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tech / sci.engr.joining.welding / latest

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 9 Days 9 Hours ago by: Jim Wilkins

"Mike Spencer" wrote in message news:87bkw3v2tc.fsf@bogus.nodomain.nowhere... But I haven't seen them as angle grinder wheels. ----------- You have to know the right incantation to invoke Internet magic. "Deburring disc" returns this:

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 1 Hour ago by: Bob La Londe

I tried a couple methods of dressing the flap disc. It would improve slightly but not for very long. 5 seconds of work maybe. I already have the flap disc so I figured I'd see if I could improve their usefulness first before trying

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 3 Hours ago by: Jim Wilkins

"David Billington" wrote in message news:t5j7jn$nn5$1@dont-email.me... The Osborn Dronco 4.5" (115mm) ones I have use the standard 7/8" (22.23mm) angle grinder mounting and are rated at 11,000 RPM max so suitable for use on my 4.5" Bosch

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 4 Hours ago by: David Billington

The Osborn Dronco 4.5" (115mm) ones I have use the standard 7/8" (22.23mm) angle grinder mounting and are rated at 11,000 RPM max so suitable for use on my 4.5" Bosch grinder. The only minor issue I find is due to the depth of the fleec

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 8 Hours ago by: Jim Wilkins

"Mike Spencer" wrote in message news:87bkw3v2tc.fsf@bogus.nodomain.nowhere... "Jim Wilkins" <muratlanne@gmail.com> writes: I've used bead blasting for forged ornamental work but, where possible, I prefer phosphoric acid pickle. Probab

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 11 Hours ago by: Richard Smith

I think I know what you and Bob are saying. Answer is - sorry - don't know. With a "hard" side-grinding disk - an angle-grinder "carborundum" disk - if it gets blunt and clogged from lightly skimming over big-area flat surfaces, you ca

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 16 Hours ago by: Mike Spencer

I've been using these for many years, first noticed when B&D started selling a consumer version in the 70s, later same product from 3M and Germany. They're the only thing that will remove mill scale without gouging the metal. But I hav

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 17 Hours ago by: Bob Engelhardt

I thought that flap discs worked by having the used-up edges wear away and expose new grit. But that never happens for me. The various things that I've tried to expose new grit have never worked. So either I'm missing something or the

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 20 Hours ago by: Clifford Heath

Except it doesn't. You need chemical treatment as well, as I'm sure you know. Metal is crystalline, and some rust will always penetrate into pores finer than any blasting sand. Clifford Heath.

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 20 Hours ago by: Clifford Heath

I can't recommend a product, but my experience suggests that the rapid deterioration has more to do with the quality of the adhesives used to attach the grit than it does with the grit itself. The bigger sharper particles of grit simpl

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 21 Hours ago by: Snag

Lit the bag on fire , half full of sawdust . Ooops .

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 21 Hours ago by: Jim Wilkins

"Snag" wrote in message news:t5h6df$n32$1@dont-email.me... If it has a dust bag , remove it and tape over the outlet . I learned the exciting way ... -------------------------- I burn sawdust from the sawmill as part of the kindling in

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 22 Hours ago by: Jim Wilkins

"Bob La Londe" wrote in message news:t5gtfi$drc$1@gioia.aioe.org... On 5/11/2022 10:23 AM, Jim Wilkins wrote: I had not thought of that. I have one around somewhere, but have not used it since my last cabinet building project a few yea

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 22 Hours ago by: Bob La Londe

Did you ignite a bag of sawdust or shoot sparks down your shirt? Either way it sounds exciting. Did you by any chance get video?

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 10 Days 23 Hours ago by: Snag

If it has a dust bag , remove it and tape over the outlet . I learned the exciting way ...

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 1 Hour ago by: David Billington

In my experience they deal with the mill scale on box section I've cleaned up very well.

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 1 Hour ago by: Bob La Londe

I looked at that. I've seen those type of wheels before. How well does it work on mill scale.

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 1 Hour ago by: Bob La Londe

I had not thought of that. I have one around somewhere, but have not used it since my last cabinet building project a few years ago.

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 2 Hours ago by: Jim Wilkins

"David Billington" wrote in message news:t5gnp1$71v$1@dont-email.me... I know what you're experiencing with flap discs and have used this type of disc to good effect https://www.weldequip.com/cleaning-fleece-115mm.htm . I've seen many of

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 2 Hours ago by: Jim Wilkins

"Bob La Londe" wrote in message news:t5gles$nd7$1@gioia.aioe.org... Sans the solution I am looking for is there a better disc for stripping metal than an abbrasive flap disc? I can do the work with a grinding wheel, but its much more ski

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 2 Hours ago by: Bob La Londe

You know I filtered the sub threads where you went off on your own little childish temper tantrums, but I didn't filter you entirely. I figured once you got over your nasty little snit you would start to act like an adult again. I

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 3 Hours ago by: Cydrome Leader

[boring crap trimmed] So OP wants help finding a better type of flap disc, but never mentions the type they're using now.

Re: Getting More First Minutes Out of A Flap Disc (thread)

rec.crafts.metalworking

Posted: 11 Days 3 Hours ago by: David Billington

I know what you're experiencing with flap discs and have used this type of disc to good effect https://www.weldequip.com/cleaning-fleece-115mm.htm . I've seen many of this type for sale on ebay and most don't have a high enough speed r

Getting More First Minutes Out of A Flap Disc

rec.crafts.metalworking

Posted: 11 Days 4 Hours ago by: Bob La Londe

Yesterday I found myself cleaning up a bit of square tube in preparation for welding and later paint. It was outside, but in SW Arizona, that just means it has developed a small amount of protective rust over the mill scale. I started

Re: What is my older Lincoln 225 worth?

sci.engr.joining.welding

Posted: 27 Days 16 Hours ago by: polytechforum.com

&gt; Perplexed wrote: &gt; &gt; &gt; Thank you. I'm on the S. OR coast. I really appreciate you guys &gt; responding to &gt; this. It all belonged to my late husband and I'm clueless, but I want &gt; to ask a &gt; fair market price fo

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