How Our Demo at IMTS Will Shape How You View Machining

By NC

Hi, I’m NC Kishore, Senior Technical Specialist at DELMIA. This blog is the first of many Manufacturing posts that you’ll see from me on the topic of Machining.

Let me ask you this. When you think of machining, what’s the first thing that comes to mind? Is it images of your high school shop teacher’s class or simply the stark environment where machine tools are cutting, shaping and drilling metals, plastics and more? Today’s modern machine shop can be, and is, so much more. We would like to show you why that is at the Dassault Systèmes booth at the upcoming International Manufacturing Technology Show (IMTS).

IMTS Machining

The 4th Industrial Revolution Has Started. See It At IMTS, Booth E-3125.

At the booth, you can expect to see a Single Source for Speed—an Industry Solution Experience for industrial equipment companies that need to manage their entire product development process – from idea to design, production and servicing – across all geographic locations. Our DELMIA representatives will be there to support this experience with our own DELMIA Machining demonstration.

We will be featuring the 3DEXPERIENCE for Machining. During our demo, find out why DELMIA Industrial Equipment Machining enables manufacturers to program, simulate and optimize machining processes through tight integration of tool path programming with machine tool simulation. Come see how NC programmers, for example, can identify and resolve errors in tool paths earlier and reduce programming lead times. With capabilities to capture and reuse best practice knowledge, NC programmers can program smarter and faster while maintaining the quality of the programs and precision on parts machined.

Does this sound like something you would like to see? Let me know in the comments below.

Just be sure to join us at IMTS 2014 September 8 – 13 at the McCormick Place in Chicago and stop by the Dassault Systèmes  Booth, #E-3125 for more information on DELMIA IE Machining.

If you would like to continue the technical conversation on machining, go where all the experts are. Join the conversation at the DELMIA Machining Community!

Learning from Nature Fuels Aerospace Innovation

By Catherine

Written by Catherine Bolgar

Imagine a trans-Atlantic flight in the future: you’re sitting on seats whose fabrics resist dirt, the way lotus flowers remain clean and dry in a wet and dirty environment. The plane’s exterior is covered with tiny ridges, like sharkskin, which reduce drag. The plane is part of a scheduled V-formation, which saves fuel.

Icarus donned man-made wings in Greek mythology. Leonardo DaVinci drew flying machines. “In the 21st century, we’re not just trying to emulate bird-flight, but trying to understand how birds are so successful,” says Norman Wood, an expert on aerodynamics and flow control at Airbus.

Flying bee

Imitating nature has a name: biomimicry. It has three aspects, Dr. Wood explains.

First is nature as a mentor. We observe how living things succeed and understand what they’re doing. “It’s the art of the possible,” Dr. Wood says. “If we want aerospace vehicles to improve, we can say, ‘Insects can do it—so why can’t we?’”

Second is nature as a model. “We can ask, ‘How do insects fly—and can we transfer their approach into aerospace vehicles?” he says.

Third is nature as a measure. Simple calculations show that bees shouldn’t be able to fly and yet they are extremely successful. “Using the techniques bees use to achieve flight, we can measure how successful we could be ultimately—and how much further we could take a technology if we were to be as efficient as nature,” Dr. Wood says.

Nature by definition is successful,” he says. “So it’s an extremely good benchmark. We’re now moving into a deeper investigation, known as biomimicry, understanding the details of what nature can achieve and using that to fuel our innovation.”

Nature by definition is successful Tweet: “Nature by definition is successful” – @Airbus learns from nature to fuel innovation: http://ctt.ec/f425O+ via @Dassault3DS #biomimicry”

Take sharkskin, which is covered with rough, dermal denticles (hard, tooth-like scales) that decrease drag. Transferring that technology on to aircraft would cut fuel-consumption and thus reduce emissions.

Shark skin

Airbus has developed an aerospace surface with “riblets” that resemble shark skin.

Small patches of sharkskin-like material are currently undergoing tests on Airbus aircraft in commercial service in Europe, to see how it stands up to rain, hail, cleaning, ground contamination and other challenges.

