Keyholes Explained: Research Paves Way for Better AM Parts
March 6, 2019
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Keyholes Explained: Research Paves Way for Better AM Parts |
Using high-speed X-ray technology, researchers reportedly have been able to determine how laser power and speed affect the formation of keyholes,
or pockets produced during additive manufacturing (AM) via the laser
bed fusion process. As a laser travels across a bed of material to
create part layers during 3D printing, voids of various sizes and shapes
form, sometimes resulting in gas pockets that negatively affect part
density and ultimately, quality.
Conventional wisdom has held that powder material or laser strength were
to blame, but a team led by researchers from Carnegie Mellon University
and Argonne National Laboratory believe they have cracked the code,
providing insight on how pocket sizes can be predicted and minimized. |
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Webinar: Simplify Your Metal Additive Manufacturing Workflow |
Register for 3D Metal Printing’s webinar on Wednesday, March 27 from 2 to 3 p.m. EDT and 3D Systems software experts will share valuable insights such as:
- How a streamlined metal AM process will help reduce lead time, allowing you to meet the most demanding customer deadlines;
- How productivity is the critical factor in achieving a fast return on your AM investment and improving business profitability;
- Why an independent integrated software solution is superior to multiple independent AM software solutions;
- The challenges to be aware of when looking to build your AM facilities;
- What to look for in an AM software vendor; and
- A sneak peek at 3DXpert all-in-one integrated AM software.
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Sponsored |
High-Performance Vacuum Debind and Sintering Furnaces |
Centorr Vacuum
Industries is a manufacturer of high performance vacuum debind and
sintering furnaces for the 3D Additive Manufacturing furnace market, as
well as units for Metal and Ceramic Injection Molding. Available with
either metal or graphite hot zones, these units can process all of the
most common metals including Fe-Ni, 316-L, 17-4PH, and Inconel powders
and feedstocks as well as a variety of other materials including
Titanium, tungsten carbide, tool steels, and superalloys. The new
Sintervac AM™ operates at pressures of 0-15 torr as well as positive
pressures of Argon, Nitrogen, or Forming Gas for increased flexibility
of processing binder-jetted parts, while the Workhorse AM™ is used for
the heat treat, annealing, and tempering of laser-sintered parts. For
more information, contact the sales department at 603-595-7233, sales@centorr.com or www.centorr.com. |
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CNH Offers First Plastic 3D Printed Spare Parts, Metal Next |
CNH
Industrial N.V., a major manufacturer comprising such well-known brands
as Case IH and New Holland Agriculture, announced a company first: the 3D printing of spare parts.
The first spare components created via AM include four parts for use on
buses and agricultural equipment, made from plastic. Testing now
underway is expected to lead to production of metal spares, according to
company officials. |
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Sponsored |
RAPID + TCT 2019 - See the Latest 3D Technologies |
Known worldwide as North America’s most important additive manufacturing event, RAPID + TCT
is where the entire community convenes to share what’s new and solve
their toughest manufacturing challenges. See the latest 3D technologies
from 350+ exhibitors, learn real-world additive manufacturing solutions
from industry experts, and network with 6,000+ attendees. |
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Sponsored |
2019 AMUG Conference |
The
AMUG Conference provides a unique additive manufacturing (AM) training
and education experience. Designed to facilitate information exchange
between AM users, the conference brings together individuals of all
experience levels that wish to do more with AM. What makes the AMUG
Conference particularly unique is the openness of attendees and their
willingness to share. The AMUG Conference runs from March 31 to April 4,
2019. For information and links to registration, visit www.amug.com. |
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Coming in the Spring 2019 Issue |
RAPID + TCT Preview—Get
the lowdown on this major North American 3D printing event, May 20-23
in Detroit, MI, and see what new technology will be on display.
AMUG Wrapup—AMUG’s stellar conference package combined
with education-based exhibits delivers a heap of must know AM
info...find out what the editors of 3D Metal Printing saw and heard. |
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