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View Full Version : Titanium Project

rhorvati
06-30-2009, 10:56 AM
Here is a slide show of the progression of a titanium mountian bike suspension part I made for a friend of mine. The first one I made out of aluminum and after a half season of riding, threads pulled out of the part. This was actually a concern since thread engagement was really compromised due to limited space. I've worked titanium before on the lathe but this is the first time with the CNC mill. I was very pleased and so was my friend with the final results.

http://s25.photobucket.com/albums/c97/CTB1/MTB/Fox%20Shock%20v2/?albumview=slideshow
japcas
06-30-2009, 11:34 AM
Good looking job you done there. How long did it take to do the cnc mill part?
jb-mck
06-30-2009, 10:50 PM
I'm always impressed when viewing other peoples work. Nice job! How is titanium to work with? Hard on tools or no?
rhorvati
07-01-2009, 05:03 PM
Part took a bit over an hour of spindle time on the CNC bill. Titanium cuts nicely but you have to go slow. Unlike aluminum where with the right tools you can't cut it fast enough. Titanium likes slower surface speeds with reasonable feeds. If you try to push the surface speed you will find your cutting edges breaking down very quickly.

There was a lot more work on the lathe. Internal threading on to mate up to the shock body. Take note of the interesting use of a six jaw chuck with two jaws removed to accommodate the shape. This worked very well. My experience with my four jaw chuck was frustrating at best. I was able to rechuck the part, pick up the thread, and take another pass at the threads to get them sized to the shock.
madman
07-16-2009, 11:03 PM
NICE BIKE I am getting into bicycling again. im a older 52 year old guy I drink too much beer but bought a Giant mountain bike 21 speed for 50 bucks Now 20 more bucks later Im peddling my fat ass off so i did a evan (no offence meant) and ordered a gas bicycle kit today for my bicycle so I dont have to sweat peddlin back from the beer store. LOL At 200 miles a gallon it should leave more beer money available in these truly tough ****ty times.
howiesatwork
07-21-2009, 08:41 PM
Nice! Anodized blue it would be even nicer.