by78
General
I don't see any comments from Gongke101.
Chinese Engine Development
- Thread starter jackbh
- Start date
I don't see any comments from Gongke101.
Nein!!! The mods limited his posts' visibility to himself only.
I skimmed through that thread before it got censored, I'll collate the bits of info I could remember.
- WS-10 has at least six variants
- WS-10 original
- WS-10B for J-10 series
- WS-10D for J-16 and Flanker series - closely related to WS-10B
- WS-10H with H standing for 海 or sea
- WS-10IPE - 14t thrust variant
- WS-10J with J standing for 舰载 or shipboard, AKA carrier aircraft engines
- Both the manufacturer and customer lost enthusiasm for the WS-10B so while it exists and is undergoing certification, there's no impetus to adopt it on J-10s
- Gongke101 believes it's because the number of J-10s equipped with AL-31s have already formed a critical mass and a switch to WS-10s would encounter significant systemic inertia
- WS-10H was the former name of the WS-10J but is now the name of the variant used on PLANAF J-11Bs
- WS-10J is the variant designed for J-15s; he mentioned something about the outlook of this variant but I forgot what he said
- When asked about the announcement about the WS-15 achieving design certification in 3 to 5 years, Gongke101 said it was very possible because he hasn't heard any bad news about the WS-15 lately
by78
General
According to this press release from the Chinese Academy of Sciences, a new process for fabricating complex turbine blade cooling holes has achieved a milestone. If I'm reading this correctly, a new laser five-axis drilling machine and its associated control software passed expert assessment.
Google translation is pretty OK:
On July 19th, the Technical and Acceptance Meeting of the Aerospace Engine Turbine Blade Complex Shaped Hole Processing System was undertaken by the Laser and Intelligent Energy Field Manufacturing Engineering Team of the Advanced Manufacturing Institute of the Institute of Materials Technology and Engineering of the Chinese Academy of Sciences. Held at Ningbo Materials. Experts from the Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences, Shanghai Institute of Ceramics of the Chinese Academy of Sciences and Ningbo Haitian Seiko and more than 10 researchers participated in the on-site technical test.
The expert group listened to the project work report of the project leader Zhang Wenwu, reviewed the technical test outline on site, and tested the technical acceptance indicators one by one according to the test outline. On-site five-axis linkage coordinate transformation, autofocus and compensation, normal automatic detection and Deflection control, multi-station shaped hole CAD drive intelligent processing and other functional demonstrations, and on-site drilling of flat parts and blade specimens, fully inspect the equipment's athletic ability, process capability and intelligent level of the kernel control system. According to the index requirements and the measured results in the implementation plan, the expert group believes that the technical indicators of the “Aerospace Engine Turbine Blade Complex Shaped Hole Laser Processing System” have reached or exceeded the implementation plan, and successfully completed the development task, which is of great significance. Pass the technical acceptance.
Aeroengines are of great significance to national security and national economy. One of the performance indicators of aero-engines is the pre-turbine operating temperature. The improvement depends on the overall progress of high-temperature materials, thermal barrier coatings and film cooling technology, among which advanced film cooling technology The contribution of temperature increase is about 2/3. In the mid-1980s, the United States took the lead in using complex shaped pore film cooling technology, and the equivalent cooling efficiency of hot-end components such as turbine blades increased from 0.3 to over 0.5, and continues to progress. In China, due to the vacancy of the autonomous processing machine and the backwardness of the processing technology, the long-term failure to break through the complex shaped hole processing technology, the advanced cooling structure design can not be verified, the blade cooling efficiency has so far been different from the Western countries. The lag in cooling technology can indirectly lead to backward engine reliability and overall performance. Therefore, China urgently needs to break through the independent industrial machine tool and related process technology of complex shaped hole processing.
The shape of the aero-engine blade is distorted and the internal cavity is complex. It is necessary to use laser to machine high-precision and complex shaped holes on the blade. There are five-axis coordinate linkage conversion, autofocus and compensation, normal automatic detection and inclination control, CAD-driven multi-station automation. Many technical difficulties such as processing.
In response to the above challenges, the laser and intelligent energy field manufacturing engineering team has been working on the “simulation-design-equipment-process” innovation chain of complex shaped hole technology in the country after more than six years of continuous research, and has been supported by the Chinese Academy of Sciences equipment project. Developed a "complex shaped hole machining system for aero-engine turbine blades" and a complete set of processing technology. After the expert group's appraisal, the relevant technical indicators have reached or exceeded the implementation plan. The project has been greatly assisted by Ningbo Daai Laser Technology Co., Ltd., relying on the company, this technology has entered the stage of industrialization.
"Aerospace engine turbine blade complex shaped hole laser processing system" provides domestically produced mother machine and complete set of process methods for complex and special low-damage processing of aero-engine and gas turbine turbine blades, combustion chambers, flame tubes and other hot end parts, and can be extended and applied. Micro-machining of three-dimensional curved surfaces enables precise three-dimensional processing of many difficult-to-machine materials such as diamond, quartz, ceramics, metals, composite materials, and resins. The breakthrough of this complete set of technologies is of great significance to promote the technological advancement of China's aero-engine and gas turbine hot end components and the breakthrough of micro-machining capabilities.
