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Chapter 618 Breaking news

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    ?????????????????????????????????????????? But no one has the time to pierce this layer of window paper, because everyone who can be here knows that the most important weapon of the country is really very important.

    So the topic was ignored by these military leaders and technical officers before it even came up, and they continued to criticize the numerous EDM CNC equipment equipped by Tengfei Aviation Power.

    "This explains why there are so many EDM CNC machine tools, but there is no dedicated EDM drilling equipment for turbine blades. To make supporting equipment for aerospace, they make a lot of bottles and cans, and they don't need this thing, but the result is  It adds a shortcoming to Ascendas Aviation Power, which is a pity."

    After realizing that Ascendas Group was providing professional equipment for the aerospace industry, and after listening to other people's comments, the air force chief sighed, his tone a little disappointed. Drilling turbine blades is the most difficult and most difficult task in aerospace engine production.  High-end craftsmanship, because this kind of craft hole is none other than the film cooling hole of the turbine blade.

    The EDM process is precisely one of the most suitable processes for this type of process hole. As a result, the Air Force chief searched for a long time, but could not find similar equipment, and then he expressed similar regrets.

    As a result, just when the Air Force chief was about to continue to express his opinions, complaining that the aerospace sector was a bit biased in terms of balanced development, Liu Chun at the front said loudly: "This leader's question is well raised. It's not that we don't have dedicated  EDM CNC hole processing equipment"

    As soon as these words came out, the expression on the face of the Air Force chief who was still feeling regretful a moment ago froze immediately. Does Tengfei Aviation Power have professional EDM CNC hole processing equipment?  Where is it? Why didn¡¯t I see it?

    Just when the chief was confused, Liu Chun pointed in the opposite direction: "That's where it is. The nb-620 electric spark CNC drilling machine is mainly used for annular combustion chambers of aero engines, outer honeycomb components and other parts.  Process hole processing"

    Liu Chun's face was still filled with a smile, and the old man acted as if he hadn't seen the strange look on the officer's face who had just asked the question. He still spoke with extraordinary confidence and forcefulness, and it was a slippery slope to play around with the concept.

    The head of the Air Force who fell behind had the same doubts, and his face was also ugly. He had seen that equipment a long time ago. Anyone who was not blind could see that the annular combustion chamber of the WD-30S turbofan engine was being processed on it.  The process hole, however, is also a process hole, the annular combustion chamber and the film cooling holes on the turbine blades are not at the same level at all.

    "Mr. Liu, you may not understand what I mean. We have noticed the nb-620 electric spark CNC drilling machine you mentioned just now. It is a good precision equipment, but what we want to know more is, does your company have any  Special processing equipment for precision holes in turbine blades based on EDM CNC technology?"

    Just when the chief of the Air Force and others were a little annoyed by Liu Chun's eloquent introduction, and some couldn't help but prepare to ask the question themselves, the technical officer who just asked the question finally took advantage of Liu Chun's pause to breathe.  If you want to ask, just ask.

    Of course, his attitude is very polite, but there is no other way. Compared with other military leaders who carry generals, his level is still low, so naturally he cannot be as straightforward as those leaders.

    But the questions he asked were still clear-cut and did not beat around the bush, which allowed many leaders who were distracted by some unique production and processing equipment to refocus on Liu Chun.

    In fact, there are many people who have found similar problems. It's just that many people haven't digested the situation of other devices and haven't remembered to ask. At this time, someone suddenly asked a question, which means that it resonated with these people, so naturally they should pay attention to it.  .

    Liu Chun didn't expect that the problem would be discovered so soon. He was slightly startled. He turned to look at Zhuang Jianye, who was communicating alone with the head of the headquarters. Seeing that there was no reaction from him, he understood in his heart, and his Maitreya-like smile returned.  appeared on his face, and he still said confidently to the leaders and chiefs who were looking at them one after another: "We do not have special EDM CNC hole processing equipment for aircraft engine turbine blades, especially high-pressure turbine blades, because we use these.  One process is delivered to the nb-711 electrochemical hole processing equipment on workbench No. 8."

    As soon as these words came out, the questioning technical officer in front of him frowned, and the face of the air force chief behind the crowd was also full of doubts.

    They automatically ignored the nb-711 model. Obviously, the naming of this very poor model belongs to Ascendas Group¡¯s own problem, but what the hell is electrochemical hole processing equipment?  Why haven't you heard of it before?

    Not just these two people, other leaders and chiefs who have some knowledge of aerospace production are very busy. They know all kinds of hole processing equipment, but they have never seen electrochemical hole processing equipment.

    ¡°The turbine front temperature control system of the wd-30s turbofan engine we produce is? is 986 degrees Celsius, but the temperature in front of the turbine of the improved wd-30sf turbofan engine has increased to 1228 degrees Celsius. When the two engines have the same mass, the reason why there is such a significant jump is due to nb-711  Type electrochemical hole machining equipment precisely processes the film cooling holes of turbine blades. Leaders and chiefs, please go this way. Workbench No. 8 is over there.  "

    Just when everyone was doubtful or confused, Liu Chun suddenly threw out a blockbuster data, which immediately caused an uproar. You must know that if the aeroengine does not increase by 100 degrees Celsius, the thrust will increase by 20%.

    ????????????????????????????? From the WD-30S turbofan engine to the WD-30SF turbofan engine, the temperature in front of the turbine has increased by a full 242 degrees Celsius, and the performance has jumped by nearly 50%!

    In other words, the thrust of wd-30s is 586 kilograms. If the thrust is increased by 50%, the thrust of wd-30sf is 870 kilograms.

    870 kilograms!

    This thrust is enough to power a small aircraft. If dual engines are used, it can even satisfy a certain light intermediate trainer aircraft that is worried about power.

    After all, the thrust of the tfe-731 turbofan engine produced by Honeywell of the United States was only 1,600 kilograms, but the total mass of the engine reached 350 kilograms.

    The total mass of the wd-30s turbofan engine is only 142 kilograms. In other words, the wd-30sf has achieved a 50% increase in thrust due to technological improvements. The total mass of the two engines is less than 300 kilograms, but the total thrust  But it exceeds the single-engine tfe-731 turbofan engine.

    This can no longer be called good news for a certain light intermediate trainer aircraft due to the shutdown of its power unit, but super heavy and disruptive news.

    Because of this, the eyes of the leaders and chiefs who had been concerned about the progress of a certain light intermediate trainer aircraft suddenly lit up. Even the head of the headquarters subconsciously looked at Liu Chun, who was already walking towards the 8 Hao workbench, and turned to look at  Zhuang Jianye: "Is it the improved model reported last time?"

    "We have made performance improvements again. I thought I would report it to the headquarters after the test is completed, so here you are." Zhuang Jianye said confidently and smiled brightly.

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