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Thunderbird 03-01-2020 01:22 AM

Bench Grinder
 

what grade / type wheel should I be using to shape tool bits?

farmall 03-01-2020 12:38 PM

Re: Bench Grinder
 

https://www.practicalmachinist.com/v...ss-bits-88849/

PM forums are a wonderful place. Check out the Metrology and Transformers, Phase Converters and VFD forums too, but it's all packed with brain food.

If you don't have a copy of this (need not be new, they don't change much) you'll want one. Free .edu (school) download link is safe:

http://library.uc.edu.kh/userfiles/p...20handbook.pdf


Thunderbird 03-02-2020 01:39 AM

Re: Bench Grinder
 

tip top, thanks farmall found m'self another rabbit hole.

farmall 03-03-2020 10:08 AM

Re: Bench Grinder
 

Did he say wabbit hole? :D

https://www.hobby-machinist.com/forums/

https://www.weldingweb.com/

https://forum.millerwelds.com/

Ancient website design but a lot of the content is worthy.
https://www.lifewire.com/google-sear...ebsite-1616499 shows how to search within a website using Google, useful for any forum but especially old ones like finishing.com

JonesL 03-15-2020 02:08 AM

Re: Bench Grinder
 

Fine grain aluminum oxide for HSS cutters. "green" Silicon Carbide for carbide cutters.
And keep the green stone for carbide only, the aluminum oxide wheel for HSS only.



Tin can full of water close at hand so you can keep the temperature down and not take the temper out/soften the cutter.



To get rid on microscopic scratches from the wheel, a diamond hone is a good idea to lap the cutters after sharpening and before use.
Machinery's Handbook can also tell you about the importance of chip breakers and other sharpening tricks.


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