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Monday, July 19, 2021

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

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Pujitha Suribhatla
Pujitha Suribhatla
South Asia

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Pujitha Suribhatla

Article Title

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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February 28, 2021 11:13 AM

Internet Shutdowns in India: From Kashmir to Haryana

India has one of the world’s largest internet user base and also has the maximum number of internet shutdowns. In 2018, India recorded 134 shutdowns which is the highest the country has seen yet. The article delineates the implications of Internet shut-down—while looking at specific cases of Kashmir, CAA-NRC, and Farm Bill Protests—and the legal procedures associated with the same.

The internet shutdown imposed in Kashmir on 4th August 2019, when Article 370 of the Constitution was abrogated by the Parliament of India recorded the longest shutdown in India.  In the initial days, landline and mobile services were restricted as well. While the ban on landline and mobiles was lifted soon, 2G services were restored for “verified users” on 25th January 2020. Only whitelisted websites could be accessed and social media remained prohibited. A new order was passed on 4th of March 2020, by the administration of J&K, according to which the whitelist was removed but internet could only be accessed using 2G on verified SIM's. As Kashmir is still languishing without high-speed internet, at least 7 million have been affected due to the shutdown.

Anti CAA-NRC Protests in Lucknow | Source: Youtube

In December, 2019, during the notable protests against the Citizenship Amendment Act, the authorities in the states of Assam, Meghalaya and Tripura severed internet connection as they supposedly cited a threat of violence and false rumors. Parts of West Bengal and Uttar Pradesh were also under a digital lockdown. Internet shutdowns come with a great cost. Every time the central or state government decides to cut the internet, a large number of students, businesses, travelers, online journalists and influencers are affected resulting in a huge monetary loss. According to a report by TopVPN, India has lost nearly $2.7 billion due to all the 83 internet shutdowns in 2020 alone. This loss is greater than the combined loss of the next 10 countries in the list. The report also revealed that India also stayed offline for longer than any other country, at 8,927 hours last year. The largest contributor to this figure is the 213-day shutdown in Kashmir.

The Kashmir Chamber of Commerce reported that the cumulative loss due to the internet shutdown and restriction in the region was $5.3 billion. The authorities say that these shutdowns are simply to stop the spread of dangerous misinformation which they believe moves faster in social media like Facebook and messaging apps like WhatsApp. However, the internet shutdowns are usually enforced after a piece of misinformation has been spread widely. In 2018, 33 of the shutdowns were justified by the government claiming that they wanted to curb dis/misinformation. The problem is that, when you cut people off from being able to access information, the only access they have is to previous misinformation. In fact, cutting off the internet can turn a previously predictable situation into a highly volatile one. A study conducted by Stanford suggested that mass mobilization in India can occur even in the absence of social media and digital platforms. Another report published by Stanford stated, “Rumours and disinformation continue to spread with or without access to digital communication networks, whose primary role is that of accelerators of information diffusion.” In addition to this, the study found that internet shutdowns force protesters to substitute non-violent tactics for violent ones which are less reliant on effective communication and coordination. In April 2019, Sri Lankan government shutdown all social media platforms as a result of the Easter Suicide Bombings. The IFCN (International Fact-Checking Network) reported that fake news was rampant despite the shutdown. IFCN also noticed an increase in false reports on Facebook from that area. However, the above mentioned facts did not have the potential to stop India from once again disregarding the negative implications of Internet shut-down. India continues to be indifferent.

Protesting farmers at Singhu Border | Source: Harvinder Chandigarh via Wikimedia

The ongoing farmers’ protest in India against the three farm bills (now acts) passed in the parliament turned violent on 26th of January. A group of the protesting farmers who were on a tractor rally, deviated from their route and entered the Red Fort. The Union Ministry of Home Affairs temporarily suspended internet in Singhu border, Ghazipur border, Tikri border, Mukarba Chowk and Nangloi for 24 hours. On 29th of January, the State government of Haryana ordered telecom operators to shut down all mobile internet services, all SMS services, and all dongle services in 17 of the 22 districts of the state until 5 pm on January 30, 2020.

The shutdown was based on the grounds of preventing protestors from mobilising through social media and to constrain the plague of disinformation, which was spread due to the tensions at farmer camps between unidentified miscreants, farmers and later the police. But there was a lack of media coverage of the police violence while they highlighted the protestors’ response to it, essentially disseminating biased disinformation which they ‘intended’ to curb with an internet shutdown.

The Indian Telegraph Act, 1885 permits the government to block internet access in case of a public emergency. After 2017, Temporary Suspension of Telecom Services (Public Emergency or Public Safety) Rules was deployed in cases of internet shutdowns. The Rule 2(1) describes the protocol and powers for the ‘competent authority’ to issue a direction for the suspension of Internet.  The ‘competent authority’ here refers to the Home Secretary of the Union government or the State government. If obtaining prior directions from either of these authorities is not feasible, the order may be issued by an officer, not below the rank of a Joint Secretary to the Government of India. This officer should be duly authorized by the competent authority to issue suspension order and must receive confirmation from the competent authority within 24 hours of issuing such order. In January 2020, the Supreme Court directed that in addition to the Telecom suspension rules, all internet shutdowns must be made public and the orders must be a committee must review all internet shutdown orders once every seven working days to ensure if it is in accordance with the Telecom suspension rules. In November 2020, a new rule was introduced stating that a single order cannot authorize a shutdown for a period exceeding 15 days. Despite several regulations, the Internet Freedom foundation found out that there is low compliance by state governments. Even in 2019, in multiple cities, including the national capital, the suspension orders were issued by the State Police. The New York times reported there were instances where local authorities of India ordered the shutdown with just a few phone calls to the local service providers.

In addition to repression of dissent, telecom shutdowns also have an impact on healthcare services, doctors and ambulances especially in the cases of violence when they certainly have a harder time communicating with people on the ground hence creating a vacuum of information.

Arbitrarily shutting down the internet is a fundamental right violation. The frequencies of internet shutdowns in India are highly alarming. Besides, it is ironic that in 2020, the government announced its plan to bring high-speed fibre-optic based broadband to all Indian villages in the next three years. While it is most certainly beneficial to those living in these villages and to those wanting to spread propaganda, all the effort would be insignificant if the nation continues to shut down the internet at this rate of recurrence.

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