Boreweld 60-45-12 ductile iron

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I think I'm gonna need denrep's help with video here or something...Tried to post up video of borewelding 60-45-12 ductile iron with several different filters for viewing. The first without filter is out in cyberspace somewhere...The second with #10 green is below. Parameters are E70-S3 filler, 175IPM, 21V, Co2+O and torch travel about 18IPM. After Welding the part gets an adjustment at 1600F for a poor attitude. It gets a furnace quench and hold to try and get some of the ductile properties back (keepin' that to myself).I'm seeing less of these in recently years as there is a new part from China solution (the I couldn't keep up part didn't help much either!). Anyway it's low res, you can see the arc and the strange sound with the graphite moving to the edges.Matt[ame]http://www.youtube.com/watch?v=jxGSNmZcrlw[/ame]
Reply:I forgot, skip to the middle to see just the puddle trail, very sluggush at 180AI'll post up more when I figure out what I'm doin'. The no filter and the polarized #8 give different looks.Matt
Reply:Hey that was dern good quality video. Thanks. A good exercise in watching the puddle.  "The things that will destroy America are prosperity at any price, peace at any price, safety first instead of duty first, the love of soft living and the get rich quick theory of life." -Theodore Roosevelt
Reply:Originally Posted by SandyHey that was dern good quality video. Thanks. A good exercise in watching the puddle.
Reply:The video quality is really good with the filter. Are you using a screw on filter or just holding one in front of the camera?
Reply:Originally Posted by Matt_MaguireThanks sandy, the camera is a 10 year old miniDV. Yesterday I tried to do some vids with with a new even more "flock 'o dials and knobs".I'm not sure what in the wide wide world of sports went wrong, but the vids were SCRAP!Matt
Reply:Originally Posted by forhireThe video quality is really good with the filter. Are you using a screw on filter or just holding one in front of the camera?
Reply:Great video Matt, Thanks!6 Miller Big Blue 600 Air Paks2 Miller 400D6 Lincoln LN-25's4 Miller Xtreme 12VS2 Miller Dimension 812 4 Climax BW-3000Z bore welders Hypertherm 65 and 85Bug-O Track BugPair of Welpers
Reply:Originally Posted by SandyWell that section on the weld bead itself was about as clear as I've seen in a while. You can see the wire, the puddle and even the slag (in this case a minute skin) rolling up and in behind the puddle. I don't think many hobby welders see much more than the bright glow sometimes. It's good enough to be a training video.
Reply:That is a great video. I could see the welding process better in your video than in my helmet. That is quite a setup, I assume you designed it in house. I understand the positioner part, but is the torch being raised separately or is it somehow working off the positioner? If this is a trade secret, forget I asked. The video was very enlightening.
Reply:Looks interesting. I'm curious about how hard it is to machine even after the furnace run. I sure wouldn't want to try without putting it in a furnace.Millermatic 252XMT 304'sDynasty 280DXHypertherm PowerMax 1250Miller Trailblazer 302 EFIOptima PulserXR feeder and XR Edge gun and more athttp://members.dslextreme.com/users/waynecook/index.htm
Reply:Originally Posted by irish fixitLooks interesting. I'm curious about how hard it is to machine even after the furnace run. I sure wouldn't want to try without putting it in a furnace.
Reply:Originally Posted by Matt_MaguireIt machines pretty well, depending on the surface footage when cutting you can produce from bright silver to blue chips. The hardness is around 40-45 RC.They could be softened more with a furnace hold at just below 1100F but that would also screw up the "ductile" properties of the part itself more than they already are.Every time this is done they get softer in the bore as there is less carbon to bring up into the weld, after 3 or 4 rewelds it's more like cutting 1010 which makes finish cutting problematic.Without some time at 1600F or above the hard carbides make machining all but impossible.Matt
Reply:I figured I'd update and show the machining of the boreweld after welding and a little thermal treatment. The machine is a DeVlieg 2B Jigmil and the tooling used is homebuilt (old school). It is edited down from about 40 minutes to a little over 6 and includes the second rough cut bore, a light cut and the finish boring. It also shows the machining of the inside faces, one having been welded (also with E70 filler).Below is a picture of the chips after rough boring, usually the bore is about 1 9/16" after welding and finishes at 1 3/4". A second pic shows 4 parts ready (enough for one tamping machine). Paint would be a very expensive option when requested (not many requests).Matt Attached Images
Reply:Follow my own post, I thought maybe the original author could also update the thread title? It didn't take my edit or I screwed up?Matt