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
Platinum
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
A small team of engineers has created a tackling dummy robot that's comparable to training with human players on the football field.
Several plastics and elastomers have come out recently for different parts of cars, as well as for multi-material medical devices and for onboard base station antenna components.
Work in embedding conductive materials into commercially available yarn could lead to energy textiles that store power for use.
A ball bearing developed for turbofan engines by FAG Aerospace of Germany and MTU Aero Engines could have other uses such as turbines, pumps, and gearbox stages.
Fifty-six-year-old Pasquale Russo has been doing metalwork for more than 30 years in a tiny southern Italy village. Many craftsmen like him brought with them fabrication skills when they came from the Old World to America.
More:Blogs|News
Design News Webinar Series
8/13/2015 11:00 a.m. California / 2:00 p.m. New York
6/25/2015 11:00 a.m. California / 2:00 p.m. New York
6/24/2015 11:00 a.m. California / 2:00 p.m. New York
9/10/2015 11:00 a.m. California / 2:00 p.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.
Sep 14 - 18, Controlling Sensors Efficiently with MCUs
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


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 Course August 25-27:
Sponsored by MICROMO
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service