ali back chipping tool

[julieanncharters]

doin a lot of ali mig welding and am looking to put together a small back chipping tool with say a 50mm diameter tct blade head for tight spots.
anyone got any advice air or electric?

 

[hotrodder]

Can't really picture what you have in mind as 'tight spots' says die grinder and burrs to me. Use routers on ally occasionally and they kick like a mule if you get it wrong, often chipping or wrecking the cutter in the process. Would need a decent shoe or something to limit the depth of cut which'll obviously make the tool bulkier

A quick google throws out biscuit cutter style blades and 20 tooth saw blades, very different rpms for each type

Can't believe i'm actually suggesting it but... http://www.jmldirect.com/src/froogle/Exakt-Saw-PE2299/ at least as basic inspiration for a blade guard/depth stop

 

[Shox Dr]

Can't believe i'm actually suggesting it but... http://www.jmldirect.com/src/froogle/Exakt-Saw-PE2299/ at least as basic inspiration for a blade guard/depth stop

Neither can I , I like it how they don't show it going around a curve

 

[julieanncharters]

Can't really picture what you have in mind as 'tight spots' says die grinder and burrs to me. Use routers on ally occasionally and they kick like a mule if you get it wrong, often chipping or wrecking the cutter in the process. Would need a decent shoe or something to limit the depth of cut which'll obviously make the tool bulkier

A quick google throws out biscuit cutter style blades and 20 tooth saw blades, very different rpms for each type

Can't believe i'm actually suggesting it but... http://www.jmldirect.com/src/froogle/Exakt-Saw-PE2299/ at least as basic inspiration for a blade guard/depth stop

cheer for reply i,m welding a large ali catamaran.
current back chip tool is a 41/2 grinder with tuff cut tct blade.

its a bit of a beast but does the job.
saw a picture once of long reach air grinder 90degree end with a 50mm tct blade for back chipping .
they must be using biscuit blades as there the only blades i have come across that fit the bill.
its matching one that fits the tool that could be a prob
would be ideal for tight spots between frames.
looks like i'll have to look around and make a custom jobbie.

 

[hotrodder]

Neither can I , I like it how they don't show it going around a curve

It was only because google threw out these blades that i remembered they exist

Julie, several blade styles available that could mounted on a mandrel, biscuit jointers available with a 1/4" mandrel- could possible swap the bearing out for something larger as a depth stop. Some of them like in the first link will be more prone to clogging than others. Biscuit cutters and this style would work with a high speed die grinder, blades for the exactsaw POS would need something a lot slower as would slitting saw blades. Just need a suitable angle head die grinder

In a perfect world would want a negative rake blade to allow dry use with minimal clogging