Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 6 of 6
  1. #1
    Join Date
    Jul 2008
    Location
    near Warragul, Victoria
    Posts
    2,500

    Default Induction hardening

    I was wondering if the ways on my Sheraton 9" AR lathe are hardened. Does anyone know how to test this ? Apparently, the Hercus 9" lathes were not hardened ? Found this interesting: Mike

    Induction hardening - Wikipedia, the free encyclopedia

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. #2
    Join Date
    Jun 2007
    Location
    sydney
    Age
    64
    Posts
    3,566

    Default

    Try giving some part of it a touch with a file.

  4. #3
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
    Posts
    5,650

    Default

    Quote Originally Posted by morrisman View Post
    I was wondering if the ways on my Sheraton 9" AR lathe are hardened. Does anyone know how to test this ? Apparently, the Hercus 9" lathes were not hardened ? Found this interesting: Mike

    Induction hardening - Wikipedia, the free encyclopedia
    Mike,

    I did a bit of delving.

    From the Hercus 9 inch swing lathe brochure dated May 1970 - "The bed is of close grained alloy cast iron, naturally aged and precision ground. The working surface comprises two outer vee ways carrying the saddle and a third vee and flat accommodating the tailstock. When required beds can be supplied with flame hardened working surfaces."

    Mention was made that if a Craftsman lathe was supplied as an instrument lathe it had a hardened bed.

    260 serial numbers included an H in the prefix if it was hardened. I don't know about the nines.

    BT

  5. #4
    Join Date
    Jul 2008
    Location
    near Warragul, Victoria
    Posts
    2,500

    Default Ok

    Thanks Bob

    I had an idea that some were hardened . Seems it was an option, going by your brochures, on some of the Hercus models . Still not sure about what Sheraton in Melbourne did . The ways on mine exhibit visible wear towards the tailstock end, on the rear V of the pair of Vees , about 2 thou of ridge I would guess , but only at one end. Odd place to wear , it must have been caused by the tailstock being pushed up and down the ways by the students at the tech. school. The bed is also marked with little dents where they have dropped chucks on the bed at the headstock end. Mike

  6. #5
    Join Date
    Jul 2003
    Location
    The Fabulous Gold-plated Coast.
    Age
    69
    Posts
    3,925

    Default

    FWIW you can still have things flame hardened. Detroit Flame Hardening here in Melbourne can do it, but obviously the bed would have to be in good shape first, then ground afterward. No idea of cost, nor the benefit to a home shop.

    Greg
    It's all part of the service here at The House of Pain™

  7. #6
    Join Date
    Jan 2011
    Location
    Far West Wimmera
    Age
    63
    Posts
    2,765

    Default

    Many years ago I operated a couple of induction hardeners at an engineering firm in Adelaide. We did some stuff from Newcastle Steel mill so the big one was top of the range at the time. I rode in a cage along side of the head of the unit with a corded remote to control the process. The vertical traverse was based on a 25ft lathe bed. The top poked out the roof until an extra bit was built over it.

    This unit could do up to about 15in in diameter and about 20ft long. About 1980 it cost around half a mill to buy and setup.

    Dean

Similar Threads

  1. brass hardening
    By Eldanos of KDM in forum HAND TOOLS - UNPOWERED
    Replies: 14
    Last Post: 8th July 2010, 12:56 PM
  2. Hardening Cedar
    By jeffhigh in forum FINISHING
    Replies: 5
    Last Post: 13th May 2010, 10:31 PM
  3. hardening spalted wood
    By PHD1 in forum WOODTURNING - GENERAL
    Replies: 47
    Last Post: 28th June 2006, 07:35 PM
  4. Case hardening
    By Tiger in forum HAND TOOLS - POWERED
    Replies: 15
    Last Post: 1st March 2006, 08:36 AM
  5. Timber hardening
    By boris in forum FINISHING
    Replies: 1
    Last Post: 31st January 2004, 11:01 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •