Can I machine Silver Steel OK with HSS End Mills?

Can I machine Silver Steel OK with HSS End Mills?

This topic has 8 replies, 8 voices, and was last updated 24 November 2017 at 23:02 by Chris Trice.

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24 November 2017 at 20:49 #328983
Men Ifr
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@menifr84251
I'm struggling to get a good answer on this.

I need to make some boring head tools ( I can't buy what I need off the shelf) so silver steel would seem best as it can be hardened.

At the minute I'm just planning to machine alu with the tools I make but at some point would probably want to machine mild steel.

I have a hobby sieg X2 type milling machine and standard HSS end mills.
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24 November 2017 at 20:49 #29771
Men Ifr
Participant
@menifr84251
24 November 2017 at 20:57 #328987
Bizibilder
Participant
@bizibilder
In its soft state (as bought) silver steel can be machined with HSS.
24 November 2017 at 21:13 #328997
Roderick Jenkins
Participant
@roderickjenkins93242
You will need to be very cautious about cutting speeds when you use them though. But, it's the best the Victorians had and they managed so go for it.

Rod
24 November 2017 at 21:17 #329000
Neil Wyatt
Moderator
@neilwyatt
Yes, but it likes sharp tools. Get the best finish you can. It will typically expand slightly on heat treatment, enough to allow you to finish with a stone after hardening.
24 November 2017 at 21:18 #329001
mark smith 20
Participant
@marksmith20
What sort of boring tools are you making. I got a load of excellent HSS ones off ebay that were made by Deckel and mostly unused,they work brilliantly. Many people make similar using silver steel and then hardened.

Edited By mark smith 20 on 24/11/2017 21:20:08

Edited By mark smith 20 on 24/11/2017 21:20:54
24 November 2017 at 22:11 #329009
Anna 1
Participant
@anna1
Hello Mark.

I make my boring tools shanks from silver steel, turned down to the appropriate diameters, then cross drilling at the end at a suitable angle, normally circa 45 degrees to then fit and silver solder an old hss centre drill protruding through the hole. finally grind down the hss centre drill to the form you need. Silver soldering will not affect the hardness of the hss.

regards Anna
24 November 2017 at 22:26 #329011
David George 1
Participant
@davidgeorge1
Some boring tools all are made by myself. Some are silver steel, some are high speed steel with grub screws, some have carbide tips silver soldered in place and some are made from solid high speed steel.

David
24 November 2017 at 23:02 #329020
Chris Trice
Participant
@christrice43267
Cutting oil makes a big difference on silver steel. Neat works well.
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