Researchers measure electron emission to improve understanding of laser-based metal 3-D printing

Researchers measure electron emission to improve understanding of laser-based metal 3D printing
Researchers measured the emission of electrons from the surface of stainless steel under laser powder bed fusion (LPBF) conditions, demonstrating the potential for using thermionic emission signals to detect phenomena that can produce defects in parts and improve understanding of the LPBF process. The top image shows a multi-physics simulation of laser-induced melting of stainless steel, showing the electron emission signal primarily produced at the front of the surface depression. The bottom image depicts cross-sections of laser tracks produced in stainless steel. Monitoring of the thermionic emission can detect transition between conduction (left) and keyhole (right) mode welding regimes. Credit: Aiden Martin/LLNL

Lawrence Livermore National Laboratory (LLNL) researchers have taken a promising step in improving the reliability of laser-based metal 3-D printing techniques by measuring the emission of electrons from the surface of stainless steel during laser processing.


Researchers collected thermionic emission signals from 316L stainless steel under laser powder

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A mysterious metal monolith was found in the Utah desert. Now it has vanished.

Stumbled upon by bighorn sheep counters, the tall metal object in the Utah desert baffled officials — and delighted the public, who began speculating on a scene straight out of a science-fiction movie.

Metal monolith discovered in remote Utah desert

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There were theories — the work of an artist? aliens? — but no one seemed to know who put it there or why.

Now the monolith has vanished, leaving the curious with even more questions. The Utah Bureau of Land Management said this weekend that it has heard of “a person or group” removing the object on Friday night.

“We have received credible reports that the illegally installed structure, referred to as the ‘monolith’ has been removed from Bureau of Land Management (BLM) public lands by an unknown party,” the bureau said in a statement that was posted on Facebook. It added that it

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National Digest: Metal monolith found in Utah desert has vanished

Now the monolith has vanished, leaving the curious with even more questions. The Utah Bureau of Land Management said this weekend that it has heard about “a person or group” removing the object on Friday night.

“We have received credible reports that the illegally installed structure, referred to as the ‘monolith’ has been removed from Bureau of Land Management (BLM) public lands by an unknown party,” the bureau said in a statement, adding that it does not investigate “crimes involving private property,” such as the monolith.

Utah Highway Patrol Cpl. Andy Battenfield confirmed to The Washington Post on Sunday that the structure is gone but said he could not speak to who took it or when.

The Utah Department of Public Safety was surveying sheep by helicopter Nov. 18 when workers discovered the monolith “installed in the ground in a remote area of red rock,” authorities said.

The Department of

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Metal monolith found in Utah desert has vanished, officials say

Now the monolith has vanished, leaving the curious with even more questions. The Utah Bureau of Land Management said this weekend that it has heard of “a person or group” removing the object on Friday night.

“We have received credible reports that the illegally installed structure, referred to as the ‘monolith’ has been removed from Bureau of Land Management (BLM) public lands by an unknown party,” the bureau said in a statement, adding that it does not investigate “crimes involving private property” such as the monolith.

Utah Highway Patrol Cpl. Andy Battenfield confirmed to The Washington Post on Sunday that the structure is gone but said he could not speak to who took it or when.

So people are left to wonder.

“The space aliens returned to remove it,” one person commented on Facebook beneath the Bureau of Land Management’s update. “The structure had gathered the needed data. That’s what

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Mysterious Metal Monolith In Utah Desert Suddenly Vanishes

A mysterious metallic monolith discovered deep in a Utah desert has suddenly vanished just days after it was first spotted by biologists from the air.

The 12-foot-tall structure apparently disappeared Friday night, according to “credible reports,” the Utah Bureau of Land Management said in a statement.

The “illegally installed structure” was removed by an “unknown party,” and not by department personnel, according to the BLM. There will be no investigation into its disappearance by the BLM because it’s “private property” and not part of the public lands, the statement added.

In the missing monolith’s place were some red rocks and a metallic triangle.

