Posted on 08/23/2019 9:25:46 PM PDT by 2ndDivisionVet
Rowan University, New Jersey has received $14.5 million from the U.S. Army Research Laboratory (ARL) to develop cold spray additive manufacturing (CSAM). In a project titled Advancing Structural Materials for Army Modernization Priorities via Direct-Write Approaches Rowan researchers will apply technological improvements to enhance the safety of soldiers.
The project teams Rowan University with global supplier of paints, coatings and specialty materials PPG, Drexel University, Northeastern University, and the University of Massachusetts Amherst to create new materials and ways to process them.
Cold-spray additive manufacturing (CSAM)
Cold-spray additive manufacturing involves the acceleration of metal particles with a high-velocity supersonic gas jet, bonding powdered materials upon impact with receiving surfaces or substrates. Faster than the speed of sound, the particle velocity of cold spray enables rapid cure and adhesion of polymers. This results in a fast and efficient production of high performance composite parts or repair of parts.
(Excerpt) Read more at 3dprintingindustry.com ...
Sounds interesting and a more flexible process than SLS (selective laser sintering) that’s been used to additively make metal parts for some time. This could have some clear advantages for sustainment of military equipment if they could make metal parts as needed rather than having to spare and supply them.
Of course it’s just a matter of time before some idiot starts talking about cold-spraying himself up a lower receiver for an AR-15...
The chicoms will have it shortly after it is successful.
Love this article. I am past sleepy, so I was thinking...
A cold spray additive, like Afrin.
Some articles might need a blonde alert tag.
It was far more interesting than any decongestive nose spray article.
So much for thinking gray hair might negate the blonde moments.
According to the Wiki article, Cold spraying was developed in the 1990. While experimenting with the particle erosion of the target, which was exposed to a two-phase high-velocity flow of fine powder in a wind tunnel, scientists observed accidental rapid formation of coatings. This coating technique was commercialized in the 1990s.
So the tech has been around commercially for almost 25 years. The article in this post is quite vague about what ARL is having Rowan University do.
Has anybody heard of Rowan before? Thats a new one for me.
Interesting article. Id not heard of this additive process before.
The Wiki article says there is good deposition efficiency, but they dont provide a number. It also says material that does not adhere to the substrate can be reused. I wonder how the characteristics of rebounded, unadhered particles change and it hose changes affect their deposition in their next shot through the nozzle.
Not familiar with it either. In New Jersey.
So already commercialized? Not much of a step to manufacturing I should think.
Before 1990 there was a spray metal product called Eutectic (sp) but it was not a cold applied material though it was not very high temperature. Supposed to have been developed about 1906.
“So the tech has been around commercially for almost 25 years. The article in this post is quite vague about what ARL is having Rowan University do.”
Exactly correct. As you mentioned it is very vague. As such I find the article worthless unless it mentions the stability of the materials under mechanical stress and heat.
Henry M. Rowan endowment:
Don’t feel bad, I thought it was about cold medicine, too.
I’d call it;
“Rattle Can or
Spray Paint.”
I have utilized hot spray metal processes since 1968. Works well if the parameters are followed.
Thanks, OT. Thats an excellent story about Mr. Rowan. He is a superb example of American ingenuity, hard work, success, and generosity. He is the absolute antithesis of all the Commiecrats running for POTUS. For some reason (probably pure power lust) none of them can grasp the wonders of free markets, capitalism, and how the lure of great rewards motivates men and women to achieve great things and then give away so much of their fortune.
It was sad to read he and his wife lost BOTH of their sons to muscular dystrophy in their twenties. What a horrific tragedy.
Rowan was formerly known as Glassboro State College. The audio company I work for does sound reinforcement for the graduations. Small college that is becoming a respected school.
Awesome... thanks! I do hope everyone got to laugh at me.
I love physics, but I am hampered by a natural blondeness, even gray hair can’t change that.
That is about the time I recall it coming around. We used it for hard facing applications. It took a lot of heat on the base material. Almost like Nitriding.
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