Advertise on Bikeforums.net



User Tag List

Results 1 to 18 of 18
  1. #1
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    cost of titanium stock

    Im interested in making a bolt from titanium in my machining class as my next project. Does anybody know pricing for round titanium stock?
    C://dos
    C://dos.run
    run.dos.run

  2. #2
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
    Join Date
    Oct 2003
    Location
    NYC
    My Bikes
    04' Specialized Hardrock Sport, 03' Giant OCR2 (SOLD!), 04' Litespeed Firenze, 04' Giant OCR Touring, 07' Specialized Langster Comp
    Posts
    15,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    From McMaster, just a couple of examples:

    Titanium Grade 2 Rod 5/16" Diameter, 1' Length
    In stock at $16.55 Each

    That oughta be enough to machine a 1/2-20 bolt out of.

    Titanium Grade 5 Sheet .063" Thick, 24" X 36"
    $916.57 Each. Usually ships within 2 weeks.

    So what you can do is, get the 24x36 sheet, bend it into octagonal tubes, weld them together, and voila, homemade litespeed!

  3. #3
    Chronic Tai Shan ofofhy's Avatar
    Join Date
    Oct 2004
    Location
    PHL
    My Bikes
    '74 Fuji SRS
    Posts
    1,115
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by slvoid
    From McMaster, just a couple of examples:

    Titanium Grade 5 Rod 1" Diameter, 6' Length
    In stock at $493.30 Each

    Titanium Grade 5 Sheet .063" Thick, 24" X 36"
    $916.57 Each. Usually ships within 2 weeks.

    So what you can do is, get the 24x36 sheet, bend it into octagonal tubes, weld them together, and voila, homemade litespeed!
    That's one long bolt!

    You might call around to scrap metal places, and see if they have bits and pieces of material lying around. Or a local machine shop.
    From Craig's List: IF its a singlespeed that means----all the other parts are broken cut off and dumped...dont buy singlespeeds, the bikes will make your balls fall off

    * no -- it's NOT ok to contact this poster with services or other commercial interests

  4. #4
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
    Join Date
    Oct 2003
    Location
    NYC
    My Bikes
    04' Specialized Hardrock Sport, 03' Giant OCR2 (SOLD!), 04' Litespeed Firenze, 04' Giant OCR Touring, 07' Specialized Langster Comp
    Posts
    15,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ofofhy
    That's one long bolt!

    You might call around to scrap metal places, and see if they have bits and pieces of material lying around. Or a local machine shop.
    LOL, i revised it, he can order 1ft stock instead of 6ft.

  5. #5
    Sore saddle cyclist Shifty's Avatar
    Join Date
    Jan 2005
    Location
    Eugene, OR
    My Bikes
    Road, touring and mountain
    Posts
    3,759
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Don't forget to look up Ti on your feed and speed chart. It is harder than stainless steel, so go slow and pour on the coolant. Get the hardest and newest tools also.
    Those voices in your head aren't real, but they have some great ideas

  6. #6
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yea they have tools to cut titanium they have done it before. But the school obviously wont supply that becuase of the price. I only want maybe a 1 foot round stock maybe 1/2 inch in diameter. I will check local shops
    C://dos
    C://dos.run
    run.dos.run

  7. #7
    Chronic Tai Shan ofofhy's Avatar
    Join Date
    Oct 2004
    Location
    PHL
    My Bikes
    '74 Fuji SRS
    Posts
    1,115
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Shifty
    Don't forget to look up Ti on your feed and speed chart. It is harder than stainless steel, so go slow and pour on the coolant. Get the hardest and newest tools also.
    Second on the coolant. I almost scrapped out a whole batch of barstock when some maroon used a chop saw without coolant to get the metallurgical samples. It buggered up the microstructure pretty bad.
    From Craig's List: IF its a singlespeed that means----all the other parts are broken cut off and dumped...dont buy singlespeeds, the bikes will make your balls fall off

    * no -- it's NOT ok to contact this poster with services or other commercial interests

  8. #8
    Member
    Join Date
    Nov 2004
    Posts
    34
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have worked with this guy before, prices are reasonable. http://titaniumjoe.com/

  9. #9
    Senior Member keayne's Avatar
    Join Date
    Mar 2005
    Location
    Saan Penn, BC
    My Bikes
    Steve Bauer touring
    Posts
    123
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by phantomcow2
    Im interested in making a bolt from titanium in my machining class as my next project. Does anybody know pricing for round titanium stock?
    phantomcow2 - I see you already have Joe's addy - how about this one http://metals.about.com/od/tubesuppliers/
    Last edited by keayne; 04-11-05 at 07:43 PM. Reason: addy

  10. #10
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
    Join Date
    Oct 2003
    Location
    NYC
    My Bikes
    04' Specialized Hardrock Sport, 03' Giant OCR2 (SOLD!), 04' Litespeed Firenze, 04' Giant OCR Touring, 07' Specialized Langster Comp
    Posts
    15,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ofofhy
    Second on the coolant. I almost scrapped out a whole batch of barstock when some maroon used a chop saw without coolant to get the metallurgical samples. It buggered up the microstructure pretty bad.
    To get good microstructure, use a diamond wheel with a LOT of oil. Then grind at 100-220 grit for like 30 minutes on the polisher.

