Zhuang Jianye was really powerless to complain when he saw this scene, whether Liu Chun's old guy's mouth was opened or kissed by poisoned milk, how long has it been, and Professor Zhao has been excited twice.

That's the person who has just taken the fast-acting heart-saving pill, if this is brought over by Liu Chun's words, it will be a big mess.

So taking advantage of the change in Professor Zhao's tone, which had not yet reached the excited appearance that seemed to be soaring, Zhuang Jianye hurriedly stepped forward, squeezed Liu Chun away, and soothed the old man's back with his hand: "Professor Zhao, don't think about it, our laser welding equipment is not mature yet, and at most we can weld a small part such as a bearing......"

Zhuang Jianye wanted to continue to explain, but he raised Professor Zhao's arm and shook it in front of him to stop Zhuang Jianye's continued words: "I'm fine, I'm fine, I can bear it, I can bear it~~~"

From the EJ9 e-book welding machine, to the silicon nitride bearing, and then to the current laser welding machine, even Professor Zhao's old heart is a little numb in fragility, so he unscrewed the thermos cup he carried with him, and after drinking two sips of warm water, he breathed a sigh of relief: "Laser welding machine, laser welding process...... It's a good thing, it's a good thing......"

As he spoke, he picked up the ring outside the bearing, looked at it carefully several times, and praised: "I can't even find the weld, if I don't point it out, where will it be clear that this is actually two pieces of mild steel welded together?"

Then he handed the ring in his hand to Tong Xia beside him: "Look at it, this is the cutting-edge welding process...... As soon as the voice fell, Professor Zhao sneered: "The French think that the aluminum honeycomb composite material on their 'Dolphin' helicopter is world-class, unparalleled in the world.

Now, we have a laser welding process, which can directly weld the aluminum honeycomb from the inside to the outside into a whole, and its process performance is safer and more convenient than the chemically synthesized adhesive adhesive of the French, and more importantly, the overall structure is still very firm. ”

Professor Zhao's words became happier the more he spoke, and Tong Xia on the side also nodded frequently, looking at his appearance, he knew that he was not lightly tossed by the French in this regard.

But there is no way, who makes the domestic there is no advanced gluing process of aluminum honeycomb composite materials, some people may ask, Tengfei Aviation Technology R&D Center is not very good in this regard, it should be able to do.

The problem is that although the Tengfei Aviation Technology R&D Center is strong in aerospace advanced materials, it mainly focuses on carbon fiber materials and their derivatives, and metal materials are actually quite average.

Although the aluminum honeycomb composite material is called a composite material, in fact, the main material is still metal, but a very thin aluminum honeycomb structure is added between the two aluminum plates, so as to enhance the structural strength of the plate.

In this regard, Tengfei Aviation Technology R&D Center can only be said to be general, and naturally there is no unique gluing process, if it is replaced with aramid paper honeycomb structure, it is another matter.

It is too normal for developed countries to export technology to the outside world, more for the purpose of cutting leeks and shearing sheep, and it is too normal for a screw to open its mouth for 1,000 dollars.

Professor Zhao also knows this truth, but he also feels very breathless, now well, Tengfei Group actually has a laser welding machine, you must know that this precision welding process, the minimum solder joint can be controlled at about 1 micron, the aluminum honeycomb structure in the aluminum honeycomb composite material is light and thin and does not hit 1 micron, it can be welded by laser welding process.

The result is self-evident, simplifying the production process and improving efficiency, reducing the pollution caused by chemical binders and making the manufacturing process more environmentally friendly.

Of course, more importantly, the use of laser welding process can achieve structural weight reduction, which is a great benefit for any kind of aircraft.

Because of this, after learning that Tengfei Group has a laser welding machine, Professor Zhao was sincerely happy, and handed over the bearing ring to Tong Xia to carefully experience the weld seam, Professor Zhao turned his head to look at Zhuang Jianye with a smile: "Xiaozhuang, is your laser welding machine also imported from the United States?"

"We wanted to buy it, but unfortunately the Yankees didn't sell it, so we had to do it ourselves. Before Zhuang Jianye could answer, Liu Chun on the side took the lead to interject.

"The laser welding machine was developed by you?" Professor Zhao changed his tone a little, Zhuang Jianye chuckled in his heart, and touched Liu Chun with his foot, so that this old man would not be stimulated anymore, but he didn't think that Liu Chun's old foot girl touched himself twice.

Zhuang Jianye tilted his head in surprise, and saw Liu Chun's old man winking at him, as if to say, don't worry, the little thing between the old men, Lao Liu and I are measured.

Zhuang Jianye, who wanted to stop it, immediately shut up, and then listened to Liu Chun continue: "Of course, we cooperated with the North China Institute of Optics to develop a 600W carbon dioxide laser, based on which we developed our own laser welding machine, and accumulated a lot of welding data, and the next step is to develop a 1000W carbon dioxide laser, once successful, it will be applied to the D-30-Z series turboshaft engine that we have just completed the initial test......"

"Wait......" Liu Chun wanted to continue, but was stopped by Professor Zhao: "The D-30-Z series turboshaft engine has completed the initial test run?"

Liu Chun nodded: "Last month's matter, we also reported to the light helicopter development project team, they just sent someone to take a look, filled out a report and left, no way, who let us Yes D-30-Z series turboshaft engine is a backup power system, no one has 8 red seedlings of the turboshaft, just like our aramid paper honeycomb structure composite materials, obviously more advanced than the French aluminum honeycomb, but the light helicopter development project team does not look down."

Brother Zhao, don't you know, how many sins we have suffered over the years, how much we have suffered, they all say that Maxima often has and Bole does not often, we just have suffered the loss of Bole, grandpa does not hurt, uncle does not love, what's the use of making good things? Isn't it thrown there and smelly? But it doesn't matter if they are young and young, we who have come over look distressed~~"

Liu Chun's words are full of voice and deeds, and the white and white old face twitches just like the seven or eight people in the Yonghong Factory who were crammed into a small room of more than ten square meters.

Professor Zhao was shocked at first, he didn't expect Tengfei Group to have so many good things in his hands, but the next moment he was made angry by Liu Chun's words, he had never seen such a bully, and immediately slapped his thigh: "Others don't use it, I use the old man, Xiao Tong, Xiao Wu, I will draft a report when I go back at night, and officially report our helicopter project." ”