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Type: Posts; User: Red James

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  1. What I.D. do you need? Your terminology indicates...

    What I.D. do you need? Your terminology indicates you are looking for 5/8 O.D. die buttons.
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    " ... The books said clearance constant for...

    " ... The books said clearance constant for aluminum over 1/8" is 8, so .375 divided by 8 is about 48 thousandths, divide that by two so my clearance is 24 thousandths per side...

    Why divide by...
  3. McMaster offers 1" dia x 36" long inco 625 for...

    McMaster offers 1" dia x 36" long inco 625 for 365.71 ... just sayin'
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    Try honing I.D. first, then grind O.D., on...

    Try honing I.D. first, then grind O.D., on freshly ground arbor if you can.
    I have ground O.D.'s with al-oxide wheels. Since you are only removing a tenth or two per side you should have no trouble.
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    Not familiar with that mill, but an 8 or 10 mm...

    Not familiar with that mill, but an 8 or 10 mm pilot drill should help drill on size and lower power requirements.
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    As Litlerob1 says, increase your finish pass...

    As Litlerob1 says, increase your finish pass material. I have found leaving 0.05 (0.025 per side) for finish works well with C1018
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    If someone else has this problem, it can be ...

    If someone else has this problem, it can be machined with the "Spiral" machining option. Have to write a manual program to use it as it is an EIA option, but it does work just fine.
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    I've been running Mazak even longer than...

    I've been running Mazak even longer than Philabuster and have no clue what 'negative tool pressure' is . . . don't touch the part?
  9. 360 degrees divided by number of teeth yields...

    360 degrees divided by number of teeth yields degrees per tooth. Divide this by two to get degrees per 1/2 tooth. This is the angle to rotate one keyway relative to the other.
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    Sounds like a dull tool putting excess pressure...

    Sounds like a dull tool putting excess pressure on the part.
  11. Sunnen has always been very helpful when you call...

    Sunnen has always been very helpful when you call them with questions. Just give them a call.
  12. Replies
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    1,165

    What Gobo said ... BUT most work I see can be...

    What Gobo said ... BUT most work I see can be done easily with Mazatrol.
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    Set spindle speed to 100 and see if it smooths...

    Set spindle speed to 100 and see if it smooths out.
  14. Try one of those 'sheet metal' drills with...

    Try one of those 'sheet metal' drills with stepped diameters. For 3/16" should work fine.
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    Both sizes/pitches are standard MSC taps, spiral...

    Both sizes/pitches are standard MSC taps, spiral pointed, and 70 mm OAL. Grind your own shank relief and tap without pecking.
  16. Lathe will be fine. BORE the tube I.D. to the max...

    Lathe will be fine. BORE the tube I.D. to the max minor thread diameter (bore to get the I.D. concentric!)
    MSC lists over 200 spiral point taps ... you should not select the cheapest one!
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    Not a parameter; try M code 19

    Not a parameter; try M code 19
  18. Replies
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    732

    A 1/4" capacity shear would likely require a...

    A 1/4" capacity shear would likely require a hefty motor. What does your motor tag list as full load amps? (Often listed as FLA)

    What is the breaker protecting? Phase converter?
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    1,125

    Opinions are usually worth about what you paid...

    Opinions are usually worth about what you paid for them, but I think Mitsui surface grinders are the best made.
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    If your part has NO stock on it why grind it? ...

    If your part has NO stock on it why grind it?

    With the wheel over the part (and magnet on!) slowly bring wheel down until it touches. Grind top of part with no further down feed, move wheel away...
  21. Thread: ETD150 Steel

    by Red James
    Replies
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    1,844

    Elevated Temperature Drawn (ETD) 4150. Stronger...

    Elevated Temperature Drawn (ETD) 4150. Stronger version of 4140 or 4150, works about the same.
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    Label is "Initial Z" iirc

    Label is "Initial Z" iirc
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    641

    Easier to use the clearance height in the very...

    Easier to use the clearance height in the very first line of every mazatrol program. Parameter only sets the "R" plane if you choose to use it in a 'point' type sequence.
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    Simply put, the hardness of the steel edge will...

    Simply put, the hardness of the steel edge will mostly depend on the carbon points of the steel. < 20 (like 1018) not much effect, >30 and you will get significant hardening. Most alloys are similar,...
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    You just need to use a wear resistant steel, like...

    You just need to use a wear resistant steel, like 4140 PH. Corrosion is not gonna happen.
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