Soft Carbide

This topic has 10 replies, 7 voices, and was last updated 13 December 2017 at 19:04 by V8Eng.

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13 December 2017 at 11:49 #331862
Ian P
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@ianp
The link below is to a nice looking small machine vice which purports to have a hardened body but 'soft' carbide jaws.

I've not heard of this material before but wonder how soft it is

Ian P

**LINK**
Advert

13 December 2017 at 11:49 #25695
Ian P
Participant
@ianp
Is this a good thing for vice jaws?
13 December 2017 at 12:21 #331865
MW
Participant
@mw27036
Hi Ian,

I think the description has made things slightly confusing, because although the material is carbide,

I think they are describing the fact that the jaws have a plain flat face rather than the diamond pattern grippy ones that you often see on bench vices. I have heard the term "aviation" style jaws when they are flat faced for non marking.

Michael W
13 December 2017 at 12:41 #331868
ega
Participant
@ega
Ian P:

Interesting; why not put your question to the seller via his website?
13 December 2017 at 12:44 #331869
Clive Foster
Participant
@clivefoster55965
Carbides come in a wide range of different grades, basically depending on relative proportions of carbide and binder, usually cobalt. Lower percentage of binder makes for a hard but more brittle carbide. High percentage of binder makes for softer but tougher carbide.

So presumably jaw faces are a large piece of carbide with high proportion of binder giving a, hopefully, better balance between toughness and face hardness than the usual tool steel. Possibly a bit gripper too.

Apparently you can now get stone brushes (whatever they may be) with soft carbide bristles!

Clive.
13 December 2017 at 13:55 #331879
Ian P
Participant
@ianp
Posted by ega on 13/12/2017 12:41:06:

Ian P:

Interesting; why not put your question to the seller via his website?

Apparently it is an error in the description. They have told me the jaws are soft so you can 'modify them to suit your own purposes'

Ian P
13 December 2017 at 13:59 #331880
V8Eng
Participant
@v8eng
Cooksons have an offer today, worth checking out if anyone is thinking of ordering.

I have no connection to them just a satisfied customer.

**LINK**

Edited By V8Eng on 13/12/2017 14:00:51
13 December 2017 at 15:38 #331887
Neil Wyatt
Moderator
@neilwyatt
'Offer excludes Gold Bars' thought I could make a killing there…
13 December 2017 at 16:30 #331897
Mick B1
Participant
@mickb1
Posted by Michael-w on 13/12/2017 12:21:48:

Hi Ian,

I think the description has made things slightly confusing, because although the material is carbide,

I think they are describing the fact that the jaws have a plain flat face rather than the diamond pattern grippy ones that you often see on bench vices. I have heard the term "aviation" style jaws when they are flat faced for non marking.

Michael W

I'd always thought that flat, hardened jaws were 'toolroom' jaws, 'cause that's where I got my Record vice from when they closed the tooling department of the teleprinter factory where I was a tool designer. I don't think I'd want diamond pattern jaws now.
13 December 2017 at 16:42 #331899
MW
Participant
@mw27036
Posted by Mick B1 on 13/12/2017 16:30:32:

I'd always thought that flat, hardened jaws were 'toolroom' jaws, 'cause that's where I got my Record vice from when they closed the tooling department of the teleprinter factory where I was a tool designer. I don't think I'd want diamond pattern jaws now.

Hi Mick,

I think you'd also be right, I think the name has a local connection for me, as I live just down the road from what was the old british aerospace engineering plant, now MBDA.

I only use the diamond jaws on my bench vise for hacking up blocks of whatever, but having said that I quite often use two bent pieces of ally plate in between for delicate stuff, maybe I should look at machining some flat jaws.

Michael W
13 December 2017 at 19:04 #331922
V8Eng
Participant
@v8eng
Posted by Michael-w on 13/12/2017 16:42:20:

I only use the diamond jaws on my bench vise for hacking up blocks of whatever, but having said that I quite often use two bent pieces of ally plate in between for delicate stuff, maybe I should look at machining some flat jaws.

Michael W

I thought that is what 1" x 1" Ally Angle is made for!

Edited By V8Eng on 13/12/2017 19:05:10
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