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New Indian Express
7 days ago
- Science
- New Indian Express
Crucial test: Samudrayaan inches closer to mission
BENGALURU: India's ambitious first-manned ocean mission Samudrayaan is inching closer to reality, with ISRO on Wednesday announcing that the testing of the personnel sphere of the Matsya-6000 submersible, along with the development of materials for realisation, were successfully carried out at the Vikram Sarabhai Space Centre (VSSC). 'The first welding on the actual hardware and detailed evaluation has been completed. High-penetration welding of this scale, ie. of 80-mm weld thickness, over 7,100-mm length with 32 minutes of weld duration, was carried out for the first time in the country,' ISRO said. Matsya-6000 is a sphere comprising a diameter of 2,260-mm, made of Titanium, and is expected to withstand external pressure of up to 600bar under low temp situations of -3 degrees C. It is capable of carrying a three-member crew, up to 6 km deep into the ocean. The National Institute of Ocean Technology (NIOT) signed an MoU with VSSC for the development of the special human-occupied spherical vessel, as a part of Samudrayaan, under the Deep Ocean Mission. The scientists also said a major challenge in realising the spherical vessel was the development of reliable, high-penetration Electron Beam Welding process and the high-energy (7.5MeV) X-ray facility for the Non-Destructive Evaluation. This is essential for the certification of the human-rated product, the ISRO team said. The Liquid Propulsion Systems Centre (LPSC) in Bengaluru developed the process and infrastructure for the welding process and NDE. ISRO said the LPSC has the facility and expertise to carry out welding up to 20-mm thickness. To meet the high-power demand, the EBW machine was augmented from 15kW to 40kW rating, along with additional facilities for chemical cleaning and handling equipment for the higher size and mass. For the NDE, the existing X-ray facility in kV range was augmented to 7.5MeV range. Multiple NDE techniques were employed, which complement each other in ascertaining weld quality, including Time of Flight Diffraction and Dual Linear Array Phased Array Ultrasonic Testing, the team concluded.
Time of India
23-07-2025
- Science
- Time of India
India develops personnel sphere, completes welding on submersible after 700 trials
MATSYA-6000 NEW DELHI: In a landmark achievement for India's Deep Ocean Mission, Isro has successfully developed the personnel sphere for the submersible vessel MATSYA-6000, designed to carry humans up to 6,000 metres (6km) below the ocean surface, by completing a critical welding process after 700 weld trials. 'Samudrayaan', a project under the Deep Ocean Mission of the ministry of earth sciences (MoES), aims to strengthen India's capabilities in deep-sea exploration. The National Institute of Ocean Technology (NIOT), under MoES, collaborated with Isro's Vikram Sarabhai Space Centre (VSSC) to design and fabricate the spherical crew compartment. The Deep Ocean mission will allow scientists to explore unexplored deep-sea areas, assess mineral resources like nickel, cobalt and rare earth elements, and study marine biodiversity. The mission is expected to be realised by 2026. Central to the Samudrayaan effort is the creation of a human occupied vehicle (HOV) that can withstand extreme pressure and temperature conditions on the seafloor. 'At the heart of the HOV is a titanium personnel sphere, a 2,260mm diameter enclosure with 80mm thick walls, made from a high-strength alloy. Designed by VSSC, the sphere is built to endure pressure up to 600 bar and temperatures as low as -3°C,' Isro said Wednesday. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like Dolly Parton, 79, Removes Her Makeup and Stuns Everyone The Noodle Box Undo One of the biggest challenges scientists faced in creating this weld lay in the properties of titanium as a metal. While titanium is known for its strength, it can be difficult to weld. The technical challenge was developing a reliable electron beam welding process capable of fusing thick (80-102 mm) titanium plates. Isro's Liquid Propulsion Systems Centre (LPSC), Bengaluru, took charge of augmenting its welding facility from a 15kW to a 40kW EBW capacity. LPSC developed the process and infrastructure for the welding process and non-destructive evaluation (NDE). While LPSC had the expertise to carry out welding up to 20mm thickness, it augmented the EBW machine from a 15kW rating to 40kW, while also making alterations to the chemical cleaning and handling equipment to accommodate the increased size and mass. Over 700 weld trials were conducted to optimise the process parameters, ensuring high quality and structural integrity. For quality assurance, Isro enhanced its X-ray radiography capability, one of the highest energy levels used in India, allowing detailed non-destructive evaluation (NDE) of the welded joints. The breakthrough came with the successful completion of the first high-penetration weld on the actual sphere hardware. This involved 80mm thick welds over a 7,100mm length, achieved in a continuous 32-minute operation, 'a national first in scale and precision' as per Isro. The milestone marks a significant leap for India's underwater exploration ambitions and brings Matsya-6000 closer to sea trials. Once complete, the vehicle will be among the very few human submersibles in the world capable of reaching such depths, opening new frontiers for deep sea science, resource exploration and technology development.
