GRINDING..BRASS

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Model T Ford Forum: Forum 2012: GRINDING..BRASS
Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Thursday, December 13, 2012 - 08:54 pm:

brass.windshield.had.a.crack.in.the.end...welder.guy.did.heli-braze.to.it...crac k.looks.fixed.but.i'm.having.trouble.grinding.the.blob.he.left...

as.you.know,.brass.clogs.a.grinding.wheel,.and.this.stuff.is.hard...i.can.use.a. bastard.file.on.the.outside.of.the.tube,.but.the.inside.has.to.be.flush,.too...

mcmaster.has.high.speed.burs.for.the.job... http://www.mcmaster.com/#rotary-files/=kkxx5o

what.do.you.use?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Neil Kaminar on Thursday, December 13, 2012 - 09:06 pm:

Try a Dremal. They have a variety of burrs available. Micromark (http://www.micromark.com) has a variety of small hand files for the finish work.

Neil


Top of pagePrevious messageNext messageBottom of page Link to this message  By Matthew David Maiers on Thursday, December 13, 2012 - 09:23 pm:

yep, carbide burr and a dremel or die grinder, harbor freight might have them, and ive bought them from ace hardware before.

or a rat tail file?


Top of pagePrevious messageNext messageBottom of page Link to this message  By keith g barrier on Thursday, December 13, 2012 - 10:21 pm:

The small sandpaper flap wheels work well on brass or aluminum and can be had in all different sizes and grits. KB


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Friday, December 14, 2012 - 02:58 am:

For those that may be going "Huh?" Some of us that have been around awhile were taught that a special grinding stone is needed for grinding aluminum or brass. The usual ones have a tendency to clog the porous holes in most stones, can get hot, and can under certain conditions explode due to rapid heat expansion and rpm. I haven't seen one of those special stones in a local hardware store in a long time (and at the moment do not remember what they were called). I would imagine they could be found online.
Ralph, I also use a Dremel with a burr cutter. A bit tedious because it likes to jump around to where it should not be cutting, but it does the job.
Drive carefully, and enjoy the Holidays! W2


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Friday, December 14, 2012 - 06:36 am:

i.went.to.hf.yesterday...all.i.found.was.diamond.cutters,.which.clog.like.stone, only.quicker...

micromark.has.a.deal.on.a.set.of.mini-burs,but.a.week.away...i.have.plenty.of.1/ 8.drivers...

i.hate.to.put.a.job.down.1/2.done...

''wifey's.parrot.ate.my.keyboard,.so.i.have.no.space.bar,.etc.,,''


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Friday, December 14, 2012 - 06:57 am:

Ralph did you have a stroke? It looks like a 10 year old texting another 10 year old?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Friday, December 14, 2012 - 07:01 am:

can.you.not.read,royce///

''wifey's.parrot.ate.my.keyboard,.so.i.have.no.space.bar,.etc.,,new.one.enroute' '


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ronnie Wehba on Friday, December 14, 2012 - 07:32 am:

get a tiger disc from a welding supply for brass works great


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Manuel, Lafayette, La. on Friday, December 14, 2012 - 10:02 am:

SAIT and others offer burrs specifically for non-ferrous metals.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Friday, December 14, 2012 - 03:08 pm:

Ralph,
I am just glad you did not disappear. Struggle on against adversity!


Top of pagePrevious messageNext messageBottom of page Link to this message  By David Chantrell - Adelaide, Australia on Friday, December 14, 2012 - 05:57 pm:

Use a silicon oxide grinding wheel that is green in colour, not gray. It has a softer bonding adhesive designed to allow the granules to break away to stop clogging. Green grinding wheels are for non-ferrous metals.

I am a toolmaker by trade, as are many on this forum. In every toolroom I have ever worked in it is punishable by death if anybody (including an apprentice) ever grinds non-ferrous on an incorrect wheel.

Bunning’s, Mitre 10, Stratco etcetera and other hardware stores all have them for sale, look for the green colour.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ken Kopsky, Lytle TX on Friday, December 14, 2012 - 07:46 pm:

LOL... Amen David. I had to label all my grinding wheels/grinders for the B.I.L. so he doesn't sharpen lawn mower blades on my green wheels. :-) I don't let him near the tool grinder at all.

In lew of green wheels for hand tools, I've had pretty good success using a 4 1/2" hand held grinder with flap disks or a 3" cutoff tool. For fine work, I use a Dremel with a cutting disk. The trick is to let the abrasive do the work and don't force it into the brass. If it does clog a little, touch it to a piece of scrap steel.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Friday, December 14, 2012 - 09:04 pm:

It was easier than I thought... Found the dremel display at HomeDebt, and a new item was a pair of Robert Bosch 5/16" burs for $10. A flex cable at 10k rpm did the job, and the windshield tube end cleaned up pretty good on the 8" buffing wheel.

Neither Ace nor HF had burs.

This was educational. Thanks, guys.

BTW, it took a little re-training to get back to using the space bar on the refurb keyboard... Of course, I often have to be retrained after coffee break.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ricks - Surf City on Friday, December 14, 2012 - 09:12 pm:

I wonder now if Shirley the welder guy has a smaller rod for the heli-brazing. The speedo backshell has several cracks around the front edge. Will be checking with him on that.


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