Monday, July 19, 2021

3D Printing: The direction to go for the Indian Defense and Aerospace Industries

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Pujitha Suribhatla

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3D Printing: The direction to go for the Indian Defense and Aerospace Industries

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Global Views 360

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July 19, 2021

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Representative Image Indian Defense Industry

Representative Image Indian Defense Industry | Source: Schildpaddie via Unsplash

3D printing is the next big game-changer on the technological front, almost a revolution if you will. 3D printing, also known as additive manufacturing, is a process of creating three-dimensional objects by layering two-dimensional cross sections on top of one another. The two-dimensional cross sections are computer-designed and rendered, which makes it all the more advanced. From Aerospace to Defense and Medical to Automotive, products manufactured via 3D printing are spreading their reach in the markets quite swiftly. This article will take a look at how 3D printing is beneficial and how the technology can transform the Indian and Defense and Aerospace sectors once utilized to its full potential.

Additive manufacturing has the power to unlock a wide range of opportunities. It uses a 3D printer to create a layer-by-layer “addition” of material which is digitally constructed. Different types of materials which are currently being used for the same are metals, ceramics, special plastics, synthetic resins, and etc. 3D printing not only reduces the cost of production of various components but also gives the power to manufacture locally with design flexibility. The technology significantly speeds the process of designing; this is mainly because there is no requirement of tools. Traditional manufacturing usually takes months to either acquire necessary tools and further produce parts and components or import components from various places. However, once 3D printers are acquired, which they might be costly in themselves, they would ensure a smoother production process. Hence, due to the combination of localized manufacturing and no tools, tailor-made designs can be produced to match the necessities of various industries.  

https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/MakerBot_ThingOMatic_Bre_Pettis.jpg/220px-MakerBot_ThingOMatic_Bre_Pettis.jpg
Figure 2: A typical 3D printer. Source: Bre Pettis via Flickr

India is gradually growing with respect to its utilization of 3D printing technology. In 2014, the 3D printers market was at an early stage with just 200-500 combined workforce of engineers, designers and sales representatives. Currently, start-ups are springing up in places like Bangalore, Chennai, Mumbai, Visakhapatnam, etc and they are producing essential parts for sectors like the Indian Navy, Air Force, ISRO and the HAL.  India’s 3D printing market is projected to reach $79 million by the end of 2021, while the global market is at around $15.8 billion, which suggests that India has a lot of catching up to do.

Applications in the Aerospace and Defense Industry

The Aerospace and Defense Industries are keen to pursue additive manufacturing, mainly because of benefits such as weight reduction, cost cutting and to meet their highly specific requirements. The additive process uses less material to manufacture components and also ensures minimal waste of material. Overall reduced weightage means that less fuel would be used in aircrafts and hence result in better environmental compatibility. Let’s examine a few instances in India where 3D printing startups have assisted and provided the defense and aerospace sectors with unique solutions.

Recently, in 2020, the Centre-run defense company Hindustan Aeronautics Limited (HAL) had signed a MoU (Memorandum of Understanding) with Wipro 3D, the metal additive manufacturing branch of Wipro Infrastructure Engineering. The initiative would primarily focus on the design, development, testing, manufacturing, and repairing of aerospace components using metal additive technology. HAL is using 3D printing to manufacture engine components, although it also provides support to helicopter and rotary wing products. HAL also provides products to the Indian Army, Air Force, Navy, and Coast Guard. Speaking about this collaboration, Shekhar Shrivastava, CEO of the Bangalore division of HAL, said, “This initiative between HAL and Wipro 3D will create a unique synergy of capabilities that can accelerate the adoption of metal additive manufacturing in aerospace in India. Qualification of parts for aerospace is challenging as it would require prove out and extensive testing followed by certification by regulatory authorities which may also include flight testing."

Down south, Karnataka, which produces more than 65 percent of India’s aerospace-related components and exports, has taken a number of initiatives to promote additive manufacturing by setting up 3D printing clusters and sponsoring 3D printing startups. For example, through its flagship programme ‘Start Up Karnataka’, the State has given grants to ‘Deltasys E-Forming’, a Belgaum based start-up, to develop hybrid composite 3D printers. These initiatives are quite appropriate since two-thirds of India’s aircraft and helicopter manufacturing for the defense takes place in Karnataka, and 3D printing would revolutionize these processes quite rapidly.

