With 3D-printed rocket engine, Isro adds another feather to cap

3D打印火箭引擎，ISRO又一成就

BENGALURU: Isro has added another feather to its cap with the successful hot testing of a liquid rocket engine manufactured using additive manufacturing - or 3D printing - technology on May 9, the space agency said Friday.

班加罗尔：印度空间研究组织（ISRO）5月9日表示，利用增材制造或3D打印技术制造的液体火箭发动机的热测试成功，给该组织又添了一项新成就。

The engine, designated for use in the PS4, is used in the upper stage of Isro's workhorse rocket, the Polar Satellite Launch Vehicle.

该发动机指定用于PS4，用于印度空间研究组织的主力火箭极地卫星运载火箭的上级。

Isro redesigned the conventionally manufactured PS4 engine to make it compatible with additive manufacturing techniques. It said this innovative approach, known as Design for Additive Manufacturing, has yielded remarkable advantages.

Isro重新设计了传统制造的PS4发动机，使其与增材制造技术兼容。该组织表示，这种被称为“增材制造设计”的创新方法已经产生了显著的优势。

"The Laser Powder Bed Fusion technique employed in the manufacturing process reduced the number of engine components from 14 to a single piece, eliminating 19 weld joints. This streamlined design not only significantly reduced raw material usage per engine from 565kg to a mere 13.7kg of metal powder but also cut overall production time by 60%," Isro said.

ISRO表示：“在制造过程中使用的激光粉末床融合技术将发动机部件的数量从14个减少到一个，消除了19个焊缝。这种流线型设计不仅大大减少了每台发动机的原材料使用量，从565公斤减少到仅13.7公斤的金属粉末，而且还将整体生产时间缩短了60%。”

The PS4 engine, which uses a bipropellant combination of nitrogen tetroxde as the oxdizer and monomethyl hydrazine as the fuel, was developed by Isro's Liquid Propulsion Systems Centre. The manufacturing of the additively manufactured engine was carried out by the Indian industry partner, Wipro 3D, while the hot testing was conducted at Isro's Propulsion Complex in Mahendragiri.

PS4发动机是由Isro液体推进系统中心开发的，使用四氧化二氮作为氧化剂和一甲基肼作为燃料的双推进剂组合。增材制造发动机由印度工业伙伴Wipro 3D制造，而热测试则在印度空间研究组织位于马亨德拉吉里的推进中心进行。

印度时报读者的评论：

Ashok Kumar

China US see technological advances by India as future threats to them and they have hired indian opposition party leaders to any how defeat the nationalistic and uncorruptable BJP Modi so that all the researches are put in cold storage as earlier.

中国和美国将印度的技术进步视为未来对他们的威胁，他们雇佣了印度反对党领导人，以击败民族主义、廉洁的人民党领袖莫迪，这样所有的研究都会像以前一样被冷藏起来。

Donald Moss

Can't say I understand how you can 3D print a rocket engine !!!....but WOW we have some seriously smart people in Bharat !

虽然不明白3D打印火箭发动机是怎么做到的，但是觉得太牛了，好在我们印度有一些非常聪明的人!

Bala Srinivasan

Simply phenominal if not awesome ISRO is leapfrogging away in its growth&advancing of Rocket design&production.

印度空间研究组织(ISRO)在火箭设计和生产方面的发展和进步是跨越式的。

Guest

The main cause of the all round development of the nation is, mechanism of Modiji's dynamic policy.

国家能全面发展，主要是因为莫迪的动态政策机制。

User Shial

Another feather in ISRO’s cap..keep it up

印度空间研究组织的又一成就，继续保持

Arijit

fantastic, if 3d printed engine is possible, then semi cryogenic and more powerful NGLV engines could be manufactured at 50% lower cost and 60% lower time, I hope ISRO engineers take this forward quickly because china is landing on moon for 2nd time

太棒了，如果3d打印引擎成为可能，那么半低温和更强大的NGLV引擎就可以以低50%的成本和缩短60%的时间制造出来。我希望印度空间研究组织的工程师们能迅速取得进展，因为中国正在二次登月

Devendraksood

GREAT. 3D PRINTING is the wave of the future.

太好了，3D打印是未来的潮流。

0 0 • Reply • Flag

Raga and keju Want prove of it, they couldn't digest Nation's Great achievement....

拉胡尔和凯杰里瓦尔想要证据，他们无法接受国家的伟大成就....

Sunil

If Modi didn't invent "Cloud Radar theory", I dont think ISRO would have achieved anything great.

如果莫迪没有发明“云雷达理论”，我认为ISRO无法取得任何伟大的成就。

Sunil

Is it ISRO invented 3D printing? Bravo

是ISRO发明了3D打印吗？太棒了

1 0 • Reply • Flag

Absolutely incredible! It is a great feat. Congratulations to ISRO. We are proud.

难以置信，这是一个伟大的成就。祝贺ISRO，我们很自豪。

0 0 • Reply • Flag

Congratulations ISRO in cultivating this cutting edge technology.

祝贺ISRO研发了这项尖端技术。

1 0 • Reply • Flag

Our scientists are much capable & intelligent then others, great job

我们的科学家比其同行更有能力和智慧，干得好

4 0 • Reply • Flag

Looking at the pic, I thought it was a flowe vaze.

咋一看这张照片，我以为是花瓶。

0 2 • Reply • Flag

wonderful..hats off to the scientists and engineers.. proud of ISRO

太棒了，向科学家和工程师致敬。为ISRO感到骄傲

0 0 • Reply • Flag

Now the west will fume but can’t say “it’s not a rocket science”

西方虽然会生气，但不能说“这不是火箭科学”。

0 1 • Reply • Flag

Great achievement! Congratulations!

伟大的成就！祝贺！

4 0 • Reply • Flag

A heartfelt congratulations to ISRO

衷心祝贺ISRO

5 0 • Reply • Flag

India is progressing under the able leadership of Modi ji.

在莫迪干练的领导下，印度正在进步。

3 0 • Reply • Flag

super show by ISRO. Hats off to them and their technology partner.

ISRO的超级秀。向他们和他们的技术合作伙伴致敬。

4 0 • Reply • Flag

Congratulations ISRO & Bharat for this remarkable achievement ,#JaiMaaBharati

祝贺印度空间研究组织和印度政府取得这一了不起的成就

3 0 • Reply • Flag

Great work ISRO!!!! Proud moment for our nation

干得好ISRO！这是我们国家的骄傲！

D_Kmar • 4 hours ago

Look at the way Isro and DRDO are taking india forward in technology.

看看Isro和DRDO是如何带领印度在技术方面前进的。

9 1 • Reply • Flag

Amazing! Congrats ISRO!!,Where are those who say we are behind NASA and cant invent anything but copy. Take this from ISRO!!

太神奇了!恭喜ISRO ！那些说我们落后于NASA，除了抄袭什么都不能发明的人在哪里？向ISRO学学吧！