the middle of the shop and fed the lengths of steel through the press 6" at a time



When all were done ,, they were cut into 65" lengths , then all the off cuts were welded together and cut to 65" ,, this gave me enough for 6 set of flasks 12"x16".
next came the bending ,, so i removed the large vice from my welding bench and tac welded 4 lengths of round bar to it ,  for the bending jig .

The lengths were then bent round the jig ,heating the bends with oxy gear






Then after they were all bent up , the over lap was trimmed off and welded up


Due to the welding and bending they had a bit of a warp in them .

easy fix , stuck a shim under the one of the high corners , this is to allow for the bit spring back ,

plonk a bit weight on the offending corners , and heat the other to .




Next was to make sure they are truly flat , as some metal on the corners get raised due to hammering on the bends , a bit grinding took care of that using one of my ally core plates as a reference.
 


Then they were paired up ,cos they aint all the same ,,,,,,,,,,, the ones i did with a hangover are slightly different  :doh:


Handel's and pins to follow

Rob
 

Bluechip:
Strewth ....

You ain't half into grunty stuff ...  :bugeye:

Must cost a fortune in Weetabix ...

Ah well, back to me bit of 1/8" ally .... 

If I can manage it ..

Dave BC



 

dsquire:
Rob

When you get serious you don't mess around do you? Those flasks should last you a life time as well as pay for themselves in short order. Great job Rob and thanks for sharing it with us.  :ddb: :ddb: :ddb:

Cheers  :beer:

Don

sbwhart:
Give that lad a coconut

 :headbang: :headbang: :headbang: :headbang:


Great bit of bashing Rob.

Stew

Gerhard Olivier:
Rob every time I think ive seen the extent of your talents you amaze me again!!!!!!
 :bow: :bow::bow:

Gerhard

Navigation

[0] Message Index

[#] Next page