On the table of the Aerospace Application Plan Group, besides the documents, lay several blueprints of engine turbine blades.
The group leader, Li Congnian, was the Chief Engineer of Institute 625 of the Ministry of Aviation. He had pledged to the Ministry of Aviation to solve the defect rate issue of these engine blades within five years, or he would voluntarily step down.
At this moment, he was hunched over the table, meticulously verifying the tool path of the five-axis machining plan for the turbine blades, holding his breath.
The turbine blades of an aero engine are its heart, with complex shapes, difficult-to-machine materials, and extremely high precision requirements.
Previously, domestically, only rough contours could be milled by copying, followed by manual polishing with a file by a master with thirty years of experience, resulting in a persistently high defect rate.
However, this information covered everything from the 3D modeling of the blades, the tool path planning for five-axis linkage, the selection of cutting parameters, the model of the tools, the method of clamping, to the post-processing inspection plan, leaving no gaps in the entire chain.
What shocked him even more was that this plan perfectly matched the few second-hand 3-axis milling machines they were currently using, with even the blueprints for the modifications included.
"Chief Li, according to this plan, our blade processing defect rate can be reduced to below 5%," the designer beside him lifted his head, his voice trembling uncontrollably, "The processing time will drop from three days per piece to four hours per piece!"
Li Congnian's hand clenched tightly.
He had spent seven whole years on these blades, his hair half turned white, countless sleepless nights staring at the ceiling, wondering how to overcome this hurdle.
Now, the hurdle was gone.
A smooth road lay directly before him.
He lifted his head and murmured, "The engine is saved... our aircraft is saved..."
...
In the farthest corner of the meeting room, Li Maolin of the Shipbuilding Military Processing Specification Group had been squatting on the ground, looking at the blueprints for three whole hours, not even standing up when his legs went numb.
He was the Chief Engineer of the Huludao Nuclear Submarine Test Base, spending his life dealing with the propellers of nuclear submarines.
The most fatal shortcoming of domestic nuclear submarines was noise.
To reduce the noise, he and his team had tried for over a decade, altering dozens of designs, but without achieving the necessary machining precision, even the best designs were just theoretical exercises.
Yet, in this information, the multi-axis linkage processing plan for large skewed propellers was clearly detailed, from the line modeling, five-axis machining path, cutting process, to post-processing vibration suppression and precision inspection. Even the assembly process for matching the propeller with the stern shaft was thoroughly specified.
"Chief Li, processing according to this plan, the surface line error of the propeller blades can be controlled within 0.01 millimeters," the engineer beside him squatted down, his voice almost uncontrollably excited, "Underwater noise can be reduced by at least 15 decibels! Our nuclear submarines can finally truly hide underwater!"
Li Maolin lifted his head, two clear tear tracks visible on his dark face.
He said nothing, just nodded heavily.
... This chapter was copied from g.com without permission.
Time slipped away with the movement of the pen.
Until precisely eight o'clock in the evening, Lu Bingwen was the first to stand up.
The elderly man clutched a thick stack of verification draft papers, his frail body trembling slightly under the light.
He stood at the front of the meeting room, his gaze sweeping across the room, over every expert who had lifted their head.
The meeting room fell into complete silence.
Everyone's eyes focused on him, holding their breath.
Lu Bingwen cleared his throat, but when he spoke, his voice still trembled uncontrollably, "CNC System Algorithm Group, verification complete. The five-axis linkage real-time interpolation algorithm, tool radius compensation algorithm, and thermal deformation error compensation algorithm are all mature industrial-grade solutions, with authentic, complete code that can be directly compiled and applied.
We confirm, this information is absolutely true!"
As his words fell, Wang Hongbin from the Complete Machine Mechanical Design Group immediately stood up, his booming voice echoing in the silent meeting room, "Complete Machine Mechanical Design Group, verification complete! Blueprints, tolerance standards, design logic, the entire chain is complete, manufacturability is 100%, fully meeting industrial mass production standards! We confirm, this information is absolutely true!"