Time of India
23-07-2025
- Science
- Time of India
ISRO signs MoU with NIOT for submersible spherical vessel MATSYA-6000
ISRO 's Vikram Sarabhai Space Centre (VSSC) has signed a Memorandum of Understanding with the National Institute of Ocean Technology ( NIOT ) to develop a submersible spherical vessel , MATSYA-6000 , which can carry humans into the sea up to a depth of 6km. The human-occupied vehicle (HOV) is part of 'Samudrayaan', a project under the Deep Ocean Mission of the Ministry of Earth Sciences (MoES), according to ISRO. In a release issued by the space agency on Wednesday, the design of the HOV along with development of the material for realisation was carried out by VSSC. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like We Can't Believe She Wore That To The Red Carpet Golfhooked Read More Undo The sphere measuring 2,260mm diameter with a wall thickness of 80mm, is made out of Titanium alloy and is expected to withstand an external pressure up to 600bar under low temperature conditions of -3°C. It has the capability to carry a three-member crew into the deep ocean, the release added.
Deccan Herald
23-07-2025
- Science
- Deccan Herald
ISRO signs MoU with NIOT for submersible spherical vessel MATSYA-6000
Bengaluru: ISRO's Vikram Sarabhai Space Centre (VSSC) has signed a Memorandum of Understanding with the National Institute of Ocean Technology (NIOT) to develop a submersible spherical vessel, MATSYA-6000, which can carry humans into the sea up to a depth of human-occupied vehicle (HOV) is part of 'Samudrayaan', a project under the Deep Ocean Mission of the Ministry of Earth Sciences (MoES), according to to launch NISAR mission on July 30 .In a release issued by the space agency on Wednesday, the design of the HOV along with development of the material for realisation was carried out by sphere measuring 2,260mm diameter with a wall thickness of 80mm, is made out of Titanium alloy and is expected to withstand an external pressure up to 600bar under low temperature conditions of -3° has the capability to carry a three-member crew into the deep ocean, the release added.
News18
23-07-2025
- Science
- News18
ISRO signs MoU with NIOT for submersible spherical vessel MATSYA-6000
Agency: PTI Bengaluru, Jul 23 (PTI) ISRO's Vikram Sarabhai Space Centre (VSSC) has signed a Memorandum of Understanding with the National Institute of Ocean Technology (NIOT) to develop a submersible spherical vessel, MATSYA-6000, which can carry humans into the sea up to a depth of 6km. The human-occupied vehicle (HOV) is part of 'Samudrayaan', a project under the Deep Ocean Mission of the Ministry of Earth Sciences (MoES), according to ISRO. In a release issued by the space agency on Wednesday, the design of the HOV along with development of the material for realisation was carried out by VSSC. The sphere measuring 2,260mm diameter with a wall thickness of 80mm, is made out of Titanium alloy and is expected to withstand an external pressure up to 600bar under low temperature conditions of -3°C. It has the capability to carry a three-member crew into the deep ocean, the release added. PTI JR ROH Disclaimer: Comments reflect users' views, not News18's. Please keep discussions respectful and constructive. Abusive, defamatory, or illegal comments will be removed. News18 may disable any comment at its discretion. By posting, you agree to our Terms of Use and Privacy Policy.