On the other coast, Chennai-based 3D printing startup, Fabheads Automation, was established in 2015 by an ISRO engineer turned entrepreneur Dhinesh Kanagaraj. The deep tech startup designs and develops high-end carbon fibre helicopter blades for the Indian Air Force. Traditionally, carbon fibre parts are fabricated by laborious manual processes with a lot of fabrication time and money spent. Dhinesh also observed a lot of material wastage when he worked on carbon fibres at ISRO.  Based on this, Fabheads has designed an automated 3D printer series to eliminate material waste and also improve efficiency of production of carbon fibre. Sectors like the DRDO are currently approaching the company given these innovative methods of production.

3D Printing Saves the Day for the Indian Navy

Further, the Indian Navy has partnered with ‘think3D’, a Hyderabad-based 3D printing start-up, to produce spare components via additive manufacturing for both on and off-shore set-ups. The Indian Navy uses a lot of machinery on its ships which are imported from other countries and are quite old.  Whenever a component gets damaged, it is hard to replace it either because there is no availability of the part or because there is significant delay before a part is received. This often proved to be costly for the Navy since the machines would have to be kept idle before a spare part was replaced along with the fact that procurement of the parts was no less expensive.

This is where think3D had stepped in and supplied 3D printed parts to the Indian Navy, which were successfully tested and incorporated into its machinery. An example of such a 3D printed part, which proved to be of crucial help, is that of a centrifugal pump impeller- a key component for a ship’s operation.

https://3dprintingindustry.com/wp-content/uploads/2020/04/4.jpg
Figure 3: An original impeller (left) vs. a 3D printed impeller (right). Image source: think3D

The impeller is a rotating component and it is very important for a ship as it transfers energy from the motor to a fluid that needs to be pumped by accelerating the fluid outwards from the centre of rotation.  On ships, this component is used to import seawater into various parts of the ship for regular use of the crew. These impellers are required to rotate at high speeds for long durations and need to be very carefully designed. 3D printing was the best solution to replace these parts, given the speed of production and lower expenses.

Given all the benefits of 3D printing, it is high time for the Indian market to expand its 3D printing industry and utilize it to its full potential. There are many other instances like the one of the impeller in the Aerospace and Defense industries which can easily be solved using 3D printing.

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July 17, 2021 6:39 PM

How facebook helps the Authoritarian Regime in Vietnam

The ability of coercing American tech giants like Facebook into compliance is definitely a talking point to brag for the Vietnamese leaders. In October 2019, Facebook’s CEO Mark Zuckerberg stated that “Facebook stands for free expression. In a democracy, a private company shouldn’t have the power to censor politicians or the news.” However, Facebook’s double standard is no novelty. In August 2019, the Minister of Information and Communications, Nguyen Manh Hung took the parliamentary floor and stated that Facebook was restricting access to “increasing amounts” of content in Vietnam. Further, Hung stated that Facebook was complying with 70-75% of the Vietnamese government’s requests for post restrictions. In October 2020, this number went up to 95% for Facebook. Facebook acknowledged that the amount of content on which restrictions were imposed jumped by over 500% in the second half of 2018 alone.

Unlike China, Vietnam has adopted a relatively open attitude to western social media. Vietnamese politicians consider social media beneficial, perhaps it helps the promotion of their missions, personal agendas and even propagandas. In fact, Vietnam happens to have a military unit—called Force 47—with the purpose to correct “wrong views” on the internet. Whereas, there is no set set definition of the “wrong views,” people—if found guilty—can be jailed upto 20 years.

Furthermore, blocking western social media might not be in the self-interest of Vietnam, as doing so can hamper relations with the U.S.—with whom Vietnam desires to strengthen ties. The top communist strata of Vietnam for decades, have been single-minded on what they identify as “toxic information”. The definition of “toxic information” has only broadened over the years and has enabled the authorities to bend the term as per their whims. Vietnamese leaders have misused the threat of “toxic information” by branding content unfavorable to their regime with the term.