The monolith, which

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Ambri Inks Agreement With TerraScale’s Energos Reno Project To Deploy Proprietary Liquid Metal Battery Technology

CULVER CITY, Calif. and MARLBOROUGH, Mass., Nov. 24, 2020 /PRNewswire/ — TerraScale, a clean infrastructure design and development firm committed to transforming and modernizing digital infrastructure, today announced that it has signed an agreement with Ambri, to deploy its proprietary Liquid Metal Battery technology. As part of the agreement, TerraScale and its data center development partners will integrate an Ambri energy storage system for its Energos Reno project. The project will include the development of a data center that will capitalize on the site’s renewable energy infrastructure. The reduced carbon operations are of strong interest to TerraScale’s data center future tenants including large commercial and government data users, as sustainable data center demands continue to rise.

Together with its partners, TerraScale’s Energos Reno Project intends to deploy green data center technologies that are based on proprietary, high-performance energy production and data computing processes. Energos Reno is a 3,700

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Theories abound over mystery metal monolith found in Utah

A giant, metal mystery slab has captured the attention of millions, as people speculate over how such a structure came to be in a remote part of southern Utah.



a close up of a rock wall: Photograph: Utah Department of Public Safety/Reuters


© Provided by The Guardian
Photograph: Utah Department of Public Safety/Reuters

The object was first spotted last week by a helicopter pilot and wildlife officers who were flying above the rugged area to conduct an annual count of bighorn sheep for the state. It immediately drew comparisons to the monolith featured in 2001: A Space Odyssey as well as inviting suggestions it could be the work of extraterrestrials.



a close up of a rock wall: The metal monolith found in a remote part of Utah.


© Photograph: Utah Department of Public Safety/Reuters
The metal monolith found in a remote part of Utah.

The helicopter pilot, Bret Hutchings, had the opportunity to see the big metal slab up close and guessed it was probably the work of an artist and between 10ft and 12ft high (about 3 metres).

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Utah monolith: Metal structure found in red-rock desert compared to ‘2001: A Space Odyssey’

“He’s like: ‘There’s this thing! There’s this thing back there! We got to go look at it!’” Hutchings said.

Joking that they were intrepid explorers investigating an alien life form, the crew members determined that the monolith was 10 to 12 feet tall and planted firmly in the ground. It seemed to them like more of an artistic expression than part of a scientific experiment.

But mostly, it looked like something out of a science-fiction novel.

“We were kind of joking around that if one of us just suddenly disappears, I guess the rest of us make a run for it,” Hutchings told KSL, chuckling.

It was not clear who installed the monolith, which Hutchings designated the strangest discovery he’s made in years of flying over the Utah desert. The state Department of Public Safety will not disclose its exact location, warning that people who try to visit it might

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Review: A punk drummer’s life upended in ‘Sound of Metal’

The film “Sound of Metal” starts with the uncomfortably loud noises of guitar feedback and ends two hours later with absolute silence. The trip through those extremes is a worthy one, if sometimes exasperating.

British actor and rapper Riz Ahmed absolutely shines as Ruben Stone, an American punk-metal drummer whose life is upended when he abruptly loses his hearing while on tour.

“Eliminate all exposure to loud noises,” a doctor advises Ruben. That’s not so easy. He’s a punk-metal drummer, after all. Loud noises is what he does.

The diagnosis threatens Stone’s livelihood but also his four-year streak at sobriety. His girlfriend and bandmate (a superb Olivia Cooke) convinces him to drive their Airstream across the country to a rehab facility that specializes in deaf addicts. There he must leave her and learn how to be deaf. And that’s where most films would usually end.

But that’s not what director

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Global Metal Machining Market 2020-2024: Market Analysis, Drivers, Restraints, Opportunities, and Threats

The metal machining market is expected to grow by USD 13.32 billion, progressing at a CAGR of over 4% during the forecast period. Download Free Sample Report

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20201116005056/en/

Technavio has announced its latest market research report titled Global Metal Machining Market 2020-2024 (Graphic: Business Wire)

The demand from the oil and gas sector is one of the major factors propelling the market growth. However, factors such as the shortage of skilled workforce will hamper the market growth.

More details: https://www.technavio.com/report/metal-machining-market-industry-analysis

Metal Machining Market: End-user Landscape

Based on the End-user Landscape, the automotive industry segment is expected to post significant growth during the forecast period.

Metal Machining Market: Geographic Landscape

By geography, APAC is going to have a lucrative growth during the forecast period. About 36% of the market’s overall growth is expected to originate from APAC. China, Japan, and India

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