Chapter 770

When he said this, Zhuang Jianye was bold and heroic, and he was surprised to hear that.

However, he was surprised that he didn't believe all Zhuang Jianye's lies. Instead, he looked at the devices one by one carefully and found that what Zhuang Jianye said was true.

Others may not quite understand what ultrasonic vibration machining technology is. However, merlinz, who started his career in aviation technology and set foot in aerospace spare parts, has heard about it for a long time.

Even in the early years when Xiantong aviation manufacturing company had a good profit, merlinz, who had just entered Xiantong senior management, advocated the introduction of several similar equipment for processing some materials with high hardness and brittleness.

Therefore, ultrasonic vibration machining technology is not unfamiliar.

The so-called ultrasonic vibration processing technology, as the name suggests, is to add vibration elements in the machining process, because the working frequency range of vibration is generally 17.5 ~ 48 kHz, which basically belongs to the frequency range of ultrasonic, so it is called "ultrasonic vibration processing".

As for the generation of ultrasonic vibration, through the piezoelectric ceramic as the core of the high-level signal generator, through the discharge effect of current, the piezoelectric ceramic corresponding shrinkage and expansion, so as to get 17.5 ~ 48 kHz high-frequency vibration, but at this time the amplitude is not big, only 2 ~ 3 microns, not enough to affect the machining tool or drill.

Therefore, it is necessary to further enlarge the amplitude to 3 ~ 50 microns through the device of amplitude transformer, and then through a series of software and hardware control, at the maximum amplitude point, attach to the diamond particles or other hard materials of the tool or drill, and then jointly impact on the tool surface, so as to achieve the effect of collaborative processing.

In this way, the benefits are obvious. Due to the additional properties of ultrasonic vibration, the mechanical processing equipment changes from periodic vibration to regular forced vibration under periodic excitation, which not only suppresses the vibration of the tool or drill, reduces the force and high temperature produced by machining, but also enhances the dynamic stability of the machining system So as to improve the quality of machining and the service life of the cutter or drill bit.

Of course, if you want to achieve the above advantages, it is not as simple as adding an ultrasonic vibration processing generator, but you need to have an extraordinary understanding of the machining equipment.

This is not simply to be able to install it after disassembly. Apart from being able to repair some problems skillfully, we need to be familiar with every detail data.

The reason for this is very simple, that is, the application of ultrasonic vibration processing technology of mechanical processing equipment has a key step, that is, adjustment.

Just like the chassis of an automobile, it's not really produced. It can be opened by directly installing an iron shell. The adjustment of the chassis is also an important part. It's not good to be too soft or too hard. Only by being impartial can the best performance of the vehicle be achieved.

The same is true for the machining equipment using ultrasonic vibration processing technology. It is not difficult to install an ultrasonic vibration generator. The principle is there. As long as the ordinary workers who have received basic machining training look at the manual, they can easily refit an equipment.

The question is, can such a device work?

Of course not.

The reason is very simple. Does the frequency and amplitude of ultrasonic vibration match the speed of spindle? Can it be transferred to the tool or bit of the equipment at the point of maximum amplitude? Does the feed rate of the equipment match? If the equipment has a gear, do you want to reduce the amplitude of the ultrasonic generator first or control the spindle speed first? If it is a numerical control device, how can the functions of ultrasonic vibration be integrated into the numerical control program

All kinds of problems are different, which can not be completed by general engineers who are familiar with mechanical science, but can only be completed by senior organizations who are fully familiar with different equipment, different processes and different processes. In other words, professional organizations with rich experience in the use of equipment and related manufacturing technology are qualified to play with these things.

Because of this, in the world, the ultrasonic vibration processing technology can be said to be very few, but the former Soviet Union, Japan and Germany are among the best.

and with the collapse of the Soviet Union, Russia has been lagging behind in the field of numerical control machine tools. The ultrasonic vibration machining technology, which was proud of before, began to decline like this country. Japan is a bit better, but with the burst of asset bubble, the economy began to stagnate, and Japan is weak in this respect.

Only after the agreement, Germany still takes the lead in ultrasonic vibration machining technology, which is also an important reason why Germany's machining equipment is famous in the world. In addition to its solid foundation in the production of mechanical equipment, Germany has done the best in the comprehensive adjustment of ultrasonic vibration machining technology, so that the stability, controllability and machining accuracy of German machine tools using this technology are the highest All over the world.

Even the United States, which boasts of its technology crushing the solar system, laments that it's not that the United States can't play with ultrasonic vibration processing technology, but that the adjustment of the United States is not as smooth as that of the Germans. In addition, Americans prefer to use high-end processing equipment to manufacture high-end products.

So the customer asked, what is your product made of?

A: laser backing, electron beam coating, and plasma isolation can make you pay more for labor services.If the answer is that it is produced with the mechanical processing equipment equipped with ultrasonic vibration processing technology, which forces gege to drop several levels immediately, how can it start from the ground?

This is the reason why Xiantong company prepared to introduce similar equipment at the beginning, but finally gave up and turned to an electron beam equipment with a price three times higher.

No way, other people have, you do not, the customer thought that your production technology is backward, will not give you orders.

But as a result, the price of aerospace spare parts in the United States is surging upward, and Lockheed, which wants to reduce costs, has to turn around and seek the optimal solution.

The application of ultrasonic vibration processing technology of various types of processing equipment is one of the few ways to control the cost of aerospace products. After all, the cost of mechanical processing equipment is much lower than that of laser, electron beam and other high-tech equipment. Even if the ultrasonic vibration processing technology is added, its full capacity is only half of that of laser, electron beam and other high-tech equipment.

But what it makes is no better than laser, electron beam and other sophisticated equipment, and even in the processing of carbon fiber composites and metal matrix composites, there are advantages that other equipment does not have.

So it's not empty talk that Zhuang Jianye says he wants to bring down the cost of the satellite, but a real insight that can be realized.

However, merlinz is not concerned about these at the moment. He is looking at the dazzling DL series Aerospace professional equipment in front of him. His nose is constantly rising. A fat face dissatisfied with freckles is as red as a cooked crab. It's not excited, but stimulated by many devices applying ultrasonic vibration processing technology.

That the heart can not help roaring, issued a circular soul three questions: "is this China? Has Tengfei group achieved so much in special space equipment? Well Am I dreaming, sleepwalking in my living room... "