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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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OK ... this should be simple enough.... thats what I thought...
My Husband has one of those metal reclining chairs with the ottoman in the living room... One of the bolts broke off that holds the back to the arm... We got a bolt extractor which has now broken off... I though maybe if I cut that off and drilled the hole back out I could thread a jewlers saw blade through and cut the bolt in quarters and then pry them out.... but I'm not sure I could drill through that extractor. Any Ideas folks?? thanks in advance...... KJ |
#2
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handysmurf wrote:
OK ... this should be simple enough.... thats what I thought... My Husband has one of those metal reclining chairs with the ottoman in the living room... One of the bolts broke off that holds the back to the arm... We got a bolt extractor which has now broken off... I though maybe if I cut that off and drilled the hole back out I could thread a jewlers saw blade through and cut the bolt in quarters and then pry them out.... but I'm not sure I could drill through that extractor. Any Ideas folks?? thanks in advance...... KJ If you've got a whole lot of time and patience you could probably pick away at it with a carbide burr in a Dremel and get it and the extractor out that way. You might have to retap for the next larger fastener or Helicoil the hole to get the original thread size back again if you remove too much of the original hole threads. If the whole arm is metal, and you can remove it from the rest of the chair you could try and find a cooperative machine shop with EDM capability and have them "burn it out". Knowing what a great gang of guys inhabit this newsgroup, I'd hazard a guess that someone would be willing to have a go at doing that for you gratis if you'd stand the shipping costs. Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "Truth exists; only falsehood has to be invented." |
#3
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"handysmurf" wrote in
ups.com: OK ... this should be simple enough.... thats what I thought... My Husband has one of those metal reclining chairs with the ottoman in the living room... One of the bolts broke off that holds the back to the arm... We got a bolt extractor which has now broken off... I though maybe if I cut that off and drilled the hole back out I could thread a jewlers saw blade through and cut the bolt in quarters and then pry them out.... but I'm not sure I could drill through that extractor. Any Ideas folks?? thanks in advance...... KJ 1. Use a smaller-diameter carbide masonery bit to drill a pilot hole in the extractor. 2. Use a sheetmetal screw to unscrew the extractor. 3. Use a new extractor to remove the bolt. |
#4
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On Mon, 17 Oct 2005 18:47:29 -0400, Jeff Wisnia
wrote: handysmurf wrote: OK ... this should be simple enough.... thats what I thought... My Husband has one of those metal reclining chairs with the ottoman in the living room... One of the bolts broke off that holds the back to the arm... We got a bolt extractor which has now broken off... I though maybe if I cut that off and drilled the hole back out I could thread a jewlers saw blade through and cut the bolt in quarters and then pry them out.... but I'm not sure I could drill through that extractor. Any Ideas folks?? thanks in advance...... KJ If you've got a whole lot of time and patience you could probably pick away at it with a carbide burr in a Dremel and get it and the extractor out that way. You might have to retap for the next larger fastener or Helicoil the hole to get the original thread size back again if you remove too much of the original hole threads. If the whole arm is metal, and you can remove it from the rest of the chair you could try and find a cooperative machine shop with EDM capability and have them "burn it out". Knowing what a great gang of guys inhabit this newsgroup, I'd hazard a guess that someone would be willing to have a go at doing that for you gratis if you'd stand the shipping costs. Jeff Greetings Jeff, That's a good idea! Easyouts are as hard-and as brittle-as glass. Removing one of them without the proper tools is a huge pain in the butt. I will now volunteer to repair the part for free. But the shipping needs to be paid both ways. Eric R Snow, E T Precision Machine |
#5
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![]() Thank you very much but shipping would be prohibitive. The whole base and arms are welded to make one piece. So the size alone would be somewhere in the neighborhood of a 4' cube. Sounds like my best option at this point is to drill it out and tap a larger hole.... |
#6
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the extractor itself is only about 3/16" so no drilling a pilot hole
.... lol |
#7
