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  1. Replies
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    i see basic diemaking book by D. Eugene...

    i see

    basic diemaking book by D. Eugene Ostergaard refers to it as the cut band, says it should be about a third of the thickness, i have also heard that it should be about half the thickness
    ...
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    I appreciate everyone's input, a lot of things...

    I appreciate everyone's input, a lot of things well said, i am here to learn, a lot of you have a massive amount of experience and knowledge.

    I wanted to see how this part would come out with...
  3. Replies
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    update

    so quick update

    I have thought of other methods of building this part...i haven't found any methods that are up to the challenge of speed. 500 parts a year, would mean they order 500 parts at one...
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    Good point, but I wouldn't be able to beat the...

    Good point, but I wouldn't be able to beat the water jet cost at that speed. The other goal here too is the learn about this stuff.

    I'm 33 years old, been in construction industry since I was 15,...
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    anybody got anything on this old gurl

    anybody got anything on this old gurl
  6. Replies
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    Thanks AD D 1) How many pieces do you need to...

    Thanks AD D

    1) How many pieces do you need to make? 500 a year

    2) The intended purpose of the part? Automotive accessories like aftermarket bumpers, ladders, racks, running boards, ect...

    3)...
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    lots of great stuff here guys, thanks so much for...

    lots of great stuff here guys, thanks so much for your input

    So we should shoot for a max of 14 tons required, so we dont overwork or brake this antique Niagra no. 3 flywheel punch press.

    I...
  8. Replies
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    this is a flywheel mechanical niagra no 3

    this is a flywheel mechanical niagra no 3
  9. Replies
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    all good info here, thanks for your input. so...

    all good info here, thanks for your input.

    so i used an auto cad program to come up with the perimeter (i cant do math when im tired, it shows, LOL, sorry)

    perimeter of all areas to be sheared...
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    i have a no. 3 niagra punch press, wanted to find...

    i have a no. 3 niagra punch press, wanted to find any and all information i can on it.
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    repost pictures?

    anyway you can repost these pictures? photobucket makes you pay for the service now...
  12. Replies
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    What would be the best way to add shear to the...

    What would be the best way to add shear to the die? Want to make sure the blanks stay flat. Would I have to make a new stripper plate?

    What are your guys thoughts on the clearance. All the charts...
  13. Replies
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    6061 aluminum T6 One of my books says 10,000...

    6061 aluminum T6

    One of my books says 10,000 for "aluminum"
    Another one says 15,000 for "aluminum"

    You have a book showing T6 6061 as 30,000 psi?
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    Oh wow I did screw up some math there...herez...

    Oh wow I did screw up some math there...herez another formula out of a different book, using the correct 10.8 perimeter it comes up with 9 tons...

    20191117_205417.jpg - Google Drive
    ...
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    Yes same plane, large punch, and small punch hit...

    Yes same plane, large punch, and small punch hit at same time.

    Ya I guess I could add shear to the die... but it should work as is, unless I'm calculating something wrong, or my clearance is...
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    I did accommodate for the simultaneous operation...

    I did accommodate for the simultaneous operation of the .548" hole that's being punched.

    I understand that I shouldn't be running near capacity...but it still should work which makes me think I'm...
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    Hmmm ok so I rechecked my math, I came up with 18...

    Hmmm ok so I rechecked my math, I came up with 18 tons now. But still under the 19 ton cap. The book uses a blanking force formula, which is shear strength of material times the perimeter of cuts...
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    20191117_175706.jpg - Google Drive...

    20191117_175706.jpg - Google Drive

    20191117_175713.jpg - Google Drive

    20191117_175719.jpg - Google Drive

    20191117_175741.jpg - Google Drive
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    Punch and die clearance...fail

    I built a progressive punch and die set. I tested it today and it didnt work. I calculated the tons required and it was 16 tons of shear. 3/8" 6061 aluminum is the material. I have a no. 3 Niagara...
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    heat treatment opinions

    Hello,

    I am new to heat treating and i have a few things to heat treat. I will send them out to a heat treat facility. How would you heat treat these items?:

    A punch and die set made out of D2...
  21. what are these DOALL parallels of different thicknesses

    what are these DOALL parallels of different thicknesses

    1/4
    3/8
    5/8

    thick

    what are these and what are they used for???
  22. Thread: feed rate

    by winklershop
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    i see, good information, so i am very green when...

    i see, good information, so i am very green when it comes to this stuff, i guess my question was even more simple

    i hear a lot of people referring to their feed rate in thousandths, if you look at...
  23. Thread: feed rate

    by winklershop
    Replies
    7
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    1,436

    feed rate

    Had a quick question. When you refer to what feed rate you are using, i.e. "running 30 thousandths feed rate" , which chart do you use on your lathes?

    I have a 1957 lodge and Shipley and have...
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    thanks for the input, much appreciated. How...

    thanks for the input, much appreciated.

    How about CD STRESS PROOF BAR - STRESSPROOF TM ?
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    material selection

    I need to build some "Bull Pricks" This is basically a fancy spike or stake that they pound into the ground like a pilot drill bit, to make room to drive the wooden stake (hub) or vampire stake into...
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