Pietenpol-List: cutting 4130

matronics · Post by **matronics** » Tue Apr 29, 2003 5:58 pm

Original Posted By: "Ted Brousseau"
I noticed a post about cutting 4130 tubing with a wood band saw... Another wayis to use a plumbers tubing cutter.... Although they're meant for copper orsteel pipe, they do work on 4130 tube. You may ned to replace the cutter wheeloccasionally but it's mess free and saves a lot of space in the shop. Thethicker wall stuff gets pretty tough though....For what it's worth.Tom Brant, Minneapolis________________________________________________________________________________

matronics · Post by **matronics** » Fri Aug 08, 2003 11:59 am

Original Posted By: "DJ Vegh"
There is been recent discussion about not brazing 4130. This brings up somemore questions. How about cutting? Is a plazma cutter acceptable?How about milling? Should 4130 be annealed after being worked? Is there abook related to aircraft metal working practices available. Sorry for askingsuch simplistic questions but you gotta start somewhere.Thanks,Bob B. - Missouri________________________________________________________________________________

matronics · Post by **matronics** » Fri Aug 08, 2003 12:26 pm

Original Posted By: baileys
I would think the next best thing to lasercutting would be plasma cutting.There has been discussion before about filing the hardened edge created after lasercuttingas it is prone to cracking and I would assume the same would be donefor plasma cutting.I also hear it's a good idea to re-normalize the parts after cutting. As I recallthat is done by baking them at 500 degrees for 24 hours.DJ Vegh ----- Original Message -----

matronics · Post by **matronics** » Fri Aug 08, 2003 12:32 pm

Original Posted By: ""

matronics · Post by **matronics** » Fri Aug 08, 2003 4:47 pm

Original Posted By: Jim Ash

matronics · Post by **matronics** » Fri Aug 08, 2003 5:41 pm

Original Posted By: "Steve Eldredge"

matronics · Post by **matronics** » Fri Aug 08, 2003 5:50 pm

Original Posted By: ""

matronics · Post by **matronics** » Fri Aug 08, 2003 9:24 pm

Original Posted By: "baileys"
I've used a simple plumbers tubing cutter - gotta have a good one though.This takes a bit more effort than cutting copper and you might go through afew cutting wheels but it's a cheap and easy way to make straight cuts. Amotorized unit is better yet but spendy.Tom B.----- Original Message -----

matronics · Post by **matronics** » Fri Aug 08, 2003 10:33 pm

Original Posted By: "baileys"
Bob B.If you do not have Richard Finch's book on welding, I highly recommend it.He was a welding inspector at atomic plantsAlex Sloan----- Original Message -----

matronics · Post by **matronics** » Sat Aug 09, 2003 5:37 am

Original Posted By: dpilot

matronics · Post by **matronics** » Sat Aug 09, 2003 6:15 am

Original Posted By: "Alex Sloan"
Alex,I found two books by Finch, is Performance Welding the one you are referringto?Thanks,Bob B.----- Original Message -----

matronics · Post by **matronics** » Sat Aug 09, 2003 9:29 pm

Original Posted By: "Jim Ash"
Jim,I read that in his welding book.Alex Sloan----- Original Message -----

matronics · Post by **matronics** » Sat Aug 09, 2003 9:33 pm

Original Posted By: "baileys"
Bob B..The Richard Finch book I have is the completely revised and updated WeldersHandbook. A complete guide to mig, tig, arc & oxyacetylene welding.Revised edition 1997.I bought it at Lowe's.Alex Sloan----- Original Message -----

matronics · Post by **matronics** » Sat Aug 09, 2003 10:55 pm

Original Posted By: Doc Mosher

matronics · Post by **matronics** » Sun Aug 10, 2003 12:19 am

Original Posted By:
Subject: Re: Pietenpol-List: cutting 4130In a message dated 8/9/03 9:31:39 PM Central Daylight Time, alexms1(at)bellsouth.net writes:>I also have this book, and highly recomend it for anyone doing any type of welding.Chuck Gantzer________________________________________________________________________________

matronics · Post by **matronics** » Sun Aug 10, 2003 9:32 am

Original Posted By: "Doc Mosher"
Check out:http://www.redbetsy.com/start.htmlLots of background on the movie but nothing on the specifics of theairplane.Airplane shots were filmed at a private strip in Oconomowoc, WI.Greg Cardinal in Minneapolis----- Original Message -----

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