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![]() "handysmurf" wrote: Any Ideas folks?? ^^^^^^^^^^^^^^^^^^ Do you have access to an acetylene torch? I would heat it red hot, and then cool it slowly, to anneal it. Then it ought to be soft enough to drill. Or blast it with a cutting torch, and then weld in a new threaded sleeve of some sort (something like a coupler nut.) |
#8
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![]() "handysmurf" wrote: Thank you very much but shipping would be prohibitive. (clip) ^^^^^^^^^^^^^^^^ Why don't you give your location--a helpful person with the right equipment may not be too far away. |
#9
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RAM^3 wrote:
"handysmurf" wrote in ups.com: OK ... this should be simple enough.... thats what I thought... My Husband has one of those metal reclining chairs with the ottoman in the living room... One of the bolts broke off that holds the back to the arm... We got a bolt extractor which has now broken off... I though maybe if I cut that off and drilled the hole back out I could thread a jewlers saw blade through and cut the bolt in quarters and then pry them out.... but I'm not sure I could drill through that extractor. Any Ideas folks?? thanks in advance...... KJ 1. Use a smaller-diameter carbide masonery bit to drill a pilot hole in the extractor. 2. Use a sheetmetal screw to unscrew the extractor. 3. Use a new extractor to remove the bolt. If you do get the bolt out without damaging the thread, you might want to replace the bolt with a high tensile bolt to reduce the chance of the failure occuring again. Chris |
#11
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![]() handysmurf wrote: OK ... this should be simple enough.... thats what I thought... My Husband has one of those metal reclining chairs with the ottoman in the living room... One of the bolts broke off that holds the back to the arm... We got a bolt extractor which has now broken off... I though maybe if I cut that off and drilled the hole back out I could thread a jewlers saw blade through and cut the bolt in quarters and then pry them out.... but I'm not sure I could drill through that extractor. Any Ideas folks?? thanks in advance...... The extractor is too hard to drill except with carbide. It sounds as though you can get to to the other end of the bolt. If so, drill the bolt until you hit the extractor, then knock it out with a pin punch. Then you can drill larger until you hit threads, or try the trick with the jewelers saw. It will be slow, but should work. John Martin KJ |
#12
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![]() "RAM^3" wrote in message 21... "handysmurf" wrote in ups.com: 1. Use a smaller-diameter carbide masonery bit to drill a pilot hole in the extractor. Have you ever tried to drill hardened steel with a masonery bit? Have you ever tried to do this freehand on a char handle? 2. Use a sheetmetal screw to unscrew the extractor. If you have deilled a hole in a piece of hardened steel were you ever sucessfull in using a sheet metal screw to grab in a hole drilled into a chunk of hardened steel? 3. Use a new extractor to remove the bolt. How may extractors are you going to sacrifice before you go to plan "B"? -- Roger Shoaf About the time I had mastered getting the toothpaste back in the tube, then they come up with this striped stuff. |
#13
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"Roger Shoaf" wrote in message
... "RAM^3" wrote in message 21... "handysmurf" wrote in ups.com: 1. Use a smaller-diameter carbide masonery bit to drill a pilot hole in the extractor. Have you ever tried to drill hardened steel with a masonery bit? Yep! It worked well for what I needed it for. Not exactly a "precision" bit, but CHEAP! Have you ever tried to do this freehand on a char handle? Dunno about "chars", but if the OP was able to drill the bolt freehand, drilling the extractor won't be any more difficult. Slower, perhaps, but no more difficult. 2. Use a sheetmetal screw to unscrew the extractor. If you have deilled a hole in a piece of hardened steel were you ever sucessfull in using a sheet metal screw to grab in a hole drilled into a chunk of hardened steel? All that is needed is for the taper of the sheetmetal screw to enable it to jam against the side wall of the drilled hole. The purpose of the sheetmetal screw is to be an extractor extractor. G 3. Use a new extractor to remove the bolt. How may extractors are you going to sacrifice before you go to plan "B"? 2: The broken [perhaps defective] one and, if too much force is applied, a replacement. -- Roger Shoaf About the time I had mastered getting the toothpaste back in the tube, then they come up with this striped stuff. |
#14
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"handysmurf" wrote in message
oups.com... the extractor itself is only about 3/16" so no drilling a pilot hole ... lol In which case, use the carbide bit [they're available in that size] to drill out the extractor. |
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