how do i make the i.d. of a tube steel bigger (aside from the obvious)

admin

hey now.i need to take a 1/16 of an inch off of 1020 tube steel that is 1" (o.d.) x .065 (wall) x .884 (i.d.)and about 8"-10" long.i own a 12" delta drill press (dp300) and thought about getting a drill bit to match what the total i.d. i want to end up with and drill it out but wasnt sure if there was a better way to go about this.thanks in advance guys.and if your curious im brazing part of a magazine tube onto a remington 870 shotgun. it kinda  got warped up (dont ask) and i had to take part of it off. its not like a mossberg 500 where they just screw in.the grand ol' opry aint so grand anymoremiller maxstar 150sworking on an oxy/acet set up
Reply:Drill bit probably won't work well. A lathe would be the way to go, with a boring bar most likely. It might be possible to do it with a reamer, and an adjustable one might work best so you can do this a bit at a time to try and stay concentric.Or just buy the part you F'd up and replace the whole thing and be done with it..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:i got the metal for $5....actually its kinda just been sitting here i dont even remember when i got it.the part from rem is more than 10x that...if i spent $50 on a bit to do this (which im not gonna but just using it as a point) id still save money. besides im not at a huge loss if i mess up the part that id be enlarging because like i said, its tube steel that ive had for a whilethe grand ol' opry aint so grand anymoremiller maxstar 150sworking on an oxy/acet set up
Reply:I'd run it down to the local machine shop.  I bet they'd do it for under $75.00. And they would do it right..............
Reply:The tube wall is too thin for you to be able to drill it out. The drill bit willjust grab and you will destroy the piece. It has to be bored out in a machine shop like ezrider said. You won't be capable of holding the piece rigid enough without crushing it. Some tasks are better left to a proffesional.
Reply:Originally Posted by outlawskinnydhey now.i need to take a 1/16 of an inch off of 1020 tube steel that is 1" (o.d.) x .065 (wall) x .884 (i.d.). . .
Reply:Originally Posted by EZRiderI'd run it down to the local machine shop.  I bet they'd do it for under $75.00. And they would do it right..............
Reply:Just buy the right size tubing . . . McMaster-Carr sells 1" tubing in .035 and .028 wall . . . http://www.mcmaster.com/#steel-tubing/=bv6iq6also available in 4130 . . . http://www.mcmaster.com/#=bv6lc4-jimLast edited by 4sfed; 04-13-2011 at 11:09 PM.Dynasty 300DXSmith He/Ar gas mixerMM350PHobart Handler 120Smith LW7, MW5, AW1A
Reply:Originally Posted by Pro-Fab Some tasks are better left to a proffesional.
Reply:Originally Posted by 4sfedJust buy the right size tubing . . . McMaster-Carr sells 1" tubing in .035 and .028 wall . . . http://www.mcmaster.com/#steel-tubing/=bv6iq6also available in 4130 . . . http://www.mcmaster.com/#=bv6lc4-jim
Reply:Fill with waterCapFreeze
Reply:Originally Posted by outlawskinnydtaking a look right now...6' is way way more than i need. i dont see anything for it offered in 1' or 2' sizes
Reply:Originally Posted by 4sfedYeah, but it's still cheaper than having someone machine the piece you have.  I promise you that boring a .93 diameter hole 12 inches deep will cost more than $30.
Reply:Originally Posted by denrepFill with waterCapFreeze
Reply:Get the real part at Numrich Arms and silver solder it in.Miller Syncrowave 350Millermatic 252/ 30A spoolgunMiller Bobcat 225g w/ 3545 spoolgunLincoln PowerArc4000Lincoln 175 Mig  Lincoln 135 Mig Everlast 250EX TigCentury ac/dc 230 amp stickVictor O/AHypertherm 1000 plasma
Reply:Originally Posted by DougAustinTXGet the real part at Numrich Arms and silver solder it in.
Reply:I just bought a recoil spring tube for a Remington 1100 at Numrich and silver soldered it into the receiver; however I went to the Numrich site and looked at the exploded view of the 870 and you are correct.  The mag tube is listed as part of the receiver. BTW, I saw this advice on a website called thehighroad.org:"dfariswheelDecember 29, 2006, 01:46 PMThe magazine tube is not a user replaceable part, and it's not a good idea to allow a local gunsmith to attempt it either.It's brazed in place with a special high-temp brazing compound.Since the tube absolutely MUST be perfectly aligned and positioned, replacement is considered to be a factory ONLY job.If the new tube is misaligned even slightly, the barrel will not assemble to the receiver properly.At the factory, the receiver is totally stripped of ALL parts, including the shell releases and the entire ejector assemble.The old tube is removed by heating the receiver until it can be removed, and the receiver cleaned of all the old braze.A special alignment jig is attached and used to align and position the new tube absolutely perfectly with the receiver, and the entire assembly is put in a special electric furnace to re-braze the new tube in place.After brazing, the shell releases and ejector assembly are installed and the receiver is refinished.Due to the near impossibility of getting the new tube perfectly aligned in the receiver without the special assembly jig, and the need to totally refinish the receiver, this is best sent in to Remington to insure a quality job.They do a perfect job and usually at as good a price as any local 'smith will."So this sounds like a big job to me.Miller Syncrowave 350Millermatic 252/ 30A spoolgunMiller Bobcat 225g w/ 3545 spoolgunLincoln PowerArc4000Lincoln 175 Mig  Lincoln 135 Mig Everlast 250EX TigCentury ac/dc 230 amp stickVictor O/AHypertherm 1000 plasma
Reply:While I certainly agree with buying new or letting a machine shop use a line borer/boring bar.....As to not being able to hold it without crushing it... sometimes one can cast things  in plaster and provide that support and ability to hold it...Weldandpower Lincoln 225 AC,DC with Briggs 16hp gas engine.WW2 era Miller TIG.
Reply:Try using a mandrel expander or maybe a drift and heat to expand it.
Reply:Originally Posted by ironmangqTry using a mandrel expander or maybe a drift and heat to expand it.
Reply:Whatever you do, don't l\make the i.d.bigger than the o.d., otherwise the hole will be on the outside!"One of the things we have to be thankful for is that we don't get as much government as we pay for." (Charles Kettering)Mitch 180 (NZ)Lincoln SAM-400-220 + ?-400 Fordson Major + 2 x Tractapac Humber 80 + Procut 40 PlasmaMiller Spectrum 375