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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February 7, 2021 5:58 PM

Jordan Peterson and Bill C-16: What does each side argue?

Jordan Peterson, a clinical psychologist by profession, shot to fame in 2016 when he began protesting against the Bill C-16. He released his own video lecture series on the subject as well—which garnered millions of views. Some people support him, while others oppose him, but who is Jordan Peterson and what are his ideas? And what is it about Bill C-16 which divided the public opinion about Peterson?

These are the questions which this article will uncover.

Who is Jordan Peterson? And what are his ideas?

Jordan Peterson is a Canadian clinical Psychologist by profession and was a professor of psychology at the University of Toronto. He rose to intellectual stardom after taking a stand against “politically correct culture” and Bill C-16. He started protesting against the excesses of the cultural left. He has written several books including 12 Rules For Life, Maps of Meaning, Political Correctness, etc. While most of them are Self-help books, some are also on the idea of political correctness and its criticism, and where the left has gone wrong. He released his video lectures online on YouTube which have gathered massive views and followings, and gave him the celebrity status. Peterson’s videos on C-16 and political correctness racked up more than 400,000 views on YouTube within about a month of posting.

Although several newspapers such as The New York Times and The Wall Street Journal have described him as “conservative” and “conservative-leaning”, Peterson calls himself a “Classic British Liberal” and a “traditionalist”. He has said that he’s commonly mistaken to be a “right winger”, which he denies.

The University of Toronto said it had received complaints of threats against trans people on campus. There are complaints from students and faculties that Peterson’s comments are “unacceptable emotionally disturbing and painful” and have urged him to stop doing it.

On the other hand, Dr Peterson is concerned proposed federal human rights legislation "will elevate into hate speech" his refusal to use alternative pronouns. He argues that terms like "gender identity' and "gender expression" are too broad, and will be used by “radical social constructionists” to bully their opponents into submission. "One is silent slavery with all the repression and resentment that that will generate, and the other is outright conflict. Free speech is not just another value. It's the foundation of Western civilization," he told the BBC.

Many feckless young men have started following him—often using his ideas against the transgender community. Fans of Peterson and his ideologies saw the video as proof of his genius and bravery; Peterson was the avatar of reason and facts pushing back against irrational “social justice warriors” (SJWs). There were rallies both for and against Peterson in Toronto, and he made the rounds on Canadian television.

What is Bill C-16?

The law is an amendment to the Canadian Human Rights Act by adding "gender identity or expression" as a prohibited ground of discrimination. That makes it illegal to deny services, employment, accommodation and similar benefits to individuals based on their gender identity or gender expression. A person who denies benefits because of the gender identity or gender expression of another person could be liable to provide monetary compensation.

Similarly, the law also amends the Criminal Code by adding "gender identity or expression" to the definition of "identifiable group" in section 318 of the Code. If there’s evidence that an offence is motivated by bias, prejudice or hate, it can be taken into account by the courts during sentencing.

It would also extend hate speech laws to include these two terms “gender identity” and “gender expression” and make it a hate crime to target someone for being transgender, publicly inciting hatred or advocating genocide.

Peterson and Bill C-16: Arguments from both the sides

Apparently, not everyone is convinced that Peterson is a thinker of substance. Last November, fellow University of Toronto professor Ira Wells called him “the professor of piffle”—a YouTube star rather than a credible intellectual. Tabatha Southey, a columnist for the Canadian magazine Macleans, designated him “the stupid man’s smart person”.

Dr Peterson's University of Toronto colleague, Dr Lee Airton, argues he is being alarmist and indulging in "slippery slope fallacies" on the limits of free speech.

"If you actually listen and you parse out the arguments, it becomes very clear that this not about freedom of speech, that this is about reducing transgendered people's needs as excessive and illegitimate," he told the BBC.

The bill was passed in the Senate. Before it was passed, there were a lot of debates and deliberations on the bill and what kind of effects it may have.

Senator Grant Mitchel | Source: Canada Senate Website

“This bill is not only about the protections it provides, but also the message that the Parliament is delivering to all Canadians about the need to treat everybody equally,” Independent Alberta Senator Grant Mitchell, who is also a longtime advocate for trans rights, said after the bill’s passage.

Few conservative senators voted against the legislation. Conservative Manitoba Senator Don Plett has called it a threat to free speech. He alleged that he feared the bill would force him to use gender neutral pronouns when addressing trans people. There is also a largely refuted myth among conservatives that this law will allow “men to pose as women to attack them in the bathroom”. Conservative Ontario Senator Lynn Beyak said, “As a woman, why would I support Bill C-16 when feminists have fought for so many years to protect women from the violence perpetrated against them by men. This will allow men to go into women’s change rooms and bathrooms across the country.”

This bill has been intensely debated, and as the trans community is happy that the bill would provide their vulnerable community, the feminists fear it could bring threat to spaces reserved for what they refer to as “female-born women”.

Critics have also voiced concerns that the law will penalize citizens who do not use specific pronouns when referring to gender diverse people.

Brenda Cossman from University of Toronto | Source: CBC.CA

Brenda Cossman, law professor at the University of Toronto and director of the Mark S. Bonham Centre for Sexual Diversity Studies, told CBC, “The misuse of gender pronouns, without more, cannot rise to the level of a crime,” she says. “It cannot rise to the level of advocating genocide, inciting hatred, hate speech or hate crimes … (it) simply cannot meet the threshold. Would it cover the accidental misuse of a pronoun? I would say it’s very unlikely. Would it cover a situation where an individual repeatedly, consistently refuses to use a person’s chosen pronoun? It might.”

The Canadian Human Rights Act does not mention pronouns either. The act protects certain groups from discrimination.

But now the question was, if a person disagrees to use the pronouns for a person repeatedly on purpose, will it land that person in jail? To this, Jared Brown, commercial litigator at Brown Litigation, who often works with corporate clients on employment law and human rights disputes, told CBC, “It is possible, through a process that would start with a complaint and progress to a proceeding before a human rights tribunal. If the tribunal rules that harassment or discrimination took place, there would typically be an order for monetary and non-monetary remedies. A non-monetary remedy may include sensitivity training, issuing an apology, or even a publication ban. If the person refused to comply with the tribunal's order, this would result in a contempt proceeding being sent to the Divisional or Federal Court. The court could then potentially send a person to jail “until they purge the contempt,”” he said.

Furthermore, he said that the path to prison does exist—but only in extreme cases—and it’s not that easy to get there, he mentions “The path to prison is not straightforward. It’s not easy. But, it’s there. It’s been used before in breach of tribunal orders.”

Conclusion

A law to protect transgender rights and allowing them to identify the way they are comfortable is indeed a progressive step for Canada. Although the laws do not impose any threat on the citizen’s safety or freedom of speech, some parts of it as argued by Mark S. Bonham is a little vague. Therefore, solutions to the problems should be addressed by the government of Canada.

However, what is also clear that Jordan Peterson’s action is just spreading misinformation and hysteria among people who are unaware of the law and are contributing towards a transphobic discourse.

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