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  1. #46
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    69
    Posts
    4,904

    Default

    Quote Originally Posted by OxxAndBert View Post
    I'd actually like to know how those spherical faces for the pinion gears would have been machined originally. Steve
    Hi Steve, I'm not 100% certain on this, but I'd say they had a boring head that has the ability to expand itself once in the hole. One brand is Waulteper or something similar, someone may chime in with the correct spelling of it.
    A friend of mine has a boring head that is capable of this type of work.
    Kryn
    To grow old is mandatory, growing up is optional.

  2. #47
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    681

    Default

    A Wohlhaupter can do simple tapers but it cannot do a radius, the machining operation on the carrier requires specialized production equipment and is done on CNC machines these days, video attached, I would like to see how it was done in the early years of automotive manufacturing.

    https://www.youtube.com/watch?v=xsyW3f7suiU

  3. #48
    Join Date
    Nov 2017
    Location
    Geelong, Australia
    Age
    55
    Posts
    1,780

    Default

    This is CNC, but its just a form cutter plunge - no toolpath control.
    https://www.youtube.com/watch?v=J_ppCe9LUGY

    Could be done on a manual machine with a boring bar and form tool.

    Steve

  4. #49
    Join Date
    Mar 2014
    Location
    South of Adelaide
    Posts
    901

    Default

    When you get into volume manufacture, it is a whole different ball game to the job shop/hobby machining most of us a used to. There are lots of very specialized machines out there that are extremely good at making the part they are designed for. so if you ever look at a mass produced part and wonder how it was machined on a lathe or mill, it might have been made on a specialized machine.

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