Dead centre temper.

Dead centre temper.

This topic has 7 replies, 5 voices, and was last updated 17 May 2018 at 07:38 by Steve Crow.

Viewing 8 posts - 1 through 8 (of 8 total)

Author

Posts
16 May 2018 at 18:36 #354234
Steve Crow
Participant
@stevecrow46066
I've made a few dead centres for my watchmakers lathe but I can't seem to find any information on the right temperature/colour for tempering.

Can anybody help?

Steve
Advert

16 May 2018 at 18:36 #29815
Steve Crow
Participant
@stevecrow46066
16 May 2018 at 20:00 #354243
Brian H
Participant
@brianh50089
What material have you used to make your centres?

Brian
16 May 2018 at 20:09 #354246
Roderick Jenkins
Participant
@roderickjenkins93242
For a carbon (silver) steel Tubal Cain recommends 200C, which is pale yellow – the first hint of colour when tempering.

HTH,

Rod
16 May 2018 at 21:00 #354254
Steve Crow
Participant
@stevecrow46066
I'm using silver steel.

Thanks Rod. That's harder than I thought.

Steve
16 May 2018 at 21:55 #354259
Mark Rand
Participant
@markrand96270
Hard as you can get it for the dead centre. Either soft or about 30HRc for the live (headstock) centre, so you can turn it concentric when needed.
16 May 2018 at 22:13 #354261
not done it yet
Participant
@notdoneityet
A kitchen oven is good enough for that, as long as the thermostat is accurate (or you know the error!).
17 May 2018 at 07:38 #354298
Steve Crow
Participant
@stevecrow46066
Thanks all! Gas mark 6 it is then – if I can get the lid off my Fray Bentos pie.
Author

Posts

Viewing 8 posts - 1 through 8 (of 8 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- 125 mm chuck onto my lathe
  Started by: Steve Huckins in: General Questions
- 2
- 2
- 28 August 2025 at 15:33
  bernard towers
- Lathe tool inserts
  Started by: Andy Brocklehurst in: Beginners questions
- 9
- 19
- 28 August 2025 at 15:31
  JasonB
- Painting mating surfaces
  Started by: Martin Cooper in: Beginners questions
- 8
- 15
- 28 August 2025 at 15:17
  Richard Simpson
- Bendy Flexible Plywood
  Started by: Henry Buckeldee in: Related Hobbies including Vehicle Restoration
- 12
- 13
- 28 August 2025 at 14:39
  Henry Buckeldee
- Damp engine, Name?
  Started by: sivtek1 in: Stationary engines
- 6
- 14
- 28 August 2025 at 13:58
  cogdobbler
- Mercer comparator gauge repair help.
  Started by: Graeme Seed in: Workshop Tools and Tooling
- 3
- 3
- 28 August 2025 at 09:48
  cogdobbler
- Warco Super Major Milling Machine – Stripping Gearbox
  Started by: Lee Jones 6 in: Manual machine tools
- 7
- 10
- 28 August 2025 at 08:58
  jacobsmess
- Phone Phreaking
  Started by: Michael Gilligan in: Clocks and Scientific Instruments
- 13
- 17
- 28 August 2025 at 08:13
  Roger Hart
- What Did You Do Today 2025 1 2 … 9 10
  Started by: JasonB in: The Tea Room
- 36
- 231
- 28 August 2025 at 00:07
  howardb
- Granville lathe leadscrew change wheel 1 2
  Started by: JACK SIDEBOTHAM in: Help and Assistance! (Offered or Wanted)
- 13
- 31
- 27 August 2025 at 21:06
  Howard Lewis
- Weird electric actuator action
  Started by: ell81 in: Beginners questions
- 5
- 5
- 27 August 2025 at 17:42
  Robert Atkinson 2
- Marcus Oxen … illustrated notebook
  Started by: Michael Gilligan in: The Tea Room
- 2
- 2
- 27 August 2025 at 16:45
  Harry Wilkes
- Museum donation
  Started by: Stephen Wessel 1 in: Introduce Yourself – New members start here!
- 4
- 5
- 27 August 2025 at 13:06
  Michael Gilligan
- Softening epoxy 1 2
  Started by: John Haine in: General Questions
- 21
- 38
- 27 August 2025 at 12:56
  Robert Atkinson 2
- Hereward
  Started by: Richard Simpson in: Model Boats
- 6
- 11
- 27 August 2025 at 11:06
  cogdobbler
- Imperial Bearing Surprise!
  Started by: Peter_H in: General Questions
- 4
- 4
- 27 August 2025 at 10:06
  tonychap
- QCTP for chester lathe 1 2
  Started by: Chris12 in: Beginners questions
- 12
- 32
- 27 August 2025 at 08:17
  Vic
- Bending copper tube?
  Started by: Bo’sun in: Workshop Techniques
- 13
- 16
- 27 August 2025 at 02:05
  cogdobbler
- The skill of the Victorian woodcut engraver
  Started by: vic newey in: The Tea Room
- 5
- 6
- 26 August 2025 at 22:12
  SillyOldDuffer
- Smart & Brown Model L lathe help required
  Started by: AJAX in: Manual machine tools
- 4
- 11
- 26 August 2025 at 21:40
  AJAX
- Myford VMB mill, head lift.
  Started by: lctikka61 in: Manual machine tools
- 3
- 3
- 26 August 2025 at 20:41
  Alan Wood 4
- Raab Style Heibluftmotor
  Started by: JasonB in: Miscellaneous models
- 3
- 7
- 26 August 2025 at 18:53
  JasonB
- 3.5″ Derby 4F – First Loco Build
  Started by: mattleicester in: Locomotives
- 5
- 5
- 26 August 2025 at 17:51
  paul rushmer
- 3″ Castings – Help/Advice needed
  Started by: Andy Porter 1 in: Traction engines
- 5
- 11
- 26 August 2025 at 12:37
  parovoz
- Valve gear problem
  Started by: John Billard 1 in: Locomotives
- 3
- 3
- 26 August 2025 at 09:08
  Charles Lamont

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

September 2025

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies