Chapter 1048

In fact, it is.

The KDP crystal, which was first created by the Americans, is just like that of the Soviet Union during the cold war. If you want to copy it, you can copy it. If you want to use it in sensitive fields, you can use it in sensitive fields. The Americans not only dare not fart, but also have to hold their noses and praise it.

One of the other countries is the one who dares to be so arrogant? The same is true in China. KDP crystal is open to the world in the field of research, but in the field of application, it's very narrow. Who wants to cross the red line? Even if it doesn't kill you in the field of optics, it doesn't kill you in other aspects.

This is all-round hegemony supported by super comprehensive national strength.

Therefore, Tengfei group can use KDP crystal to make solid-state lasers, but the treatment is not as good as Japan and South Korea. It not only pays twice the patent fee, but also produces KDP crystal solid-state lasers that can only be used for cutting general steel and aluminum alloy.

Yes, I'm right. I can't let you use it well after I.Q. tax. I limit you to general steel and aluminum alloy.

Tengfei group is an aviation and aerospace manufacturing enterprise. It is not a workshop for processing aluminum alloy doors and windows and iron fences in the compound. Such conditions in the United States are a challenge to the collective intelligence of Tengfei group.

The price is high, and there are conditions. The most important thing is that he insults his IQ. Five years ago, Zhuang Jianye, who wanted to take a shortcut and didn't want to be ashamed to kneel down to the relevant technology enterprises in the United States, finally couldn't kneel down, because kneeling down is not shameless, but including himself, tens of thousands of people's lives of Tengfei group will be cut off by the Americans.

So Zhuang Jianye slowly stood up with his arms, then dusted the soil on his knees, turned his head and said to his partner, "the shortcut is not allowed. Let's do it by ourselves."

As a result, it will be a world leader.

It's true that he is really the number one in the world. Otherwise, Zhuang Jianye could not say that his Tengfei group is the leader in the global laser field. This is not a boast, but a fact.

Among other things, the nb-6600dl ultra precision laser drilling machine, which amazes Aziz and others, uses LBO crystal with independent intellectual property rights as the main material of solid-state laser, which is different from KDP crystal in the United States. Besides, its processing technology is also not restricted by foreign countries.

Because Tengfei group adopts femtosecond laser processing technology instead of traditional pulse laser.

This is why Tengfei group can replace the original electrochemical drilling equipment with nb-6600dl ultra precision laser drilling, and become the key equipment of the new generation of flame tube and turbine blade film cooling hole processing in Tengfei group.

The key is that Tengfei group has mastered femtosecond laser processing technology.

Although both belong to laser, femtosecond laser is different from pulse laser. It has the characteristics of short time and high energy density. Because of this, the energy of femtosecond laser acting on the components is not the heat energy of pulse laser, but a Coulomb repulsion force similar to ionization.

Because the femtosecond laser interaction with the material is to remove the free electron excitation in the material, relying on the Coulomb repulsion between positively charged material molecules to remove the material, thus eliminating the heat generation in this mechanism.

At the same time, because the peak power of femtosecond laser is up to 10 MW, and the electric field intensity is very high, which is far greater than the Coulomb field in the atom, it is enough to ionize any material, so that the material in the working area can be removed in the form of plasma.

Based on this, femtosecond laser can perform micro precision cold processing on any material, such as hole making, micron level etching, cutting, etc., without thermal stress, recast layer, microcrack and other phenomena, which is enough to undertake the processing of turbine blade film cooling holes and flame tube precision cooling holes.

From the thermal processing of pulse laser to the plasma removal of femtosecond laser, Tengfei group has not only broken the monopoly in solid-state laser, but also walked in the forefront of the world in processing technology.

We should know that in today's world, the precision machining of film cooling holes is still dominated by electrochemical machining equipment.

The process can not be said not to be excellent. The problem is that the efficiency of electrochemical machining is not flattering. Moreover, the configuration of electrochemical solution is not the same for different materials and different compositions.