  11. #11
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ooh thats right. ANd i just learned they have a polishing machine today. FUn fun
    C://dos
    C://dos.run
    run.dos.run

  12. #12
    Chronic Tai Shan ofofhy's Avatar
    Join Date
    Oct 2004
    Location
    PHL
    My Bikes
    '74 Fuji SRS
    Posts
    1,115
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by slvoid
    To get good microstructure, use a diamond wheel with a LOT of oil. Then grind at 100-220 grit for like 30 minutes on the polisher.
    Yeah, the supplier was cutting the samples for us and mounting and polishing them. Just to save us time as we didn't have a full time tech. I guess they had a new guy or something. It was a huge batch that we would have had to send back.
    From Craig's List: IF its a singlespeed that means----all the other parts are broken cut off and dumped...dont buy singlespeeds, the bikes will make your balls fall off

    * no -- it's NOT ok to contact this poster with services or other commercial interests

  13. #13
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
    Join Date
    Oct 2003
    Location
    NYC
    My Bikes
    04' Specialized Hardrock Sport, 03' Giant OCR2 (SOLD!), 04' Litespeed Firenze, 04' Giant OCR Touring, 07' Specialized Langster Comp
    Posts
    15,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm not sure why you would need to examine microstructure in a metal shop class, but here's how i usually do it.
    Use a diamond disc real slow to get the surface of the sample relatively smooth. Move onto the polisher at 220 grit for about 30 minutes. Then wash and rinse everything as clean as possible. Rinse it with alcohol. Demagnatize if material is magnetic, switch to 1200 grit disc, rinse and repeat. Then move onto cloth discs with 10 micron and then 1 micron. Finally, polish with .01 micron alumina and you now have a telescope grade shiny piece of steel. Etch to reveal grains and now you can see the microstructure.
    Whatever you do, keep your sample clean and never ever transfer anything from one stage to another.

  14. #14
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
    Join Date
    Oct 2003
    Location
    NYC
    My Bikes
    04' Specialized Hardrock Sport, 03' Giant OCR2 (SOLD!), 04' Litespeed Firenze, 04' Giant OCR Touring, 07' Specialized Langster Comp
    Posts
    15,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ofofhy
    Yeah, the supplier was cutting the samples for us and mounting and polishing them. Just to save us time as we didn't have a full time tech. I guess they had a new guy or something. It was a huge batch that we would have had to send back.
    Even if they did it using a chop saw, couldn't you put it inside the polisher and run it for like an hour on 100 larger grit?

    Where I used to work, we had a struer like this:
    And yea... complete with cheap kitchen timer.

  15. #15
    Chronic Tai Shan ofofhy's Avatar
    Join Date
    Oct 2004
    Location
    PHL
    My Bikes
    '74 Fuji SRS
    Posts
    1,115
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    No auto polisher, and in an FDA controlled environment, the QC folks demanded a separate sample. This was a big stink until they figured out what went wrong on their end. Even after the one sample revealed a good microstructure, we had to take 6 more from different spots in the batch. Overkill since we hadn't had a problem in over twenty years with this supplier. We used to call our QC guy the Dentist, because going to him was like pulling teeth.
    From Craig's List: IF its a singlespeed that means----all the other parts are broken cut off and dumped...dont buy singlespeeds, the bikes will make your balls fall off

    * no -- it's NOT ok to contact this poster with services or other commercial interests

  16. #16
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
    Join Date
    Oct 2003
    Location
    NYC
    My Bikes
    04' Specialized Hardrock Sport, 03' Giant OCR2 (SOLD!), 04' Litespeed Firenze, 04' Giant OCR Touring, 07' Specialized Langster Comp
    Posts
    15,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ooo FDA, you guys get all the funky edible lubes.

  17. #17
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I should take notes
    C://dos
    C://dos.run
    run.dos.run

  18. #18
    Chronic Tai Shan ofofhy's Avatar
    Join Date
    Oct 2004
    Location
    PHL
    My Bikes
    '74 Fuji SRS
    Posts
    1,115
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by slvoid
    Ooo FDA, you guys get all the funky edible lubes.
    No, that would have been our consumer products division, this was in the professional division (too bad).

    But, in college I did have a friend whose father was a scientist with a condom company in Dothan, AL. Now that would have been a good internship opportunity.
    From Craig's List: IF its a singlespeed that means----all the other parts are broken cut off and dumped...dont buy singlespeeds, the bikes will make your balls fall off

    * no -- it's NOT ok to contact this poster with services or other commercial interests

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •