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Woodruff cutter making
#1
Hi Chaps 

Pete's post got me thinking of when I needed an odd size woodruff cutter to cut the key seat in my CUB lathe cross slide lead screw I was making , I actually though I had this base covered 
as I have a good selection of said cutters ,but there is always one you dont have . So being Sunday as well I set about making one from the end of a drill bit .

The drill bit . 

[Image: P1030028_zpsybfpcttq.jpg]

The MT shanks are soft enough to turn and are  HSS  , so a quick zip with a zip disc and off came the hard fluted part . 

[Image: P1030029_zps6qwsqtxv.jpg]

I gave the centre a quick clean up to remove the rust and crud .

[Image: P1030031_zpsnhfsvzid.jpg]


Then slapped it in the Boxford lathe for a spin . 

Ruffed the shank down .

[Image: P1030032_zpswjqmsobv.jpg]

Finished to size , ready to cut some relief.

[Image: P1030034_zpsfpnnaqwj.jpg] [Image: P1030036_zps2hgod5mp.jpg]
[Image: P1030037_zpsvmgkjvta.jpg]

Parting off .

[Image: P1030038_zpsjmdkfluz.jpg]

Spun round in the chuck , cutter od turned to finish size and some relief on the outer face being put on .  I used magic marker to see were I was at as I did not want the 
cutter to end up to narrow . 

[Image: P1030039_zpskogki451.jpg]
[Image: P1030040_zps8ivnbpf1.jpg]

Job still in the chuck , chuck removed from lathe and fit to dividing head . 

[Image: P1030041_zpszgco9uji.jpg]

Teeth cut .

[Image: P1030042_zpsnagbyjuk.jpg]


Cutting edge relief . 

[Image: P1030043_zps580oskrp.jpg]

Sorted . 

[Image: P1030044_zps0o3yhye7.jpg]


Now to harden it ( not the correct way to treat HSS ) I just heated it up cherry ,held it for a minute and stuck it into a bucket of water . 

[Image: P1030045_zps02evuwyp.jpg]

I did not have a TCG at the time so a few strokes with a wet stone and off I went . 

[Image: P1030046_zpsx8qkpuax.jpg]


Job done  Big Grin




Rob
Reply
Thanks given by: aRM


Messages In This Thread
Woodruff cutter making - by RobWilson - 09-11-2015, 09:38 AM
RE: Woodruff cutter making - by EdK - 09-11-2015, 10:37 AM
RE: Woodruff cutter making - by Highpower - 09-11-2015, 04:03 PM
RE: Woodruff cutter making - by Roadracer_Al - 09-11-2015, 11:27 AM
RE: Woodruff cutter making - by RobWilson - 09-11-2015, 11:44 AM
RE: Woodruff cutter making - by krv3000 - 09-11-2015, 04:24 PM
RE: Woodruff cutter making - by PixMan - 09-12-2015, 10:26 PM
RE: Woodruff cutter making - by RobWilson - 09-13-2015, 12:51 AM
RE: Woodruff cutter making - by DaveH - 09-13-2015, 07:23 AM
RE: Woodruff cutter making - by RobWilson - 09-13-2015, 07:49 AM
RE: Woodruff cutter making - by Mayhem - 09-13-2015, 08:03 AM



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