Google translation is pretty OK:
On July 19th, the Technical and Acceptance Meeting of the Aerospace Engine Turbine Blade Complex Shaped Hole Processing System was undertaken by the Laser and Intelligent Energy Field Manufacturing Engineering Team of the Advanced Manufacturing Institute of the Institute of Materials Technology and Engineering of the Chinese Academy of Sciences. Held at Ningbo Materials. Experts from the Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences, Shanghai Institute of Ceramics of the Chinese Academy of Sciences and Ningbo Haitian Seiko and more than 10 researchers participated in the on-site technical test.
The expert group listened to the project work report of the project leader Zhang Wenwu, reviewed the technical test outline on site, and tested the technical acceptance indicators one by one according to the test outline. On-site five-axis linkage coordinate transformation, autofocus and compensation, normal automatic detection and Deflection control, multi-station shaped hole CAD drive intelligent processing and other functional demonstrations, and on-site drilling of flat parts and blade specimens, fully inspect the equipment's athletic ability, process capability and intelligent level of the kernel control system. According to the index requirements and the measured results in the implementation plan, the expert group believes that the technical indicators of the “Aerospace Engine Turbine Blade Complex Shaped Hole Laser Processing System” have reached or exceeded the implementation plan, and successfully completed the development task, which is of great significance. Pass the technical acceptance.
Aeroengines are of great significance to national security and national economy. One of the performance indicators of aero-engines is the pre-turbine operating temperature. The improvement depends on the overall progress of high-temperature materials, thermal barrier coatings and film cooling technology, among which advanced film cooling technology The contribution of temperature increase is about 2/3. In the mid-1980s, the United States took the lead in using complex shaped pore film cooling technology, and the equivalent cooling efficiency of hot-end components such as turbine blades increased from 0.3 to over 0.5, and continues to progress. In China, due to the vacancy of the autonomous processing machine and the backwardness of the processing technology, the long-term failure to break through the complex shaped hole processing technology, the advanced cooling structure design can not be verified, the blade cooling efficiency has so far been different from the Western countries. The lag in cooling technology can indirectly lead to backward engine reliability and overall performance. Therefore, China urgently needs to break through the independent industrial machine tool and related process technology of complex shaped hole processing.
The shape of the aero-engine blade is distorted and the internal cavity is complex. It is necessary to use laser to machine high-precision and complex shaped holes on the blade. There are five-axis coordinate linkage conversion, autofocus and compensation, normal automatic detection and inclination control, CAD-driven multi-station automation. Many technical difficulties such as processing.
In response to the above challenges, the laser and intelligent energy field manufacturing engineering team has been working on the “simulation-design-equipment-process” innovation chain of complex shaped hole technology in the country after more than six years of continuous research, and has been supported by the Chinese Academy of Sciences equipment project. Developed a "complex shaped hole machining system for aero-engine turbine blades" and a complete set of processing technology. After the expert group's appraisal, the relevant technical indicators have reached or exceeded the implementation plan. The project has been greatly assisted by Ningbo Daai Laser Technology Co., Ltd., relying on the company, this technology has entered the stage of industrialization.
"Aerospace engine turbine blade complex shaped hole laser processing system" provides domestically produced mother machine and complete set of process methods for complex and special low-damage processing of aero-engine and gas turbine turbine blades, combustion chambers, flame tubes and other hot end parts, and can be extended and applied. Micro-machining of three-dimensional curved surfaces enables precise three-dimensional processing of many difficult-to-machine materials such as diamond, quartz, ceramics, metals, composite materials, and resins. The breakthrough of this complete set of technologies is of great significance to promote the technological advancement of China's aero-engine and gas turbine hot end components and the breakthrough of micro-machining capabilities.
SinoSoldier
Colonel
Not exactly a strong line of argument from him, is it? "No news" could mean anything.
Hendrik_2000
Lieutenant General
Have you ever heard the expression "new news is good news"?
SinoSoldier
Colonel
How are you confident that this mantra holds true in this case?
How are you sure it doesn’t? No one knows. Let’s all stop making presumptions. Rejecting or accepting predictions based on nothing but our biases isn’t productive.
SinoSoldier
Colonel
Exactly, so "Gongke101" had no business claiming that no news = good news. We'll have to wait and see.
We all know it is not that meaningful to make judgement on a few words. But I think you actually mistaken the words from Gongke101. His original words in post #4772 was
While you thought he said "no news".
"No news" means nothing positive, nor negative, 50/50 chance of both directions.
"No bad news" means either there is no news at all, or the news is all good, as far as he knew. This is way much more positive than what you interpreted.
Pretty much like the English phrase "not bad" is a refrained complement.
SinoSoldier
Colonel
If he has been receiving good news all along, then this definitely might hint that the WS-15 project is going well. However, it is still better to hold our horses since there has been conflicting reports as well.
Personally I would not be surprised if the WS-15 won't make it into service in mid-late 2020s. 2024-2025 seems to be the frequently-quoted IOC date. Of course, I would be pleasantly surprised if it's earlier.