O/T brush deburring ??

[MACHINEMASTERG]

anyone using nylon type abrasive brushes for deburring ???i run alot of aluminum casting and have been playing around with them for deburring in the machine ...if so what do you use any tips or tricks

 

thanks

[specv]

We tried using these and they work pretty well, I guess i dont have any tips other than make sure you dont run them too fast speed-wise, and also make sure you use a lot of coolant. If you dont use coolant you will have a residue left on the aluminum that is very hard to remove.

most brushes (when spun fast will shorten up due to centrifugal force) so make sure you keep that in mind when programming them. other than that they do the job.

 

Pete

[Guest CNC Apps Guy 1]

quote:

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anyone using nylon type abrasive brushes for deburring ???

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Greg,

 

I do in our Pallet Pool System. Man, it's the greatest thing since sliced bread. I generally run the 3" at 500 RPM at 100 IPM. The finish is outstanding. It's actually pretty close to what we need it for the annodize that gets applied. The deburr people usually only have to touch a spot or two that I cannot reach with it. I would never think of not using it. It only costs aon average 2-3 minutes per part of cycle time which is a savings of about 5 minutes per part compared to what deburr used to take. I also Chamfer/Edge Break of .003" - .005" which the operator's like because they don't get all cut up.

 

Oh, we use Brush Research.

 

JM2C

 

HTH

[MACHINEMASTERG]

thanks ...anyone else ???i was running a little to fast 1600 rpms i slowed it down an found it works better !!! any other supplers... im using osborn out of the msc catalog ill look up brush research james

[MetalMarvels]

I am using the Osborn brushes also and I have found that they do a very good job on complex galleries or heatsinks. I run mine at about 380 rpm and 100 IPM with full-flood coolant. I usually set it for about 1/8 inch of engagement at speed. No coolant or high rpms will melt them.

 

[ 11-13-2003, 07:33 PM: Message edited by: MetalMarvels ]

[Scott Bond]

Good Morning

Do any of you guys use a brush on the top of a flat surface?

I have some 60" x 80" aluminum plates that

get hundreds of .125 wide x.125 deep grooves .

I would like to try one of there cup brushes on the top (flat) surface to slightly break the top edge.

Scott

[Eric S.]

Hi

 

I have never seen abrasive brushes for deburring used in a cnc. I am curious about this... does the abrasive particles not get into your coolant? or are you not worried about it sanding the ways?

 

Eric

[MetalMarvels]

http://www.osborn.com/

 

I am using P/N 40213 and 40212 with a CNC holder (3-inch wide ATB Composite Disc Brush - Max Density). I haven't seen any problems with the use to date. It does not have the potential for "loose" grit like a flap sander does.

[MACHINEMASTERG]

this is our first time tring this and it works great i was going to fast at first with no coolant but made changes.. will be doing alot more of this all i can say scott is try it you will like it

[mmonica]

We use Weiler Nylox brand of brushes in our pallet pool machining center. Each machine has a 3" and 1" brush as standard tools. I run them between 500 and 900 RPM and between 50 and 100 IPM. Weiler suggested I run the spindle CW and CCW over the same tool path. It does a great job on cast aluminum. The downside, they do wear. The brush must be engaged 1/8" to 1/4" in the "cut". You must keep on top of the wear or the brush will be ineffective.

[Scott Bond]

quote:

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all i can say scott is try it you will like it

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I ordered a 3" cup brush, and I will try it .