HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
William K.
User Rank
Platinum
The inexplicable corrosion adventure.
William K.   12/17/2011 8:35:39 AM
NO RATINGS
This is an interesting tale. What is missing is how the problem was solved. I have seen corrosion pop up on machined parts and not had an explanation of how to prevent it from anybody in the shop. Of course, these parts were steel, not stainless, and they were black conversion coating treated. The eventual solution, which met with a lot of complaints, was to boil the parts for a few hours in clean water, with a new batch of water every hour. It seemes that some of the blackening solution had remained in some of the small tapped holes in the fixture, and was responsible for the corrosion.

For the problem with the stainless parts in the story, one fix would be to change to a non-free-machining grade and grind the parts to size. Not a cheap or easy fix, but probably quite effective.



Partner Zone
Latest Analysis
Battery maker LG Chem Power Inc. plans to offer a new cell chemistry that could serve as the foundation for an affordable electric car with a 200-mile driving range by 2017.
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
New developments in sensors span a wide range of applications in all areas of manufacturing and plant automation.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Two students have created a voice-command system for our homes, based on the simple and affordable Raspberry Pi.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service