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Thread: what steel

  1. #1
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    Default what steel

    What steel should I be using for the 1/4" shaft for the Knurling wheels?

    is good grade mild steel ok or should I be looking at something else

    I have some old broken 1/4 end mills..is this stuff suitable?..eg not too brittle?

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    Default steel

    Hi

    I used mild steel for that shaft in my Harold Hall knurler .Cant remember what he specifies in his drawing ATM . If it does wear after considerable use ,I will make another one in a harder steel. Mike

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    I tried a socket head shoulder screw but that wore quickly. I then replaced those with some oil hardening silver steel which I hardened and tempered and that has worked fine thereafter with no sign of wear. If you PM me with your address and how much you need I'll see if I have some left over to send to you.

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    Dowel pins are often mentioned. But check the bores of your wheels. My cheap ones were pretty rough - like drilled. They would wreck anything. I need to get some better ones. And some dowel pins.

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    Rather than going to the trouble of hardening and tempering silver steel or case hardening mild steel with kasenite or similar hardening compounds, I had a piece of 1/4" HSS round blank, left over from making a little tool, which I cut to length with a cut off disc when I made a single wheel knurler many years ago. When you knurl there should be plenty of suds or cutting oil around so there is no wear and the HSS is well up to the task. Depending on the size of the knurling wheel bore, a piece of end mill shank will do the same thing and cost you nothing.
    Peter.

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    I managed to seize a knurl once because I did not have any grease between the knurl and the pin that it was running on. I would suggest that the shaft of a SHCS would be fine provided it is lubricated.

    Michael

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    Ueee is offline Blacksmith, Cabinetmaker, Machinist, Messmaker
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    I think some guys have used shoulder bolts before, they are suited perfectly. http://www.ebay.com.au/sch/Industria...=shoulder+bolt

    Ew
    1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.

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    Quote Originally Posted by Bryan View Post
    Dowel pins are often mentioned. But check the bores of your wheels. My cheap ones were pretty rough - like drilled. They would wreck anything. I need to get some better ones. And some dowel pins.
    You haven't been looking hard enough Bryan . http://www.woodworkforums.com/showth...02#post1676202

    What size wheels are you using/hoping for, ID,OD and bore?

    Bob.

    ps. just had a browse -

    http://www.ebay.com/itm/ARMSTRONG-KN...item3ce10e801b

    http://www.ebay.com/itm/1-PAIR-EAGLE...item3ce0ed507e

    http://www.ebay.com/itm/FORMROL-STRA...item19b98fcc97 ( I have purchased wheels from this seller )

    http://www.ebay.com/itm/BROWN-SHARPE...item48392e0f62

    http://www.ebay.com/itm/ACCU-TRAK-KN...item2c819a5748

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    Quote Originally Posted by Anorak Bob View Post
    You haven't been looking hard enough Bryan .
    Bob, thanks for the links. You are correct, I haven't been looking. Bigger fish etc. The knurler project has been cycling for at least couple of years. I meant I need to next time it comes around. What's your rush?

  10. #10
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    Quote Originally Posted by Peter Fou View Post
    a piece of end mill shank will do the same thing and cost you nothing.
    Peter.
    Thanks Peter and all

    I will just use the old 1/4 end mills...

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