[TheForge] First 'Non-Cuttable' Material in the World: Proteus Could Upgrade Bike Locks, Armor

[Rob Fertner]

Frosty,
When I saw the title of the article I thought it a lot of hype. I would try a handled cold cut and sledge hammer
to see how uncuttable it really is. And what about a plasma cutter? As a "resistant" material it could have some
important uses.

Rob

Bruce, are you saying that us old geezers are left on the forge? 😊



-----Original Message-----
From: theforge-bounces at mailman.qth.net <theforge-bounces at mailman.qth.net> On Behalf Of jerry Frost
Sent: Monday, July 20, 2020 7:19 PM
To: 'Blacksmithing List Sponsored by ABANA' <theforge at mailman.qth.net>
Subject: Re: [TheForge] First 'Non-Cuttable' Material in the World: Proteus Could Upgrade Bike Locks, Armor

That's an interesting article Rob, thanks for the link. I don't know how "Non-cuttable" it is though, it doesn't seem they've tried many cutting methods. I think, like so many youngsters their heads are stuck in an abrasive or saw type cutter, box. Not a word about: tensile, compressive, shear, or impact strength, to name a few. Nuggets in jelly probably wouldn't hold up so well against a nice set of bolt cutters. 

The vibration damaging an abrasive is pretty well known, think of a grinding wheel dresser, the wheels are loose on the axle and wobble slightly, the texture concentrates forces and will eat a grinding wheel in short order.
I've made field expedient wheel dressers with washers on a bolt. 

Another example is trying to cut multiple stacked sheets of sheet metal with almost any kind of saw.

The ceramic spheres in aluminum matrix being extremely resistant to abrasive or saw cutting makes perfect sense. 

But NON-cuttable? Anyone out there want to bet they didn't ask a blacksmith to take a whack at it? 

Just saying, Frosty

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Rob Fertner
Sent: Monday, July 20, 2020 1:56 PM
To: 'Blacksmithing List Sponsored by ABANA'
Subject: [TheForge] First 'Non-Cuttable' Material in the World: Proteus Could Upgrade Bike Locks, Armor

Here's some interesting metal science news about an aluminum alloy with imbedded ceramic grains .

 

https://interestingengineering.com/first-non-cuttable-material-in-the-world-
proteus-could-upgrade-bike-locks-armor

 

Things sure have been quiet lately. Hope everyone is staying safe.

 

Rob

Wichita, KS

 


______________________________________________________________
TheForge mailing list
Home: http://mailman.qth.net/mailman/listinfo/theforge
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:TheForge at mailman.qth.net

TheForge mail list group photo site is
http://www.shutterfly.com
Login: blacksmithblacksmith at hotmail.com
Password: anvil

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message delivered to rfertner at cox.net