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Automation, Control & Plant Intelligence News Updates   |   January, 2018
Additive Manufactured Parts From ITAMCO Outperform 17-4 PH Stainless Steel

Plymouth, Indiana—January 30, 2018—ITAMCO (Indiana Technology and Manufacturing
Companies) has additively printed parts made with EOS 17-4 PH IndustryLine metal
powder that outperformed 17-4 PH Stainless Steel in tensile strength in a recent research
project.

The Research Project
The goal of the research project was to explore the properties of additive-manufactured
parts made with the new EOS Stainless Steel 17-4 PH IndustryLine metal powder for Direct
Metal Laser Sintering (DMLS). ITAMCO prepared the build of nine cylinders with Sunata™
software by Atlas 3D. Sunata automatically chose the best orientation for the parts and
generated the necessary support structures for the build on ITAMCO’s EOS M 290 3D
printer.

Three cylinders were built horizontally, three were built at 45˚ to the horizontal, and three
were built vertically. After the build, the cylinders were cut from the build plate and sent
for heat treatment. The heat treatment followed the recommended steps by EOS. First, the
cylinders were heated to 1040˚ Celsius and kept at that temperature for 0.5 hour. The
cylinders were then quenched by argon. After that, the cylinders were reheated to 480˚
Celsius and kept at the temperature for one hour. The cylinders were quenched again by
argon. The hardness was between 40 and 47 HRC and the estimated tensile strength was
190 KSI after heat treatment.

The cylinders were then shipped to SGS MSi, a metallurgical testing laboratory. The key
results for ITAMCO were the tensile strength (PSI) numbers: The tensile strength of the
nine cylinders outperformed the tensile strength of raw material 17-4 PH that had been
heat treated. The average tensile strength (PSI) of the nine cylinders was 192,000.* The
average tensile strength (PSI) of six heat-treated stainless steels (H900, H1025, H1075,
H1150, H1150-M, H1150-D) is 144,000 (source: https://www.beststainless.com/17-4-phstainless-
steel.html).

(*Call or email Joel Neidig at ITAMCO for the complete test results at (574) 935-6918 or
jdneidig@itamco.com.)

“We conducted the research so we could compare the wrought properties of metal to parts
made through additive manufacturing with the new EOS 17-4 PH Stainless Steel metal
powder. It is quite amazing to us that we achieved the wrought properties of metal,” said
Joel Neidig, Business Development and Technology Manager with ITAMCO.
Another interesting finding from the research was that although the nine cylinder samples
were built with three orientations, the tensile strength, yield strength, elongation and
reduction of area were fairly consistent for all the samples. In other words, the material
properties are near isotropic for those samples built additively with different build
orientations in the EOS M 290 3D printer.

The Future of EOS 17-4 PH IndustryLine Metal Powder at ITAMCO
ITAMCO is building additively manufactured parts for the medical device market;
therefore, the EOS metal powder is of particular interest to the company. EOS Stainless
Steel 17-4 PH IndustryLine is a high-strength, easily curable, highly corrosion-resistant and
acid-resistant material, making it ideal for manufacturing surgical and orthopedic
instruments. However, the product will also be used to build gears and related components
for ITAMCO’s customers in Mining, Oil, Gas, Aerospace, Automotive and Energy. Dr. Tobias
Abeln, Chief Technical Officer at EOS said this about the metal powder: “Planning security
and reliability are top priorities for customers who are engaged in serial manufacturing.
For its Stainless Steel 17-4PH IndustryLine, EOS provides reliable and statistically proven
data for the most important material properties of finished parts.” He added, “This
significantly raises quality standards in Additive Manufacturing. The customer can use the
data 1:1 to qualify the technology for large-scale production and therefore minimize the
time required as well as cut the cost of in-house material and process qualification.”
The “Magic Triangle”

Laura Gilmour, the Global Medical Business Development Manager with EOS North
America recently told Mr. Neidig that ITAMCO was a referred contract manufacturer
because ITAMCO was running the complete EOS solution or the “magic triangle.” Ms.
Gilmour said, “ITAMCO is running the balanced triangle—the combination fully tested by
EOS material scientists in Finland of 17-4 PH IndustryLine metal powder, the grid nozzle
for optimized Argon gas flow, and the scanning parameters provided by EOS.” EOS is
sharing ITAMCO’s tests results with their potential customers. “The referrals and support
by EOS validates our move into additive manufacturing,” said Mr. Neidig. “We are more
than capable of using additive manufacturing to expand our market position and deliver
real benefits to our customers.”

About ITAMCO
Since 1955, ITAMCO has provided open gearing and precision machining services to many
heavy-duty industries including Mining, Off-Highway Vehicles, Marine, and Aviation. In
addition to the company’s offerings in traditional manufacturing, the technology team at
ITAMCO has released over 65 apps for mobile devices; designed and markets iBlue, the first
industrial Bluetooth transmitter; developed an award-winning Google Glass application;
and launched their “Strategic Technology Initiative for Additive Manufacturing” in 2015.
Learn more about ITAMCO at www.itamco.com or call (574) 936-2112.

About EOS
EOS is the global technology and quality leader for high-end solutions in the field of
additive manufacturing. Founded in 1989, EOS is a pioneer and world leader in the field of
Direct Metal Laser Sintering (DMLS) and a provider of a leading polymer technology. Learn
more about EOS at www.eos.info/en.




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