HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
Ann R. Thryft
User Rank
Blogger
Re: strength
Ann R. Thryft   8/26/2013 4:42:00 PM
NO RATINGS
TJ, you're welcome. I agree, that's an especially informative video.

TJ McDermott
User Rank
Blogger
Re: strength
TJ McDermott   8/26/2013 3:07:13 PM
NO RATINGS
Thank you Ann!  The metal video was terrific.

Ann R. Thryft
User Rank
Blogger
Re: strength
Ann R. Thryft   8/26/2013 2:06:28 PM
NO RATINGS
Both metal and sand printing processes are described here http://exone.com/materialization/what-is-digital-part-materialization/explanation-technology The metal process uses a print head that distributes the binder into beds of specially formulated materials. It is then sintered in an oven. A secondary process may also be applied to reach near-100% density. This page also has videos demonstrating the process.

TJ McDermott
User Rank
Blogger
Re: strength
TJ McDermott   8/26/2013 1:41:33 PM
NO RATINGS
Strength was my thought as well naperlou. I'd wondered if this was a variation on sintering, or if this process fully melted the materials.

Ann R. Thryft
User Rank
Blogger
Re: Ceramic engines?
Ann R. Thryft   8/26/2013 1:02:39 PM
NO RATINGS
78RPM, one of ExOne's customers might be looking into a ceramic engine--or more likely, certain engine parts in ceramics, most likely ceramic matrix composites. GE Aviation is already doing this in turbine nozzles:
http://www.designnews.com/author.asp?section_id=1392&doc_id=264282&page_number=2



78RPM
User Rank
Gold
Ceramic engines?
78RPM   8/26/2013 11:37:51 AM
I wonder if the company is looking into the possibility of finally creating a ceramic engine. Internal combustion engines attain greater efficiency at high temperatures. But materials limit the temperature permitted. Is it possible that 3D printing could pemit creation of a practical ceramic engine?

naperlou
User Rank
Blogger
strength
naperlou   8/26/2013 10:16:41 AM
NO RATINGS
Ann, this is interesting, but how does the strength of these printed metal parts compare with forged parts, or with polymers?  The reason I ask is that in some manufacturing areas the introduction of Metal Injection Molding (MIM) parts has caused concern.  Typically these parts are not as strong as forged or machined parts.  They are used where that level of strength is not required.  I would think that printed metal parts would fit into this range as well.



Partner Zone
Latest Analysis
Researchers in Canada have developed a chin strap that harvests energy from chewing and can potentially power a digital earplug that can provide both protection and communication capabilities.
In case you haven't heard, the deadline to enter the 2014 Golden Mousetrap Awards is coming up fast Oct. 28! Have you entered yet?
Made by Monkeys highlights products that somehow slipped by the QC cops.
A Tokyo company, Miraisens Inc., has unveiled a device that allows users to move virtual 3D objects around and "feel" them via a vibration sensor. The device has many applications within the gaming, medical, and 3D-printing industries.
In the last few years, use of CFD in building design has increased manifolds. Computational fluid dynamics is effective in analyzing the flow and thermal properties of air within spaces. It can be used in buildings to find the best measures for comfortable temperature at low energy use.
More:Blogs|News
Design News Webinar Series
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
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: October 2
Sponsored by Altera
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