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
Rifles, Reloading, Optics, Equipment
Gunsmithing
internal threading/boring bar
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="Trickymissfit" data-source="post: 462629" data-attributes="member: 25383"><p>a long time ago Warner Swasey used to sell a line of boring bars that were dead soft, and made of some kind of anti vibration alloy. You couldn't make them chatter! But alas they haven't made them in eons. But you see them used every once in awhile. I'm with Chad on the Sandvic stuff, but for serious stuff that's known to make strange music; I prefer Valenite. Used to hard turn a lot of steel, and this was the goto source for me. Also just because your using a carbide insert dosn't mean you got the right grade insert. And just as much as there are many grades of inserts, there's also other stuff out there. Vasco Supreme or Rex 95 would be great for hard turning a thread (I guess you can still buy it). </p><p> </p><p>With the boring bar setup; you should try to use the minimum amount of bar extention, and make sure the cutting face of the insert is properly aligned (make sure the bar is parallel to the spindle bore as well as centered up right.) Carbide is not as forgiving as high speed steel is, and you maybe seeing a clearence issue. Of course you could try tthe age old coffee can trick<g>!!</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 462629, member: 25383"] a long time ago Warner Swasey used to sell a line of boring bars that were dead soft, and made of some kind of anti vibration alloy. You couldn't make them chatter! But alas they haven't made them in eons. But you see them used every once in awhile. I'm with Chad on the Sandvic stuff, but for serious stuff that's known to make strange music; I prefer Valenite. Used to hard turn a lot of steel, and this was the goto source for me. Also just because your using a carbide insert dosn't mean you got the right grade insert. And just as much as there are many grades of inserts, there's also other stuff out there. Vasco Supreme or Rex 95 would be great for hard turning a thread (I guess you can still buy it). With the boring bar setup; you should try to use the minimum amount of bar extention, and make sure the cutting face of the insert is properly aligned (make sure the bar is parallel to the spindle bore as well as centered up right.) Carbide is not as forgiving as high speed steel is, and you maybe seeing a clearence issue. Of course you could try tthe age old coffee can trick<g>!! gary [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
internal threading/boring bar
Top