Chipped cutting disc on pipe cutter

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My wife's father had a real old pipe cutter.  He's passed on, but now she has it.  I need to cut some 1.5" copper water pipes and sweat on some fittings.  My 2 normal pipe cutters won't expand enough to even go around the 1.5" pipe.  Her pipe cutter will, but the cutting disc is chipped in several spots.  I tried 2 local hardware stores and a tool supply place.  None had any discs that were big enough or would fit.  Would it be possible to weld some stronger metal into the chipped away sections and then grind away the excess material in order to bring back the cutting disc to its original condition?  I would also like to "sharpen" the existing parts of the disc that aren't broken off.This pipecutter would be used to cut copper.  What sort of filler material would I need to use?  I have standard mig wire (70-S6), stainless wire (308L); 6011, 6013, 7014, 7018 sticks and Radnor Wear 60 hardsurfacing sticks. Attached ImagesHH187Harris O/AInfrared thermometerHalf a dozen angle grinders
Reply:If you REALLY want to weld it, good luck... Its tool hardend steel, which Im not aware of its ability to take a weld. Also, you would need to machine it if you ever wanted it to cut copper again.I would check some Ridgid cutters, and Imperial Eastman to see if they are comparable in diameter, and set pin size, thats your best bet, I would imagine.Lincoln Power MIG 210 MP ( boat anchor )Lincoln Weld-Pac 100 HDHobart IronMan 230Cutmaster 42Jackson NexGenSumner Ultra ClampsDWM120
Reply:Now finally here is where Horrible Frieght shines. Go to Harbor Frieght, get their 2" pipe cutter, less than twenty bucks. You can spend $20.00 driving around looking for cuttin wheels or messing with the chipped up one."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:Most plumbing supplys should have replacement wheels for large cutters like Rigid. The question would be if they will fit. Another thought would be just having someone with a lathe turn you a new cutter out of tool steel. For copper you won't need a hard cutter like you will using it on steel pipe..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:What is the pin diameter and the cutter width? The outside diameter isn't critical so long as it's large enough to get through whatever pipe is being cut, and any that you find which is made for a modern tool and fits yours will be large enough anyway. BTW, couldn't you have turned the tool upside down before you photographed it; it's hard looking at my screen to read the name while standing on my head.  Just kidding
Reply:One hardware store had a cutting disc that was the same diameter as the old one, but it was too wide.  Probably 3/8" too wide.  There aren't any plumbing supply places where I live.HH187Harris O/AInfrared thermometerHalf a dozen angle grinders
Reply:The pin diameter is 3/8", the wheel diameter is 1.25", the the width of the wheel where the pin goes through is also 3/8".  What if I bought the wheel that was too wide around the hub, and then ground it down to fit?HH187Harris O/AInfrared thermometerHalf a dozen angle grinders
Reply:Originally Posted by paulinkansasThe pin diameter is 3/8", the wheel diameter is 1.25", the the width of the wheel where the pin goes through is also 3/8".  What if I bought the wheel that was too wide around the hub, and then ground it down to fit?
Reply:that will work.. cut 3/16 off each side...or just grab the sawzall or portaband and  slice the copper...