Chapter 972: Production finalization and identification, and future plans
It must be admitted that Duflo''s guess is very close to the truth.
?In the process developed by Chang Haonan, it is indeed necessary to immerse the parts to be processed in a neutral salt solution.
In fact, for this step alone, if the workpiece can be washed with an electro-hydraulic beam coaxial with the laser instead of simply soaking it, like the former, the effect will be better.
It''s just that China is really lagging behind in terms of micro valve pumps, so in the end they used such a powerful method to achieve miracles.
However, the article Chang Haonan used to deceive his competitors was indeed too effective, and coupled with some fixed thinking, Duflo missed the most important part of the entire process—
Pulsed laser.
?Of course, that paper cannot be valid forever.
?Sooner or later, everyone will find that the thermal effect is a dead end.
??Moreover, as China gradually begins to apply ultra-short laser processing technology on a large scale, relevant news cannot always be suppressed.
But even if that day comes early, the impact will not be great.
Laser non-thermal processing is completely different in principle from the common thermal processing in the past.
Changing the continuous laser in the process to a pulse laser is not just a matter of changing the laser alone. It also involves the updating and development of a series of interaction models and numerical algorithms.
This work, with systematic assistance, took Chang Haonan on and off for more than a year to barely complete it.
Let alone others.
Furthermore, when everyone’s research reaches the final stage, Chang Haonan can rush to register several key patents before others.
Unless someone is unlucky and tries out the correct result directly from countless permutations and combinations of process parameters.
?Then Chang Haonan will start to consider whether a second person is also cheating...
…
?However, at this moment, Chang Haonan can''t pay attention to the trends of his friends and businessmen.
Because, a very important node for him is right in front of him.
“Mr. Chang, this is the situation explanation letter sent by the Services and Arms Equipment Bureau ten minutes ago.”
Zhang Liangping said as he put an envelope with a note on it in front of Chang Haonan.
Hearing this unit, the latter quickly looked away from the computer screen and took it apart as quickly as possible.
The Services and Arms Equipment Bureau is a second-level unit under the General Armament Department.
?Although the rank is not very high, he is responsible for the finalization and appraisal of naval, air, and second artillery equipment.
??If it is a non-key model, the second-level committee will be formed directly by them.
Even if it is a key piece of equipment that requires a first-level commission, a lot of manpower needs to be transferred from it.
In short, it is one of the most critical departments among Party A’s boss.
Therefore, although what was sent was an official letter rather than an instruction, it still had to be treated with emphasis.
Inside the envelope is a red-headed document.
[Our bureau has received feedback from various combat forces and flight research institutes on the turbofan 10 engine. A total of 36 prototypes and mass-produced aircraft of the two sub-types have accumulated installed operating hours of more than 10,000 flight hours. The data records are good. The trial evaluation was excellent. The military representatives stationed at the factory had a clear understanding of the production process and determined that the process met the standards...]
【…】
[Based on the above situation, our bureau believes that the WS10 engine has passed the military trial and production finalization test, and is qualified for subsequent assessment. Please sort out and submit relevant documents as soon as possible...]
Originally, Chang Haonan was a little worried about whether there were any problems that he needed to solve urgently.
The result is great news.
“Okay, okay, okay!”
Looking at the two thin pages of paper in his hand, Chang Haonan said three good words in a row, and then looked up at Zhang Liangping:
“Lao Zhang, please immediately draft a notice to Institute 606, explain the situation, and tell them to prepare for the craft assessment in early February. If everything goes well, it’s best to finish it before the Spring Festival!”
To sum up the contents of this document, Party A has basically recognized the performance and stability of the turbofan 10, and stated that it can organize production and finalization appraisal—
Compared with design finalization, the current national military standards do not provide detailed provisions on the specific process of production finalization.
It only states that production finalization should include four parts: organizational process and production condition assessment, troop trial, production finalization test, and organizational production finalization review and approval.
Generally speaking, during the process of small batch trial production and delivery, the second and third items can be completed incidentally.
