Hoffman explained in detail.

"Does the fastest car win the race? Everyone who watches a race knows that there are other factors besides speed that affect the outcome of a race.

The first is that it is important for the driver to know the track and know where to make a sharp turn so that he can slow down at the right time to get through the corner safely and efficiently.

In the process of using high-speed processing molds, the digital display technology of track monitoring to be processed can obtain the information of the occurrence of sharp curves in advance, which plays the same role.

In addition, when a driver drives around the track, the consistency of the movement, and whether or not the driver can brake and accelerate skillfully have a very important impact on the driver's performance.

From this, we have designed our own wage, bell acceleration and deceleration, and the rail to be processed uses slow acceleration and deceleration instead of sudden speed change to ensure the smooth acceleration of the machine.

In addition, there are other similarities between racing cars and mold machining processes, such as the power of a racing engine similar to that of a machine tool drive and motor, the weight of a racing car can be compared to the weight of the moving components in a machine tool, and the stiffness and strength of a racing car are similar to the strength and stiffness of a machine tool. The ability to correct for errors in a particular path is very similar to the ability of a driver to keep the car in the lane.

Another situation, similar to that of the current one, is that those cars that aren't the fastest often require well-rounded drivers.

In the past, many people thought that it was difficult to achieve high machining accuracy while cutting at high speeds, but now, because the process has been greatly improved, even ordinary machine tools can be built to complete the job satisfactorily. ”

Hoffman said as he walked, and from time to time he checked the machine tool being processed, eager to tell the other party the essence.

"Wow, doesn't that mean your company is already the number one in the world?"

"Oh, the world's first is far from the same, we are just a small business, our current process can only be said to be in accordance with the current state of the product to obtain the best performance, limiting the maximum feed speed of mold processing is a lot of factors, the main is that the technology is difficult, to improve the technology on the one hand to master the higher process, on the other hand, to improve the mechanical structure of the machine tool.

The performance of today's machine tools is still far from the limit, so we CNC still have a long way to go. ”

Liu Lang nodded, Hoffman's CNC company is indeed a very good company, the level of these workers is indeed very high, much stronger than the employees of North Industries Group Corporation, of course, this is not a matter of personal ability, but the inheritance of industrial technology, on the basic skills of the two are similar, their own workers lack only the accumulation of knowledge.

CNC company's tool manufacturing process is mainly in the sharpening of the blade, the design of the blade, and the uniqueness of the round knife forging.

"Mr. Hoffman, your factory is really an eye-opener for me, I believe that my friend will definitely cooperate with you, and when I go back, I will talk to him, you just wait to contact him!"

Liu Lang has decided to cooperate with the other party, and the first batch will buy seven types of knives, and buy tens of thousands of sets first.

Hoffman smiled, did not show how happy, in his eyes, China's orders are dispensable, even if there is probably not much money, after all, China's market is too low-end, most companies are not able to use his products, but even if there is no order, he is also very happy, because he knows the chairman of Shengtang Company, this kind of network is not anyone's master.

At noon, Liu Lang had a meal in the canteen of the CNC company, the food was okay, just an ordinary meal.

After dinner, Liu Lang said goodbye and left, and Hoffman personally drove the two back to the hotel.

Today's trip to Bochum is over, and the next stop is Dortmund.

The two did not stop in Bochum, and bought a train ticket to Dortmund, both cities belong to the Ruhr area, so the distance is very close, less than 50 kilometers, and the train arrives in half an hour.

Dortmund is also a very famous city in Germany, the specialty is steel and beer, but the city was rich in coal at the beginning, relying on coal gradually grew, but with continuous mining has become a resource-exhausted city, which is similar to Fucheng, but Dortmund through industrial manufacturing rapid transformation, eventually became an important city in the Ruhr area, in Dortmund can have many more factories than Bochum.

It was only four o'clock in the afternoon when Liu Lang and his wife arrived in Dortmund, and they took a taxi to the city center, but they saw a large area of green space and parks along the way, and the so-called industrial areas were all in the suburbs, and there were no industrial enterprises in the city.

This is also a characteristic of the transformation of cities, which have left local residents with not only economic hardship, but also environmental damage.

This is especially evident in the current Fucheng, where large areas of subsidence have begun to affect the lives of residents, and almost nothing can be done in this subsidence area, and land is equivalent to waste.

Twenty years later, the subsidence area of Fucheng covers an area of more than 100 square kilometers, most of which are around the city.

In addition to the destruction of land resources, there is also the impact of spontaneous combustion of gangue mountain on the air, as well as the pollution of the land, these are not the most powerful, the huge open-pit pit covering an area of more than ten square kilometers and the deepest part of 300 meters is really a "pit", this big pit is like the scar of Fucheng, it took 50 years for the miners of Fucheng to dig out, and it will take 50 years to fill it.

Land subsidence, land pollution, air pollution, these are the problems of all resource-exhausted cities, so cities that have successfully transformed have stepped up their efforts to improve the environment, and this is the case with Dortmund.

Liu Lang chatted with the driver, and the other party saw that this yellow-skinned child spoke German so well, and thought that he grew up in Germany, and when he heard that this child was Chinese, he thought for a moment, he was thinking about what kind of country China is, in the eighties, Westerners knew almost zero about China.

After staying at a Hilton hotel in the city center and having dinner, Liu Lang and Sun Hu wandered the streets of Dortmund for more than an hour, a city a little better than Bochum, and at least some bars were open at eight o'clock in the evening.

There are basically no entertainment venues open after 8 o'clock in Bochum, in fact, there are no entertainment venues in the whole of Germany, and the only place they meet is the bar, especially when there is a football match, where a large number of fans gather here, drinking beer and shouting.