Knurling Titanium

[dogbed]

My brother swears by his safety razor. I'm not sure I could look myself in the mirror long enough to do a good job with one of those.


Nice work!

 

[wquiles]

My brother swears by his safety razor. I'm not sure I could look myself in the mirror long enough to do a good job with one of those.


Nice work!

Thanks )

 

[wquiles]

Can you show more about how you did the setup for that.

Jeff,

My apologies for not answering earlier. In terms of setup, keep in mind that I am using a cut knurler, so with a form knurler, things are probably a little different.

This particular cut knurler has a cutter head that is adjustable up-down on the tool holder. So I keep the tool holder height fixed, and only adjust the actual cutting head.

The adjustment is done by a screw on top, once you loosen the 3-side screws that hold the "head" that holds the cutters in place. Even when I am doing traditional cross-knurling, I always adjust, fine-tune this height so that both cutters are touching the material at the same time. So when I want to do swirl or twist knurling, I simply adjust the head down, like two full turns, so the bottom cutting knurl wheel is not touching the work - only the top one. I then proceed to feed (x-direction) and engage the carriage so the knurl proceeds towards the chuck.

In this picture you can see the top height adjustment screw (with the D and U, for down and Up), and the 3x side screws you tighten once the head is at the right place:



Here, on free-machining brass, I used both methods. First a symmetric knurl, and then in the middle (smaller OD) I did just the twist/swirl knurl:





Here I did both a normal swirl, and a very light swirl:

 

[dave2176]

That is so cool. Where did you get the head?
Thanks,
Dave

 

[churchjw]

Wow incredible work. I have never seen a spiral like that and now I want one. ) I have never read about cut knurls. I will have to look at getting one. Your post help with how they work. Thanks for the post.

Jeff

 

[CNC Dude]

Darn! These shavers look beyond gorgeous! Truly makes me want to build my own.

Here in our local mall they opened up a fancy shaving accessories place (e.g. that is all they sell) and a shaver can be as much as $175.00. PLEASE!!!! They even feel plastic with metallic finish.

OK, let's put it this way. NOW I need to make me one of these!

Thanks for the inspiration!

 

[churchjw]

Yup, now I want one too. It's tough not knowing about the things you just can't live without.:rofl:

Shawn

I feel your pain. :lmao::lmao::lmao::lmao:

Jeff

 

[gsrworks]

Those spiral cut knurls look awesome. I only recently started using my scissor style knurl tool by eaglerock and so far has been really easy. I tried searching for ways to achieve the spiral pattern using a scissor style knurl tool, but didn't find any information.

Is it as simple as using the same direction knurls on the top and bottom? I know you can use a single bump style knurl to achieve a spiral (from seeing failed diamond attempts when only one wheel touches), however was trying to avoid having to use a live center and just use the scissor style.

 

[darkzero]

Those spiral cut knurls look awesome. I only recently started using my scissor style knurl tool by eaglerock and so far has been really easy. I tried searching for ways to achieve the spiral pattern using a scissor style knurl tool, but didn't find any information.

Is it as simple as using the same direction knurls on the top and bottom? I know you can use a single bump style knurl to achieve a spiral (from seeing failed diamond attempts when only one wheel touches), however was trying to avoid having to use a live center and just use the scissor style.

Not trying to nit pick here but as far as I ever knew, the correct term for "spiral knurling" is simply LH/RH single diagonal knurling. Some people may not know what "spiral knurling" is without seeing a pic of it.

Anyways, I also use EagleRock Knurlcraft scissor knurlers, the K1-44 heavy duty scissor to be exact. To get a single diagonal knurl with a scissor tool, simply use two wheels with the same direction rather than a LH & RH diagonal wheels to get a diamond pattern.

I use the HD version cause I knurl Ti with it but I also use solid carbide roll pins & convex wheels for traversing. Generally with knurling you want to avoid double tracking but I sometimes induce double tracking when doing a single diagonal knurl to get a finer pattern without having to change wheel pitch.


Here's two examples Ti 6Al4V done with the same pitch wheels.





With the same pitch, a Ti flashlight made by a well known flashlight maker with my knurling.





And again the same pitch with induced double tracking, a Ti ice pick that I made for Matt at Precision Matthews.

 

[ddushane]

Way Way Cool Wquiles! You're doing an outstanding job! I bet one of those would really look cool anodized in a few different colors. My hat's off to you Sir.

Dwayne