As mentioned in the document just now.
The relevant documents required by the Equipment Bureau to be submitted by the Aerospace Power Group involve the remaining two items.
?This process does not include a large number of high-risk extreme tests like design finalization, but mainly some production site and written review work. It may even seem a bit boring.
But for Chang Haonan and the entire project team, it is the most important milestone.
Meaning that the technical status of the two turbofan 10A/B models has been frozen, small batch trial production can be ended, and the mass production stage has officially entered.
Don’t underestimate the difference between these words.
A lot of equipment, used until retired, may still be labeled as "small batch".
More importantly, after this, Chang Haonan can truly be freed from the Turbofan 10 project itself and devote his main energy to new challenges.
…
Three weeks passed quickly.
The production of Turbofan 10 is finalized and everything goes smoothly.
It even went so smoothly that it was beyond Chang Haonan''s expectations.
The date for the production finalization appraisal and production line acceptance meeting was finally set on February 10th, the eve of the Spring Festival.
Actually, it is similar to the graduation defense situation.
?When it is decided to hold an appraisal meeting, it means that the project has been stabilized -
Because the project in question simply cannot reach this step.
?Of course, even so, Chang Haonan was fully prepared.
Especially when it comes to ultra-short laser processing.
Mainly I am worried that if I explain it briefly, others will think it is not detailed enough, and if I explain it deeply, others will not understand.
?However, it turned out that he still thought too much.
With the support of a large amount of testing and usage data, there is simply no room for improvement.
So much so that the speed at which each link announces the approval of the certification is much faster than the speed at which the corresponding person in charge signs and seals it.
??The meeting that was originally planned to run from morning to night actually lasted less than three hours and there was no content...
?As a result, the entire venue fell into a somewhat embarrassing silence.
Only the rustling sound produced by the pen tip crossing the page...
Finally, it was Lu Zengwu, who was responsible for the entire finalization appraisal, who took the lead in breaking the silence:
"Mr. Chang, I saw the process description document you submitted. It says that the maximum annual output is expected to be nearly 200 units?"
For China, the last time it could produce so many engines annually was when it even built a turbojet 6 for the J-6...
"Um…"
Chang Haonan nodded slowly:
“Let’s estimate it conservatively...After all, we are required to submit a lower limit for the production type test, and there may actually be more.”
“But have you ever considered that most of this capacity… is likely to be idle?”
After Lu Zengwu finished speaking, he may have felt that this question was a little offensive, so he quickly added:
“This...problem related to production and finalization is completely over. Now it’s just my personal curiosity..."
Chang Haonan waved his hand to indicate his understanding:
“Right now, there may indeed be no need for so much aerospace production capacity, but as an enterprise we must not just look at the present, but must make plans for the future in advance.”
"Among other things, the SeA series engines we are currently involved in research and development may account for 20-30 units of production capacity per year in two to three years. As my country''s economic development continues to accelerate, the frequency of aviation equipment upgrades will also gradually increase. Increase, and including the backup parts required for overhaul and maintenance, it is not an exaggeration to have a production capacity of 100 units per year..."
“In addition, we expect to launch a turbofan 10 aerospace modification project after the year. The Navy’s demand for this model is not small. Calculating this, as long as we add one or two additional businesses, we can fill this 200 million yuan per year. Taiwan’s production capacity may not be enough…”
…”
After saying this, not only Lu Zengwu, but also many people who were bowing their heads to sign raised their heads.
“Can we…need…100 engines per year?”
?Lu Zengwu’s eyes widened and he couldn’t even speak very fluently.
Chang Haonanxin said: If I tell you that China can produce a total of more than 80 third- and fourth-generation aircraft of various types in the future, I am afraid I will scare you out of your wits...
?Of course, this is just a rant in my heart, and I definitely can’t say it out loud.
?So, he had no choice but to change his approach:
“Everything is possible in the future.”
“Director Lu, if you think about it, it doesn’t take too long. When the Turbofan 10 project was first established, who could have predicted what would happen five years later...”
(End of this chapter)