Cleaning & Finishing Metal Castings In The Hobby Workshop

Every metal casting you produce will require someof machine, the linishing machine is attached to a
kind of finishing operation before it becomes aone horsepower bench grinder, and once you
useful, serviceable casting. Finishing of castings caninstall and use one; you will wonder how you ever
be a laborious job if carried out entirely by hand,did without it.
luckily for the home metal craftsman or womanThey are expensive to buy, but as you do more
(yes. there are a few women who are involved& more castings,you will need a faster
with metal casting) there are a number of very& better finishing system for your castings.
handy tools which can be used to great effect toA very handy linishing belt is the scotch brite belt,
remove flashings, fins, sprues, risers & dags,this belt will give a beautiful finish on any type of
which remain after the casting operation.metal, cast or other wise.
The number one tool in the workshop is a reliableNow, we are not advocating for you to rush out
4" angle grinder, they can be fitted with atomorrow to spend a sqillion on new tools, as
coarse-grained resinoid grinding wheel which arequite a bit of excellent finishing can be achieved
known to remove aluminium, bronze or brasswith normal hand tools.There is not much sense
metal at a rapid rate with out clogging up.inspending a large amount of money if you don't
The 4" angle grinder will also eccept an abrasivehave a great need.
metal cut-off wheel, which is used to cut off theBut you'll know when it's time to buy some good
sprues and risers from bronze or aluminiumpower tools, ifyou don't already own some.
castings. The big 9" angle grinders can also beAnd of course, once you finish with all of the initial
used to cut & grind any large size castings.grindingand cleaning, you may want to give the
Angle grinders big & small can also be fitteditem a high polish.
with the abrasive flap type wheel which are aA calico cloth buffing wheel mounted on your
multi layered grit wheel. Flap wheel finishing willbench grinder,and some special buffing compound
give a very smooth lustrous finish on any type ofwill put a mirror finish onyour unique casting
metal, good quality flap wheels can be expensivecreation.
to buy,they remove metal quickly and will lastAnd don't forget to also buy and wear a pair of
quite a long time, so they are worth the money.eye safety goggles, or wear a full face shield, plus
Another machine metal finishing worth thea pair of thick leather gloves to protect your
expense, is the beltlinishing tool, of which therehands & fingers. Resinoid and abrasive cut
are several different brands available. They areoff wheels throw a huge amount of hot particles
supplied with belts ranging from coarse to fine, aof sharp splinter shaped metal...which could inflict
handy feature of the machine is the ability toVERY serious injury to your eyes and skin.
carry out a quick belt change.Metal craft hobbies can provide a lot of
Finishing and preparation of a number of castingsenjoyment but you need to be careful at the
can be done ina very short time using this typesame time.