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  1. BMccarthy81

    Solidworks/ProEngineer Training programs

    I'm in the Massachusetts area and I'm currently unemployeed. i'm taking this time to update my skills, therefore I'm trying to locate a institute or college that offers certificate programs for any 3D CAD software. If anyone can steer me in the right direction I'd be most appreciative, thank you.
  2. BMccarthy81

    Residue on Soap-drawn Stainless steel

    At my company we precision grind 304, 316 stainless steel wire (.125 to .011) to tolerances of +/-.0002 of an inch with #2 cincinnatti centerless grinders (om/ae). the material that we use for inventory and most of our customer supplied material is soap drawn stock. We've always had a problem...
  3. BMccarthy81

    Soap Drawn Stainless Steel

    At my company we precision grind stainless steel wire (304, 316)to tolerances of +/-.0002 of an inch with #2 cincinnatti centerless grinders (om/ae). the material that we use for inventory and most of our customer supplied material is soap drawn stock. We've always had a problem with the...
  4. BMccarthy81

    Nitinol Situation

    I'm grinding an 18 inch (45.72 cm) long, .048" (.122)diameter nitnionl wire with a thru-feed grinder. We're taking off .0006" (.0015 cm) and we're finding that the length grows .005" (.0127 cm). I would like to know the actual force needed to cause this elongation effect of Nitinol, or at least...
  5. BMccarthy81

    Less Aggresive Oxide Remover

    We're having a problem with some diamond drawn stainless steel wire for medical instrument use. The straightening process of the wire scratches the surface, usually unpercieved by the human eye. The material itself is very hard and needs to have a hole drilled into it, therefor the ends are...
  6. BMccarthy81

    Less Aggresive Oxide Remover for Stainless Steel

    We're having a problem with some diamond drawn stainless steel wire for medical instrument use. The straightening process of the wire scratches the surface, usually unpercieved by the human eye. The material itself is very hard and needs to have a hole drilled into it, therefor the ends are...
  7. BMccarthy81

    Aluminum Cleaner

    In my shop we're using part holders made out of aluminum, to cut down on weight, that are being used in centerless grinding. There is a slot in the fixture that an A2 plate fits into that the pieces rest on. The plate needs to be extremely flat and flush to the fixture. The amount of grit and...
  8. BMccarthy81

    Lapping/Grinding services

    I'm currently looking for a recomandation for a lapping/grinding service in the new england area. I've tried many places and asked for a flat & parrellel dimesnions of +/- .001 on some .200 A2 hardened steel plate. Many times have I received the plates and they were warped or bowed. does anyone...
  9. BMccarthy81

    Decent Drill Bushings

    I'm trying to find decent drill bushings in the USA, I've found that the ones i have are tapered, I'm using a #60 cobalt drill and the tapered bushings are causing them to shatter. I'm currently using these from MSC and I've tried master-carr, anyone have any suggestions?
  10. BMccarthy81

    EXPLODING 20"x8" WHEEL

    I've had an incident at my office, we were running a 20" by 8" ceramic grinding wheel on a #2 cincinnati grinder, and the wheel, for lack of a better word, exploded. The wheel was from a new company, and was to be used on a trial basis. It wasn't too soft or too hard, it was very much like a...
  11. BMccarthy81

    Mathemtic Formula for Tubes

    I'm looking for a formula that I could use to find out how many .013" diameter wires can fit into a .75" ID pipe. I realize that we cannot divide the area of the pipe by the area of the wire, that give us the number we could fit in with the pieces over lapping. Is there a calculus or a algebraic...
  12. BMccarthy81

    INCREASING OIL PRESSURE 107-4 CINCINNATI

    I'm trying to find out if there is a way to increase the oil pressure on a 107-4 Cincinnati Grinder. This would increase the hydraulic flow. We want to be able to back the piece out of the machine faster than it all ready is.
  13. BMccarthy81

    A2 HEAT TREATED/ANNEALED VS MARTENSITIC SS

    I'm working at a grinding company that uses A2 hardened steel as a base plate for a grinding process. The plate is raised and lower at a certain degree with wire attached to it. The plate then moves into the diamond or resin grinding wheel and angles are ground into the tips of the wire. I'm...
  14. BMccarthy81

    17-4PH Conditioned H900 Low Rockwell Hardness

    We were testing 17-4PH condition H900, .0831 in diameter, for Rockwell testing. We found from our labs that it had a low Rockwell, around 35-36. We decided to get them tested via tensile strength and use the results to get the rockwell hardness number. Again these ranged from 34-36 where as it...
  15. BMccarthy81

    HEAT TREATING AUSTENITIC STEEL INFO

    I've been searching for information about stress relieving/softening austenitic steel, mostly 304. I've found that its Stress Relieving Temp is 400-750F, and its annealing is 1850-2050F. I've been told the steel doesn't respond at all to stress relieving, normailising, hardening and/or...
  16. BMccarthy81

    AISI 304 SS TTT DIAGRAM

    I'm tying to find a TTT diagram for AISI 304 stainless. I've beed given the task to streamline a annealing/heat treating operation, and at this moment, I am unable to find one. Can anyone direct to place where I may find it? Thank you very much.

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