Birds are an obvious model for aerospace biomimicry. Hawks survive thanks to their ability to execute extreme maneuvers in woodlands, or over cliffs, in order to catch their prey. They do it by maneuvering at or very near to their “maximum lift” condition. For aircraft, maximum lift is the point at which they can no longer stay in straight and level flight and stall, experiencing a sudden decline in lift.

Hawk

Pilots, aircraft owners and makers are legally required to maintain a safety margin from that condition occurring.

Many birds fly near maximum lift by using feathers on the top of their wings to detect when the airflow over the wings reaches that condition. The bird has evolved a nervous system that enables it to quickly modify its wing shape to manage the flow near maximum lift to maintain safe flight and maximum performance.

Airbus is looking at how to use surfaces on the wing to replicate the control demonstrated by birds.

Can we react quickly enough to define how we can make small changes to the wing and not go beyond a safe condition?” says Dr. Wood. “Our aspiration would be that we create an aircraft in the future that has its own nervous system. A bird doesn’t think, ‘oh, I’m at maximum lift and I have to do this.’ It makes the change automatically.”

The result could allow lower approach and takeoff speeds, as well as lighter wings, saving weight and therefore fuel.

Not all biomimicry involves new technology. Migrating birds fly in V-shaped formations partly because birds behind the leader can save a lot of energy, by flying in its wake.

Geese in flight

Transferring that to aerospace was assumed to require that aircraft fly close together, presenting traffic control, piloting and safety concerns. However, “as we get more understanding as to how and why birds do it, we find that the flapping of their wings destabilizes the wake behind them. So they have to fly close together to gain benefit.”

Aircraft get thrust from engines, not from flapping their wings, so the wake is not so chaotic. “We have the luxury of having fixed-wing aircraft, a structure that allows the benefit to persist, sometimes for many miles downstream, to trailing aircraft,” he says.

NASA recently demonstrated a 5% to 10% fuel saving by flying aircraft in formation up to a kilometer apart. Such a gap eliminates many of the issues of having commercial aircraft flying close together.

Over 400 commercial flights cross the North Atlantic in each direction every day. If even half were arranged into formations, “the impact on fuel-burn on those routes could be significant,” Dr. Wood says. “With no change to aircraft, we can achieve fuel savings. It’s one example where we can potentially exceed the benefits produced by nature.”

For more from Catherine, contributors from the Economist Intelligence Unit along with industry experts, join The Future Realities discussion.

World-Changing Dreamers

By Aurelien

IFWE

“IF WE ask the right questions, we can change the world”… Last summer, we asked what were YOUR World-Changing Dreams. The idea was pretty simple: sharing dreams with just a sentence beginning with the words “IF WE”.  Through a contest called the “IF WE Challenge”, we would collect those through Facebook, Twitter, 3ds.com, our blogs and third-party blogs. Oh, and because you could share your “IF WE” Dream through Twitter, it had to be not longer than 140 characters… pretty much a challenge in itself! :)

Anyway, we collected as many as 550 contributions from all over the world! We boiled them down to about 85 of them (with criteria of interest, feasibility, fit with sustainability…). Then we got back in touch with authors and asked them for more details about their ideas. Boiled down again to about 20 that we submitted to the final Jury. Then the Jury came up with our 3 final lucky winners (in our next blog post series, we’ll let you know more about each winner and their respective projects):

  1. Geoffrey Cooper, Canada: “IF WE designed a rolling tree planting robot, we could send them out to replant forests and restore deserted lands. Let’s make it happen!”
  2. Ismael Moreno Cendejas, Mexico: “IF WE design more exoskeletons we can help more people with different capacity”
  3. Andjelic Zoran, Serbia: “IF WE have enough 3D printers, we could make custom made prosthetic limbs for all victims of landmines and renew their faith in science”

Yet in the process of selecting the dreams, we found that others were also pretty cool so we came up with this short video illustrating 10 of them:

YouTube Preview Image

Thank you to Ozgur (Turkey), Hemanth (India), Christopher (France), Cristian (Cameroon), Josh (United States), Andjelic (Serbia), Marinescu (Romania), Noam (Israel), Swapnil (India), Goeffrey (Canada)… and thanks again to all participants of the “IF WE Challenge” in 2012!

And expect a new edition of the Challenge in 2013! :D



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