Go Back  Bike Forums > Bike Forums > Framebuilders
Reload this Page >

.1mm makes a difference

Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

.1mm makes a difference

Old 04-16-19, 06:46 PM
  #1  
TiHabanero
Senior Member
Thread Starter
 
Join Date: Nov 2012
Posts: 2,270
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 646 Post(s)
Likes: 0
Liked 20 Times in 19 Posts
.1mm makes a difference

Today I put an end of a True Temper Platinum tube .8mm wall to the grinder just to compare it to the .9mm wall of the RC2 tube. That .1mm makes a huge difference on how easy it grinds and how quickly I was able to grind material away. My initial thought was the harder material would have been more difficult to grind, but that was not the case.
TiHabanero is offline  
Old 04-17-19, 02:07 AM
  #2  
MassiveD
Senior Member
 
Join Date: Jul 2011
Posts: 2,434
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 31 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
No way, an extra 12 % is nothing. Probably not even measurable as against other factors. If it ground more easily, it was the metal. Possibly the tubing isn't harder; doesn't air harden during grinding; or there are things that make soft materials harder to grind within the composition of metal that are not attributable to hardness. The latter is common. For instance materials that create stainless are often harder to grind.

One way to tell if materials are harder than others is through filing. If a files are not abrasive, they cut, and they can gauge materials, there are even special files that measure metal hardness, but any file should let you know the relative hardness of two side by side metals.
MassiveD is offline  
Old 04-17-19, 06:11 AM
  #3  
Nessism
Senior Member
 
Nessism's Avatar
 
Join Date: Jun 2004
Location: Torrance, CA
Posts: 2,719

Bikes: Homebuilt steel

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 9 Times in 9 Posts
I use hand tools to create miter shapes and have found that the old Platinum main tubes were darn hard; noticeably more difficult to file compared to something like Zona.
Nessism is offline  
Old 04-17-19, 12:36 PM
  #4  
TiHabanero
Senior Member
Thread Starter
 
Join Date: Nov 2012
Posts: 2,270
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 646 Post(s)
Likes: 0
Liked 20 Times in 19 Posts
I have to wonder if there is something unusual with this particular tube as I took a hand file to it and didn't think it was all that hard to file away. Ordering a different tube anyway, so this won't be used, but I do find it interesting.
TiHabanero is offline  
Old 04-17-19, 04:14 PM
  #5  
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 18,222
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 33 Times in 30 Posts
I was wondering if it was really hardened
unterhausen is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trek330
Fifty Plus (50+)
30
09-15-12 07:47 AM
seenoweevil
Fifty Plus (50+)
13
08-01-12 03:05 PM
Carcinogent
Bicycle Mechanics
13
04-10-11 05:23 PM
Sherfy
Singlespeed & Fixed Gear
34
12-04-07 11:23 PM
velo
General Cycling Discussion
10
10-10-02 01:16 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.