Affende's 'How the other half lives' thread

[affende]

Partly because I have all the stuff sitting on the shelf looking for a purpose in life and partly because I want to build a heavier machine than what's currently on the market. The Climax machine does look like a very well thought out piece of equipment though. If I find a setup at a good price I might drag it home with me.

I'd enjoy seeing a video as would some of the other GJ members here. I'm very familiar with line boring, although with much larger machines. However, I have no experience with bore welding.

10-4. I will say from my experience with portable boring ... i really dislike the hydraulic. The first setup i ever used a hydraulic B&D Manufacturing unit. We spent weeks troubleshooting the equipment with the manufacturer and finally came to the conclusion that it was not designed to take the kind of cut we were wanting to take. (anything over 0.060" or so on the cut depth would stall the motor ... even after we had the pump and motor rebuilt). unfortunately the equipment was old and had been abused in its previous life and was "BER" (Beyond Economical Repair).

I have heard a few similar stories with hydraulic units ... and it has ruined MY OPINION of them. Obviously, YMMV.

ill try to get the GoPro in the shop the next few weeks and put together a video of our little operation.

BTW ... ill be picking up 'the hammer' from you soon. Absolutely amazing product.

Love it. Keep the updates coming. I'm always fascinated to learn how large pieces of equipment are refurbished like this.

Thanks.

That's pretty neat stuff, I guess when you need it there is no substitute.

Absolutely.

Looks great I keep thinking about getting into setting up a mobile line boring operation but I don't have much specific experience in it. Looks great and please keep posting projects.

if you can weld, read a mic, and run a lathe .... this is will be a peice of cake for you. Im a welder, not a machinist, so the cutting part takes me a a little longer than others.

The biggest cause is an operator who doesn't take the time to grease every day.

or the last repair that cut a hole too small, forced the bushing in, and prematurely wore out the bushing / cracked it and cause it to spit out of the bore.

Yes, please keep posting. I find it interesting that this precision machining is done on a machine that needs to be refurbished every 13 months. I realize working in an underground mine is a difficult and dangerours job and now know that the machines are also worked hard.

most of the machines i get in are not worked hard ... they are absolutely abused. A Lot of people blame the operator ... but the operator is only partly at fault. The majority of the fault is within management. Same with safety, If management is not active and supportive of jobsite safety, then it simply does not happen. Management has to be active and supportive of routine maintenance on these machines or it will not happen.

I do not blame the operator. I blame management. If the operator were to blame, management would correct their poor maintenance habits or dismiss the employee. Constantly abused machinery, in my mind, is the fault of those calling the shots.

Are you using regular MIG wire or something harder? How well do your tool bits hold up when boring the newly welded surface compared to the parent material.

That is a really impressive setup. Looks like a very clean way to restore that surface.

We use somewhat of a regular Mig wire. Commercially available, common wire .... but a specialty wire. We use a cast controlled wire to prevent 'wire flip'. The bore welder is constantly rotating and when the wire rotates as well, it make a few rotations and then snaps back to a 'unsprung' condition. This is called wire flip and wreaks havoc on your weld.

As such, we use a cast controlled wire meant for robotics. ER70s-6.

 

[mvptrukin]

Affende, great thread and pics--like everybody else I am waiting for the video! Have you ever used the system from bore repair out of NH? They have a lot of videos on YouTube but don't look as sturdy as the one you've shown.

 

[affende]

Affende, great thread and pics--like everybody else I am waiting for the video! Have you ever used the system from bore repair out of NH? They have a lot of videos on YouTube but don't look as sturdy as the one you've shown.

it looks amazingly similar to the old B&D unit we replaced.

 

[affende]

Sorry for the lack of updates ... i got pulled off the loader project to go do some work at the DOE ... and for those that dont know, the DOE has a simple-to-understand policy regarding pictures ... NO.

We should be back to our regularly scheduled equipment repair by the middle of next week.

 

[wrencheshurt]

Great post man, I went to work for a mine to do this kind of work, but it was a union mine, so all I got to do was listen to everyone ***** about everything. I moved on and hope I can get to do this type of work again someday

 

[bad_idea]

What is the DOE? I work for the DOD as a Navy Contractor repairing Navy ships. They have a no camera policy too. I find it a nuisance (a good nuisance, but a nuisance none the less) because at times it would be cool to post up some of the equipment I work on.

Interesting work. But it looks like it would get boring quick (play on words intended) watching the machine weld then watching the machine bore. What does it mean to double brew your coffee? Do you run it through the machine twice? Seems it would foul the workings of the coffee maker.

 

[jayrush13]

If it is the same DOE as we have here its the department of energy

 

[IndyGarage]

A long time ago I worked in an aerospace plant. We didn't have this kind of equipment, but welding up metal and re-machining it was a common thing. We also flame sprayed or plasma sprayed a lot of metal on surfaces like this.

I would bet you could get a much harder bore surface if you messed around with the temps and the wire composition, however in that application it's probably not all that desireable. There's so much hammering on the bores that they would crack if the surface was much harder than the substrate. That would also make it hard to machine back out.