Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Extreme Long Range Hunting & Shooting (ELR)
New ELR bullet
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Deleted member 46119" data-source="post: 1409380"><p>[USER=99239]@THEIS[/USER] and [USER=78438]@nmbarta[/USER] </p><p></p><p>Tungsten is still used in certain projectiles. I'm sure [USER=99239]@THEIS[/USER] knows more about them than I do. Depleted Uranium is used for similar reasons by those allowed to have it. Government organizations.</p><p></p><p>Tungsten in the "normal" "alloys" (actually complex sinterings) quickly fails at several needed attributes, malleability and lubricity among them. </p><p></p><p>While the tungsten "alloys" appear to be machinable without extreme considerations, they do require very hard tooling for most mixes. Note: my research indicates that pure tungsten is not machinable and the tungsten particles are not actually "cut" during the machining process. Instead the binder metal is "cut" or separated form the tungsten. Think ball bearings held together by thick grease parted with a butter knife. The knife does not cut the ball bearings, instead just parting the grease.</p><p></p><p>In low concentrations of the binder metal, often copper, tungsten quickly looses malleability even to the point of brittleness during deformation. This is not so good for a projectile. Depending on the binder and how it is sintered, the projectile could be considered "armor piercing". Not a good thing for a target bullet, fine for a military applications. [USER=7999]@RockyMtnMT[/USER] Steve does not appear to be heading toward military applications.</p><p></p><p>Tungsten is of course very very hard. In the "alloy", exposed crystals or even the more specialized spheres will contact the steel of the barrel. I am pretty sure this will cause premature and extremely unacceptable wear on the rifling.</p><p></p><p>I am looking into coatings and other preparations to shield the barrel from the tungsten particles. Several possibilities but nothing I like yet.</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 1409380"] [USER=99239]@THEIS[/USER] and [USER=78438]@nmbarta[/USER] Tungsten is still used in certain projectiles. I'm sure [USER=99239]@THEIS[/USER] knows more about them than I do. Depleted Uranium is used for similar reasons by those allowed to have it. Government organizations. Tungsten in the "normal" "alloys" (actually complex sinterings) quickly fails at several needed attributes, malleability and lubricity among them. While the tungsten "alloys" appear to be machinable without extreme considerations, they do require very hard tooling for most mixes. Note: my research indicates that pure tungsten is not machinable and the tungsten particles are not actually "cut" during the machining process. Instead the binder metal is "cut" or separated form the tungsten. Think ball bearings held together by thick grease parted with a butter knife. The knife does not cut the ball bearings, instead just parting the grease. In low concentrations of the binder metal, often copper, tungsten quickly looses malleability even to the point of brittleness during deformation. This is not so good for a projectile. Depending on the binder and how it is sintered, the projectile could be considered "armor piercing". Not a good thing for a target bullet, fine for a military applications. [USER=7999]@RockyMtnMT[/USER] Steve does not appear to be heading toward military applications. Tungsten is of course very very hard. In the "alloy", exposed crystals or even the more specialized spheres will contact the steel of the barrel. I am pretty sure this will cause premature and extremely unacceptable wear on the rifling. I am looking into coatings and other preparations to shield the barrel from the tungsten particles. Several possibilities but nothing I like yet. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Extreme Long Range Hunting & Shooting (ELR)
New ELR bullet
Top