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Since the original post got The 502 Bad Gateway disease I guess ill start overThe bucket i started is now on hold... I cut the old busted floor out of it and the owner thinks he can get a brand new bucket cheaper than rebuilding the old one....I dont know if he is right on that thinkin or not...right now what hes got is uselessSo tomorrow me and Joes young lad are gonna come up with a plan for the moldboard or frog as some call it. The young lad woukld like to use some 1 1/4 inch AR plate we have at the shop, Im sure i can use that my only question is drilling the holes, Ive never drilled holes in AR plate before, Ive got a mag drill that i can use Hogan bits with, will the gold colored titanium bits drill ar plate or is their better bits available? Maybe cobalt bits? What I have done is cut them with a torch and ream em with an end grinder but Tyler (Joes young lad) would rather drill them if possibleAny thoughts from you folks that might have tried it would be appreciated
This is what we will be workin on
Reply:Dont know the answer but Im following along to see what the answer is. I used to make my own sod harvester blades and used an iron worker for the holes but they were only 5/16 diameter through 1/8AR. Sent from my iPad using Tapatalk:
Reply:I didnt know they made ar plate that thin...I figured 3/8 was as thin as it got, and the last I welded anything 3/8 was a very long time ago
Reply:I have not had much luck drilling ar with a mag drill. I’ve seen literature on trak-star bits for railroad iron but haven’t tried any.
Reply:The last time I drilled AR I used normal HSS bits spun slow, but flooded them with coolant. I did dull a few, don't get the bit or base metal hot or you are done with that hole. But I think a mag base Hogan with sharp cutters would work better. Same thing, flood with coolant. I would grind the millscale where you drill. That stuff is diamond hard on tooling! And Hogans ain't cheap! Most of the AR that we drill, the machinist use a ceramic insert drill. Maybe if all else fails grab a machinist handbook and see about reshaping a normal bit to a flatter angle for hard mat'l. Been awhile, but I thought I saw that in there. What AR are you using? Most of ours is 450-500 or Tricon Tri-braze. If is a slide wear with no impact it is NB plus overlay, cheap but works. What size holes? I think with that bucket, he may get one cheaper, but with a lousy wear package. Seems they forget that part costs alot.Still snow on the ground? Spring thaw here, soupy wet.Last edited by MISSING LINK; 03-21-2021 at 10:42 PM.
Reply:I know that instructions that come with poly floor liner says that on ar dump beds to heat the spot cherry red then drill your holes. I have drilled some 1/4” ar in a drill press with a new cobalt bit without problems but it was only a 3/8 holeMillermatic 252millermatic 175miller 300 Thunderboltlincoln ranger 250smith torcheslots of bfh'sIf it dont fit get a bigger hammer
Reply:Maybe find if someone makes a pre drilled frog. Drilling holes yourself will become labor intensive $ wise.Ol' Stonebreaker "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:I think farming it out might be the way to go.I know there would be some HAZ problems adjacent to the hole, but I'm not convinced it would amount to a hill of beans. i've read that nitriding only goes about .010 deep. Water jet cutting an option?https://kotlyn.com/ar400-abrasion-re...t%20off%20saws.Some crap, it just pays to send it out.
Reply:Any way you look at it gonna cost some money to either get a moldboard ready made which is about a week or so away from today, or layout and drill the holes, so Tyler talked to some folks who deal with this stuff and they told him these moldboards are usually mild steel, he said are you sure about that and they assured him it was so. So if somebody is gonna make some money doin it Tyler and Joe and me all are in argreement it might as well be us makin the money. The plate for the moldboard arrived this afternoon so tomorrow I will be layin out the holes and then be a mag drillin maniac, there might be another guy who can run another drill if he dont get sent to another job somewhere. I already got the drawing made up for the hole layourt so thats done.
I bolted up the 2 corner bits and clamped the inner edges on the old moldboard to draw up the layout of the holes on paper yesterday afternoon
I cut the moldboard out this morning and cleaned it upLast edited by Popeye an old miner; 03-23-2021 at 08:16 PM.
Reply:A couple of shots of the excavator bucket with the floor cut out of it, Tyler is still waitin for an answer on this one
It needs a new toothbase on the one corner too. Id really like rebuild this thing, they are a lot of fun to work on. But then again anything I do I consider fun. Most folks tell me Im nuts and crazy. I guess its the challenge of the whole thing...thinkin faster than the iron, buildin something that when Im done is almost indestructable and belive it or not the dirt. I love coal dirt, I grew up in it and never left it I guess
Reply:
Originally Posted by MISSING LINK
The last time I drilled AR I used normal HSS bits spun slow, but flooded them with coolant. I did dull a few, don't get the bit or base metal hot or you are done with that hole. But I think a mag base Hogan with sharp cutters would work better. Same thing, flood with coolant. I would grind the millscale where you drill. That stuff is diamond hard on tooling! And Hogans ain't cheap! Most of the AR that we drill, the machinist use a ceramic insert drill. Maybe if all else fails grab a machinist handbook and see about reshaping a normal bit to a flatter angle for hard mat'l. Been awhile, but I thought I saw that in there. What AR are you using? Most of ours is 450-500 or Tricon Tri-braze. If is a slide wear with no impact it is NB plus overlay, cheap but works. What size holes? I think with that bucket, he may get one cheaper, but with a lousy wear package. Seems they forget that part costs alot.Still snow on the ground? Spring thaw here, soupy wet.
