cleaning up after cutting - which discs?

[mike in somerset]

Quick question. After plasma cutting which type of discs do folks tend to use. I have seen 'flap discs' used on small grinder - are these worth a go?
cheers
mike

 

[chunkolini]

I usually go over with a grinding disc then run a flap wheel over it afterwards.
You can do it just using a flap wheel but they are a bit pricey.

 

[Bill Edwards]

Flap disks are much finer and produce a better finish (there are different grits available), but grinding disks remove the bulky material faster and more cheaply.

 

[Wendelspanswick]

I tend to use fibre sanding discs. Although flap wheels last longer, as they are more expensive, I tend to flog them to death, way past the point that they are effective whereas the sanding discs are so cheap that as soon as they stop being effective they get flung.
I also find blending in weld beads easier with a sanding disc as the edge is thinner.

 

[mike in somerset]

Cheers.

 

[waddycall]

Grinding disc then sanding discs. I have a pet hate of flap discs - they wrap themselves around edges and end up rounding things off especially edges of holes and they're expensive.

 

[Kent]

yeah, I like sanding discs of various grades on a backing pad over flap discs. You shouldn't need to hit it with a grinding wheel unless its real rough.

Flap discs are a waste of money unless its for polishing over finer work IMO

 

[skotl]

I start with putting the dross in the vice and just to-and-fro it and that seems to take off most off the cutting slag. Then a bit of grinding afterwards.
But vice first and foremost.

 

[outofthefire]

Every so often I have to do a load of grinding at work and my boss buys me skorpio ceramic flap disks, i've tested all sorts of brands and types of flap disk and although they seem ridiculously expensive (nearly £4 a disk) they work out quite a bit cheaper than ordinary flap disks because they last so long. I still use grinding disks though to get rid of the bulk of the steel.

 

[Shedendman]

Sometimes makes me wonder why not cut with the grinder in the 1st place

 

[Paul G]

The big hand on the clock is to tell you how long it took to cut.
The little hand is to measure the cleaning up time.

Paul G

 

[Mr shiney]

Maybe I am lucky but I do very little clean up when I plasma cut. When I do clean I use a flap disk, takes a few seconds.

 

[skotl]

Maybe I am lucky but I do very little clean up when I plasma cut. When I do clean I use a flap disk, takes a few seconds.

I've found that if I put the dross in the vice after plasma cutting, a quick one/two on the workpiece removes the dross almost in a oner.

Then a quick wash and blow-dry with the grinder.

 

[norlander]

Flap disk, I buy mine from the pro welding supplies he does me a box of 20 mixed 60 and 80 grit, and they work out about 1 euro summat each. Mine last for yonks.Hardly ever use a grinding disk now-but they are much faster, but score the job too much for me.
Sometimes, you can chip the slag off with the ole chipping hammer.

 

[mike in somerset]

Flap disk, I buy mine from the pro welding supplies he does me a box of 20 mixed 60 and 80 grit, and they work out about 1 euro summat each. Mine last for yonks.Hardly ever use a grinding disk now-but they are much faster, but score the job too much for me.
Sometimes, you can chip the slag off with the ole chipping hammer.

Cheers Is that in Doncaster?
mike

 

[KemppiFrog]

Cheers Is that in Doncaster?
mike

Spec Savers for you. Look at where he lives. or are you being ironic, from the (?)

 

[langy]

Every so often I have to do a load of grinding at work and my boss buys me skorpio ceramic flap disks, i've tested all sorts of brands and types of flap disk and although they seem ridiculously expensive (nearly £4 a disk) they work out quite a bit cheaper than ordinary flap disks because they last so long. I still use grinding disks though to get rid of the bulk of the steel.

View attachment 61698

I use the Dronco version and they last 3 times as long as a Kronoflex disc, worth the extra in my opinion.

 

[mike in somerset]

Spec Savers for you. Look at where he lives. or are you being ironic, from the (?)

Hmmm perhaps you can find a "pro welding supplies" in France, but I couldn't!

 

[KemppiFrog]

Hmmm perhaps you can find a "pro welding supplies" in France, but I couldn't!

http://www.laboutiquedusoudeur.com/...bobines-fils/bobine-fil-acier-diametre-300-mm

Not used them yet, but might.

 

[norlander]

sorry-I should have typed pro welding suppliers , what I should have said is try your local trade welding specialist outlet, they may have similar deals.