"Servo Drive Technology Group, verification complete! Control logic, closed-loop solutions, adaptation standards, all are authentic and effective, with a technical level 5-8 years ahead of the current domestic top achievements! We confirm, the information is absolutely true!"
"Core Component Processing Technology Group, verification complete! The full-process technology specifications are complete, can be directly applied, thoroughly solving the core pain points of domestic precision part processing! We confirm, the information is absolutely true!"
"Aerospace Application Plan Group, verification complete! The processing plan can be directly adapted to domestic military projects under research, with all core bottlenecks broken through, authentic and effective! We confirm, the information is absolutely true!"
"Shipbuilding Military Processing Specification Group, verification complete! The propeller processing plan is complete and applicable, directly solving the core shortcoming of domestic nuclear submarines, authentic and effective! We confirm, the information is absolutely true!"
Six groups, six confirmations, each louder and more resolute than the last.
With each confirmation, the air in the meeting room grew hotter.
When the last confirmation fell, the entire meeting room erupted.
The emotions suppressed for nine whole hours burst forth like a flood breaking through a dam!
Lu Bingwen stood in place, watching the room full of old comrades trembling with excitement, and the hard-nosed man who had shed few tears in his life could no longer hold back, covering his face and sobbing.
In his sobs were the years of being choked by others, the despair of countless all-nighters with no hope in sight, the ecstasy of finally seeing the dawn, and the relief of finally being able to lay down a burden carried for a lifetime.
"We've been at this all our lives..." he sobbed, barely able to catch his breath, as the professor beside him quickly supported him. He grabbed the other's arm, choking out, "Choked by others all our lives... now... now we finally have our own things... finally don't have to look at others' faces..."
The surrounding experts also had reddened eyes.
Wang Hongbin, the burly man from the Northeast, hugged his colleague tightly, patting the other's back forcefully, repeatedly muttering, "We did it! We did it!"
Li Congnian leaned against the wall, wiping his face with his hand, which came away wet.
Li Maolin squatted on the ground, his shoulders shaking, still clutching the propeller blueprint tightly.
All their lives, they just wanted to build a high-end machine tool for the country, a qualified engine blade for the military, a quiet propeller for the navy.
For this goal, they had turned their hair white, worn out their bodies, even sent off colleagues who had fallen at their posts, yet were always blocked by an impenetrable line of blockade.
Now, this blockade had been smashed open by this sudden information.
No, it had been completely dismantled, wall and door alike.
Zhou Huaichang stood in the corner of the meeting room, watching this scene, and the heart that had been suspended all day finally settled heavily back into his chest.
All their previous doubts, all their apprehensions, all their unease, vanished in those six confirmations.
This was not a prank by the Americans, not a trap, not false bait information.
This was truly, genuinely, a core asset capable of rewriting the nation's destiny!
He took a deep breath, signaling to the leaders and staff officers beside him in a low voice, "Quick, calm the experts, don't let the old comrades get too excited, high blood pressure would be terrible. Quickly bring in hot meals and drinks, let everyone take a breather."
The staff officers immediately moved, carefully helping the emotionally charged old experts to sit down, handing them hot water, bringing in the heated meals, and the noise in the meeting room gradually subsided, leaving only suppressed sobs and low conversations.
Zhou Huaichang turned and walked out of the meeting room, standing in the corridor.
The wind in the corridor carried a slight chill, blowing on his face, instantly clearing his heated mind.
He leaned against the cold wall, his mind repeatedly echoing two things.
One, was this absolutely true five-axis linkage technology information, capable of rewriting the nation's industrial and defense destiny.
The other, was the mysterious young person, whose name and identity were unknown, yet who danced on the knife's edge in Hong Kong, intercepting the traitor under the nose of the AIC, retrieving the top-secret intelligence about to be leaked, and silently delivering this astounding gift back to the country.
These two matters, either of which had already far exceeded his authority to handle.
This matter, here with him, could no longer be contained!
It must be reported to higher levels immediately.
Zhou Huaichang stood up straight, adjusted his crisp military uniform, the shock in his eyes gradually settling into extreme seriousness.
He turned and strode towards the secure communication room at the end of the corridor.
The red secure telephone was there.