Reply:
Originally Posted by farmersammm
I think farming it out might be the way to go.I know there would be some HAZ problems adjacent to the hole, but I'm not convinced it would amount to a hill of beans. i've read that nitriding only goes about .010 deep. Water jet cutting an option?https://kotlyn.com/ar400-abrasion-re...t%20off%20saws.Some crap, it just pays to send it out.
Reply:So today I layed out the holes in the moldboard and drilled em and then did a test fit
Fixin to drill the last hole
And then this happens...of course it does...damn near busted my fingers too. I got a little frisky feedin the bit
Test fit... she bolts up real nice. altogether doin the layout about 6 hours, one man, me. 4 hours doin the layout, check it check it check it check it as you go then check it all again, 2 hours drillin
Reply:Kinda fuzzy pic but it looks like you have the frog flush with cutting edge.Ol' Stonebreaker "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:
Originally Posted by mla2ofus
Kinda fuzzy pic but it looks like you have the frog flush with cutting edge.
Reply:
Originally Posted by Popeye an old miner
Yes it is, both sides are flush, tommorrow i will cut the bevel to weld it on and put some dogs on it to hang it on the blade. The leading edge can either be trimmed back an inch or so or I can leave it there and then it will wear down as far as they want it to wear and then turn the edges around. Ive done it both ways already it dont really matter. The way these guys are they might just wear the whole damn thing off in a year and then I can do it all over again
Reply:
Originally Posted by 12V71
Yeah, it wont hurt to leave it long and let it wear down. I've done a few scrapers that way. One trick I used on scrapers was to put about 3 extra long bolts in the bit so you could see them scratching in the cut and know it was time to drop or flip the edge... If the operators caught it.
Reply:I'm glad I don't have to skin that cat. That'll be like trying to cut an overcooked round steak with a case knife!!Ol' Stonebreaker "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:
Originally Posted by mla2ofus
I'm glad I don't have to skin that cat. That'll be like trying to cut an overcooked round steak with a case knife!!
Reply:You've worked how many yrs in mining and have never heard of a catskinner??Ol' Stonebreaker "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:
Originally Posted by mla2ofus
You've worked how many yrs in mining and have never heard of a catskinner??
Reply:It must be a regional dialect thing. About everywhere I've worked in the west that's what I've always heard them called. You probably already know this, but after cutting the bevel you should check the opposite edge with a good straight edge for warpage. Could make for a bad day to get it welded in and the holes don't quite line up.Ol' Stonebreaker "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:
Originally Posted by mla2ofus
It must be a regional dialect thing. About everywhere I've worked in the west that's what I've always heard them called. You probably already know this, but after cutting the bevel you should check the opposite edge with a good straight edge for warpage. Could make for a bad day to get it welded in and the holes don't quite line up.
Reply:Catskinner is what we call the tracked bulldozer operator. Unless you opperate a rubber tire bulldozer, then you are a rubber bull. I was a pit welder working with the bullgang,,,, "pit mechanics". Interesting the dialects used around the areas
Reply:
Originally Posted by MISSING LINK
Catskinner is what we call the tracked bulldozer operator. Unless you opperate a rubber tire bulldozer, then you are a rubber bull. I was a pit welder working with the bullgang,,,, "pit mechanics". Interesting the dialects used around the areasMy Grandfather had a fleet of Cats pulling cable scrapers in the 50's and 60's, all those operators were Catskinners according to him. Even in the early 70's when we were picking up rubber tired self powered scrapers he was still calling operators "Skinners".
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After drillin the holes and cuttin the bevel Im ready to hang the moldboard on
all tacked up and ready to weld out the moldboard, Ill do all the gussets and whatnot on the backside first
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back side of the blade all the gussets welded out
Here it is all dressed up and ready to go to the dance
This is the machine I ran it with, Im gettin all kinds of modern and civilized and stuff, it took awhile to figure out how to set this thing up bein as how it has a little computer type thing inside it with about 20 different programs for whatever you want to do. Im not really impressed with it, but they wanted me to use it instead of running my 502D and buying the fuel, which makes sense. This is the first time I ever used it, so I guess there is a bit of a learning curve there, Im just used to running those old engine drives most of my life. I suppose you can teach an old dog new tricksThey tell me that excavator bucket isnt gonna happen, the customer is gonna get a brand new one instead. I was lookin forward to rebuildin that one
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Last edited by Popeye an old miner; 03-30-2021 at 04:16 AM.
Reply:Nice progress! Shop work is a nice change of pace sometimes. Less rain anyways. I am in the repair shop now working on buckets, has been nice this winter. Have a 41 yrd P&H right now we are stripping. I have a Miller Dimension as my indoor machine. It is ok, but I prefer my 98 vintage Big Blue 600d instead. It is loud, but 10 times the machine the Dimension is. As far as a heavy repair machine it can outwork a 800 Duo, which we have as well. But, I guess they pay me to use this machine, so, I suppose....Me thinks you will be getting the new bucket, for partial rebuild soon enough. Seems like they come light duty when new. I would jot down some quick notes about the old one, so when the time comes to redo it you can hit the ground running.
Reply:See if you can buy the old one, rebuild it & resell. Maybe back to original owner????
Reply:
Originally Posted by cwby
See if you can buy the old one, rebuild it & resell. Maybe back to original owner????
Reply:
Originally Posted by Lis2323
That’s a good thought but without a buyer at a confirmed price Popeye could be out a load of hours AND dough. Sent from my iPad using Tapatalk |
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发表于 2021-9-1 23:18:02