Facebook removed over 620 supposed fake accounts, over 2,200 links and several thousand posts which are deemed to be ‘anti-state’ from Vietnam in 2020. In a country without independent media, Vietnamese people are reliant on platforms like Facebook to read and discuss vital and controversial issues such as the dispute in Dong Tam. Dong tam is a village outside Vietnam’s capital, Hanoi, where residents were fighting the authorities’ plans to seize their farmlands in order to build a factory. 40-year-old Bui Van Thuan, a chemistry teacher and blogger, showed his solidarity to the fight and condemned the country’s leaders in one of his Facebook posts which stated “Your crimes will be engraved on my mind. I know you, the land robbers, will do everything, however cruel it is, to grab the people’s land.” On government’s insistence, Facebook blocked his account the very next day preventing over 60-million Vietnamese users from seeing his posts. A day later, Dong tam village was stormed by police with grenades and tear gas. A village leader and three officers were killed just as Thuan had anticipated. Thuan’s account remained suspended for three months after which Facebook informed him that the ban would be permanent. “We have confirmed that you are not eligible to use Facebook,” the message read in Vietnamese. Towards the end of murder trial held over the clash, a Facebook spokesperson said Thuan’s account was blocked due to an error and the timing of the lifting of restrictions was coincidental. The spokesperson denied censoring profiles as per the demands of the government. Thuan’s blacklisting illustrates how willingly Facebook submits to the authoritarian government’s censorship demands.

In April 2018, 16 activist groups and media organizations and 34 well-known Facebook users wrote an open letter to the CEO Mark Zuckerberg, accusing Facebook of assisting Vietnam to suppress dissenting voices. Force 47 or E47, a 10,000-member cyber unit was singled out in the letter. The letter called the unit “state-sponsored trolls” that spread misinformation about the Vietnamese pro-democracy activists.

Force 47 was deployed in 2016 by the state to maintain a “healthy” internet environment. The cyber unit took advantage of the very apparent loophole in Facebook’s community guidelines which automatically removes content if enough people lodge a complaint or report the post/account. The letter alleged that the government used Force 47 to target and suspend accounts or content.

According to a report by The Intercept, the modus operandi of E47 is that a member shares a target who is often a pro-democratic political dissident writer or activist. The information of the target who is nominated for censorship is accompanied with an image of the target with a red “X” marked over it. Anyone interested in victimizing the target needs to just report the account or post for violating Facebook’s pliant community standards regardless of whether the rules were actually broken. The E47 users are asked to rate the targeted page one out of five stars, falsely flag the post and report the page itself.  

Do Nguyen Mai Khoi, a singer and a pro-democracy activist, popularly known as “the Lady Gaga of Vietnam” has been tirelessly trying for over two years to get Facebook to care about the censorship in Vietnam. She has tried to get Facebook’s attention to the fact that groups like Force 47, a pro-government Facebook group of police, military, and other Communist party loyalists have actively been collaborating to suppress the voice of dissidents both offline and online. Her evidence has been substantial and her arguments carry ample clarity. Despite several interactions with Alex Warofka, a Facebook product policy manager for human rights, Mai khoi’s efforts have not been sincerely addressed. Instead, what they claimed was more infuriating. They said “We were not able to identify a sufficient level of community standards violations in order to remove that particular group (E47) or those particular actors.” Since E47 actors are under real names, photos and authentic identities, Facebook dismissed Mai Khoi’s evidence. “At a high level, we require both widespread coordination, as well as the use of inauthentic accounts and identity,” Warofka told Khoi.

Dipayan Ghosh, a former public policy advisor at Facebook and the co-director of the Digital Platforms & Democracy Project at Harvard’s Kennedy School stated:

“I think for Zuckerberg the calculus with Vietnam is clear: It’s to maintain service in a country that has a huge population and in which Facebook dominates the consumer internet market, or else a competitor may step in. The thought process for the company is not about maintaining service for free speech. It’s about maintaining service for the revenue.”

It wouldn’t be surprising to note that the inconsistency of Facebook’s ostensible community guidelines and policies extend beyond Vietnam. In 2016, during the time of political unrest in Turkey, access to Facebook and other social media were repeatedly restricted and further complied to the Turkish government’s request to restrict 1,823 pieces of content which the government deemed unlawful. In 2018, Facebook owned Instagram complied with demands of the Russian government to remove content related to opposition activist Alexei Navalny’s anti-corruption investigation therefore making it inaccessible for over 5 million users who watched and followed Navalny’s investigation. Facebook also routinely restricts posts that governments deem sensitive or off-limits in countries including Cuba, India, Israel, Morocco and Pakistan.

While the CEO of Facebook, Mark Zuckerberg, claims that the platform protects free expression, Facebook has been an active facilitator and flag-bearer of autocratic regimes. The social media giant’s apparent indifference and ignorance has failed its users terribly.

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