Signs condemning police brutality - Tensions rise in Hong Kong after the government banned protest | Source: Joseph Chan via Unsplash
Hong Kong is a special administrative region of the People’s Republic of China located on the Eastern Pearl River Delta of the South China Sea. From 1842 to 1997, the region was under the control of the Britishers.
In 1997 the sovereignty of Hong Kong was transferred to China with the principle of “one country, two systems” which provided some degree of autonomy for Hong Kong. This system was supposed to be in force for a period of minimum fifty years from 1997 to 2047. However, under President Xi Jinping, China has been aggressively making such rules and regulations which increase the influence of mainland China on administration of Hong Kong.
In June 2020, China started implementing a new national security law for which potentially severely limits the independence of the judiciary of Hong Kong. Under the proposed law, Hong Kong’s Chief Executive, who is answerable to Beijing, gets the power to appoint judges for specific security cases. It also calls for setting up a security agency in Hong Kong to resolve existing conflicts and challenges faced by Beijing with respect to Hong Kong.
China defended the law by citing that it would prevent and punish secession, subversion as well as foreign infiltration. Beijing has argued that these three factors are responsible for fuelling unrest in the city since last year. Critics however have very different opinions regarding the law. For them this law directly attacks the relative autonomy granted to Hong Kong after Britain handed it back to China in 1997.
The law can potentially be employed totarget anti-government protests and other forms of dissent in the region of Hong Kong. It has instilled fear in the minds of the Hong Kong residents that the Chinese Communist Party is trying to curb the freedom of speech and protest in the region in an effort to bring Hong Kong under its authoritarian rule.
Many protesters are of the belief that the local governments of Hong Kong are no longer autonomous and act on the whims of Beijing. They accuse the city's top leader, Chief Executive Carrie Lam, who is appointed by Beijing, of acting only in the interest of mainland China while ignoring to safeguard the autonomy of Hong Kong.
The protests Hong Kong witnessed in May 2020, were quite similar to the ones the city witnessed almost a year ago when China proposed an extradition law for Hong Kong. The law was eventually scrapped after a flurry of protests. However the protest against the territory’s existing leadership turned into a protest against Chinese ruling party’s efforts to merge Hong Kong with mainland China.
At its core, the protest movement is aimed at protecting Hong Kong’s autonomy and resisting encroachment from the mainland. However, China’s adamant approach in bringing Hong Kong under the mainland amidst a falling economy and rising agitation and police brutality has had a negative impact on the residents.
Many Hong Kong protesters have started moving to countries who are willing to adopt them over fears of being under scrutiny from the Chinese government. Many of the skilled workers are now looking at ways to exit the city and move to better alternatives. More than half of the people from the age group of 18 to 24 are considering options outside of Hong Kong owing to the uncertainty surrounding the region’s fate.
Despite the protest by citizens and condemnation and actions by the US, Britain and other Western countries, it seems unlikely that China is going to halt its efforts to dismantle the autonomy of Hong Kong and effectively merge it with the mainland China.
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3D Printing: The direction to go for the Indian Defense and Aerospace Industries
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.
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.
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.