So often the cost of a milliliter of electrochemistry liquid can catch up with that of a gram of gold.

That's all. Anyway, the value of aeroengine itself is much more expensive than gold of the same weight. The problem is that the failure rate of electrochemical machining is too high.

There's no way. The chemical flow guide tube on the electrochemical machining equipment is easily corroded by the internal chemical solution, so it needs to be replaced frequently. In addition, the coordination mechanism of the equipment also needs to be real-time. Otherwise, the rapid or slow injection of chemical solution will affect the machining accuracy of materials.

I'll show you the whole equipment if I neglect it.

It doesn't matter if other equipment is repaired. Anyway, it's all machinery. It's no big deal if it's disassembled and installed. The problem is that the chemical solution is still in the electrochemical pore making equipment. It's not only expensive, but also poisonous.

So it's hard to produce, and it can drive people crazy when it's repaired.

No matter how crazy Tengfei group was, it had to endure at that time, because there was no other equipment that could replace the electrochemical precision hole processing equipment that could make the film cooling holes of turbine blades at room temperature at one time.The key of the second generation core machine of Tengfei group is the film cooling hole of the turbine blade. It is impossible to do it or not.

So no matter how troublesome it is, no matter how high the failure rate is, Tengfei group will recognize it by holding its nose.

But now, Tengfei group has mastered the solid-state laser and the femtosecond laser processing technology. In the past, it was able to process the film cooling hole which was so miserable at the production end all at once.

There is no need to adjust the chemical solution according to the material, no need to adjust the hose and speed, and no need to worry about the toxicity and possible failure of the chemical solution.

The same is room temperature, the same is cold processing, the same one-time molding.

Nb-6600dl ultra precision laser drilling machine is the same as the ordinary CNC machine. Put the parts on the worktable, and then input the NC program, the laser will use femtosecond laser to punch out micro precision holes.

If it is necessary to say that nb-6600dl ultra precision laser drilling machine is different from other precision hole processing equipment, it has extremely high environmental requirements for the workshop, almost reaching the environmental requirements for semiconductor production.

No way, who let nb-6600dl ultra precision laser drilling machine is full of precision optical components, a little bit of pollution will affect the processing accuracy, so the investment in the construction of the workshop is very considerable.

Even so, the efficiency and accuracy of nb-6600dl ultra precision laser drilling machine are there. Even if the huge investment in the workshop is included, the comprehensive cost is still one third less than that of electrochemical drilling equipment.

Because of this, as soon as Tengfei group mass produced nb-6600dl ultra precision laser drilling machine, the engine factory put nb-66 electrochemical drilling equipment on the handle into the cold palace and completed a leap forward upgrade.

However, many of those electrochemical hole making equipment are in good condition, so it's a pity to leave them in the warehouse. After Zhuang Jianye talked with Aziz and others about the laser hole making technology, Zhuang Jianye changed his mind: "our cooperation with the two countries is very sincere. I'm a real person. I've always been a gentleman before a villain, nb-6600dl ultra precision Laser drilling machine is an advanced equipment prohibited from export by our country. It is also specially approved by the head of our headquarters to bring Mr. Aziz in this time, so as to show our sincerity of cooperation.

But as far as I'm concerned, just looking at one thing is not sincerity. As I said in Pakistan with my two Highnesses, Abdullah and Mahmoud, since cooperation is mutually beneficial and win-win, if you invest money, we naturally need to come up with good technology and good workmanship. That's sincerity, right?

Therefore, nb-6600dl ultra precision laser drilling machine can't be sold, but it can always give other advanced equipment and technology to partners. I applied with the head of the headquarters, earnestly advised him for three days, and then let him relax, and agreed to our take-off group to sell nb-66 electro-chemical drilling equipment to the two countries. The original unit price of 200 million US dollars, in order to show sincerity, the price was reduced by half, 100 million US dollars One yuan! "

"Really?" Aziz smell speech, a pair of old eyes immediately open thief light.