Chapter 78： unexpected failure

the next day.

Li Yi set off for Rongcheng and came to the experimental building of Jinyuan Technology.

laboratory.

Professor Liu Cheng and Professor Chen Guodong brought a group of researchers around a piece of equipment to conduct experiments.

The equipment looks like a square-shaped cabinet, square, with a height of 1.56 meters. The front is a piece of transparent glass, and you can see the complex internal structure.

There are many tiny metal holes built into the equipment, and complex annular conduits are arranged at the top and bottom to arrange various functional systems, high temperature systems, refrigeration systems, wind systems, electromagnetic force field systems, etc.

Seeing this scene, Li Yi knew that they were testing a 3D printer with new technology.

This device is very different from mainstream 3D printing devices.

The mainstream 3D printer has two parts: software and hardware. The hardware consists of motors, brackets, synchronous wheels, conveyor belts, etc. to form XYZ space axes. The printing coordinates generated by the software part control the hardware to print.

This printer has only one closed material compartment with many nozzles of nanomaterials inside, and that's it.

When Li Yi walked into the laboratory, they were conducting experiments. The new type of 3D printing was running. A large number of black mist-like nano-metal particles were sprayed out from dozens of nano-nozzles.

Hundreds of thousands of nano-nozzles are quickly intertwined inside, you are long and I am short, you are up and down, each performs its own duties, and the speed is fast. They are both separated and tightly combined, and the nano-metal particles are sprayed out. Materials are quickly intertwined.

"Open the magnetic valve and shape the mesh." Professor Chen Guodong looked at the operator beside him.

The operator hurriedly pressed the green button on the workbench, and immediately, with a 'hum', the base of the new 3D printer suddenly produced a sound of huge power running, just like the sound of a nuclear magnetic resonance machine starting, buzzing, Powerful.

With the release of the magnetic field, the nano-metal particles in the cabin seemed to be strongly restrained, and the structure between them became stronger, as if they had a command, they danced and gathered together tightly.

In the blink of an eye, black nano-powder materials gathered into strips of black silk threads, densely packed, all over the entire inner cabin, forming a three-dimensional network, like the veins of leaves, outlining the outline of a certain device.

"What are you printing?" Li Yi asked curiously, staring at the contents in the printing compartment.

"Mr. Li, the equipment has been successfully developed. We are conducting the 21st experimental test and are preparing to build an engine." Professor Chen Guodong saw Li Yi and hurried over to introduce him excitedly.

"Yeah! Are the test results out? How's the situation!" Li Yi nodded and asked with concern.

"There is a small problem. We have debugged it a few times. The pile is the parts made before, and the material quality is up to standard. However, the structural accuracy of the parts is still insufficient, and there are always errors." Professor Chen Guodong pointed to a pile of piles. The workbench of the parts equipment, explained helplessly.

Li Yi looked in the direction he was pointing, and saw that there were more than a dozen metal products on the workbench, including metal car models, metal engines, bearings,... Intricate metalwork.

Li Yigang wanted to ask about the quality of these metal products, and a researcher reported loudly: "Professor Chen, the wire mesh has been successfully formed and formed. The error value is less than 0.1%. The material concentration in the cabin is 0.037%. The environment has reached the standard."

"Okay! I'll take a look." Chen Guodong had no time to deal with Li Yi, and he went straight to the researcher to check the results.

On the liquid crystal screen, various data inside the printer are displayed, the wire mesh of nanomaterials has been condensed and formed, and the structure of the green mesh is consistent with the design drawing.

"Okay, start the next step, turn on the hot air blower to preheat, the temperature is 300, and prepare to fill the mixed material." Chen Guodong confirmed the result and ordered excitedly.

"Yes!" The operator bowed and then pressed the operation switch.

The next moment, the 3D printer buzzed again, and the air vents at the top and bottom of the cabin released hot air at the same time, and a large number of white metal powder particles spewed from the round holes.

As the temperature in the cabin increased, the nano-powder materials began to fuse and aggregate. Under the expectations of everyone, the cabin became red, and the mixed nano-metal particles began to condense. According to the mesh structure in the cabin, the mesh was attached. And end.

About fifteen minutes later, the nano-powder material in the cabin has already condensed into a piece of metal equipment, which is completely integrated.

"Okay, let's cool down and get out of the cabin, and start testing various parameters." Chen Guodong ordered excitedly.

Following Professor Chen Guodong's command, the operator released the coolant, and the glass door of the instrument's front door was opened.

With a "pop", the hatch of the printer opened, and a wave of hot air gushed out.

Four staff members in heat-insulating suits stepped forward, borrowed tools, and worked together to lift the finished products in the cabin and put them on a workbench.

A group of ready engineers gathered around and used various testing tools to test the engine's parameters of cylinder pressure, crankcase air leakage, cylinder air leakage, tracheal vacuum, ..., etc.

"Mr. Li, we built a V6 engine with a precise structure, based on the principle of discrete-stacking, driven by 3D software, and can directly achieve one-time printing and manufacturing, which is very efficient." Professor Chen Guodong watched his subordinates work and was excited. Introduce to Li Yi.

Li Yi nodded, watching them move curiously, waiting for the test results.

This printer is a low-tech black technology in the library. It belongs to the first-generation product of mechanical intelligence. The types of nano-metal materials used are limited, and only a dozen nano-metal particle materials are suitable for use. High pressure, and other special conditions and environments.

Soon, the test data came out.

Professor Chen Guodong and a group of researchers suddenly turned ugly.

Looking at the frustrated expressions of everyone, the result is self-evident. The engine test parameters failed, more or less, there were many small problems, and the finished product standard was not met.

"Mr. Li, I'm sorry, our work was not done well! There are still many problems to be solved, one is: cracks in the forged product, the other is: insufficient precision, and the third is the lack of equipment stability." Professor Chen Guodong looked sad. Looking at Li Yi, he apologized.

"Yeah! What are the reasons for these problems?" Li Yi nodded and asked with concern.

"The reason for the cracks in the previous tests was the use of aluminum alloy nanomaterials, which have a low melting point, low density, and can be strengthened. This nanomaterial has high chemical activity, and its molecular structure makes its constituent element aluminum. , zinc, magnesium and copper flow unevenly, resulting in cracks in the product.”

"Next, we will find a way to remove the thermal crack, control its microstructure, and use the properties of nano-metal particles to find suitable nanoparticles to fill these cracks and voids, ..."

"The accuracy is not enough. I suspect it is the compatibility between the software and the 3D printer. I will review this problem several times to find out the exact cause as soon as possible."

"Improving these two situations first should improve the stability of the equipment to a certain extent."

Professor Chen Guodong thought for a moment, looked at Li Yi, and introduced.

"Indeed, this printer is too functional and requires high precision. The current driver software cannot accurately support its operation." Professor Liu Cheng nodded in agreement, then looked at Li Yi, and the conversation changed. , begged: "Mr. Li, you have a very strong technical level in the field of IT software development, can you develop a special set of driver printing software for this printer?"

As soon as Professor Liu Cheng's voice fell, all the researchers at the scene looked at Li Yi, and Wan desperately hoped that Li Yi could take action.

Looking at everyone's expectations, Li Yi laughed dumbly and asked, "Is that simulation experiment system not enough for you?"

"Mr. Li, we need specific industrial software. The simulation experiment system is convenient for simulation experiments when designing products. In terms of product design, the degree of professionalism is somewhat insufficient." Professor Chen Guodong responded bluntly.

"Okay! Give it a try when I'm free." Li Yi agreed with a smile.