Niu Xiaoqiang quickly checked according to the standard process on the manual, and then he turned his head and asked, "Mr. Sam, I don't know if you can specify the specifications? ”

Niu Xiaoqiang asked Sam to ask the question, Sam did not hesitate, and after saying the specifications, he stretched out his hand and pointed to a wooden box next to the machine tool: "The original blank of the parts is in the box, you can find it yourself." ”

This is also a kind of test, there are several different blanks in the box, if you are not a knowledgeable person, it is estimated that you will not even be able to find the correct blank, let alone process the parts that meet the specifications.

This is naturally no difficulty for Niu Xiaoqiang, he bent down to look at it for a while, then picked up a blank of parts from the box and fixed the blank on the vice.

Sam nodded secretly, and Packard on the side whispered, "Uncle Sam, he didn't take the wrong blank, did he?"

Sam replied, "No." ”

Under the gaze of the four people, Niu Xiaoqiang quickly entered the processing parameters on the machine tool. He carefully checked the side, confirmed that it was correct, and started the machine. With the humming sound of the machine, the machine starts to work automatically.

Sam walked over to the monitor and checked it, nodding with satisfaction: "There is no problem, you are indeed a knowledgeable person." ”

Niu Xiaoqiang not only wants Sam to be satisfied with himself, he wants to completely suppress this old man and make him completely convinced of himself, so as not to spend effort to submit in the future.

I saw him smile and said: "Mr. Sam, CNC machine tools can only be regarded as pediatric for me, and what I am really good at is manual processing technology." ”

Most of the machining work in the United States is done by machine tools, and workers only need to learn the skills of operating machine tools. There is no need to rely on manual techniques for processing, as is the case with Chinese craftsmen.

The reason is that American companies can purchase the world's most advanced machine tools, as for China, even if you have money, foreign companies will not sell it to you, and Chinese technicians can only use manual instead of machine tools.

Therefore, Americans are not so familiar with manual processing technology, and after Sam listened to Niu Xiaoqiang's words, his face showed a puzzled look: "I don't know what you mean by manual processing technology?"

Niu Xiaoqiang looked at the wooden box containing the original parts: "Let me tell you this, it is still the original parts just now, I can make it meet the specifications specified by you through pure manual operation." ”

Sam looked at Niu Xiaoqiang with a shocked expression: "You, you're not joking with me, are you? The specifications I specified just now have reached the level of μ, are you sure you can rely solely on manual skills to achieve such accuracy?"

Niu Xiaoqiang smiled: "Okay, let me give it a try, won't you know?"

Sam was stunned for a moment before he spoke, "Okay, I'll let you try it and see if you can really do what you say." ”

Sam is now curious, eager to see how a person can produce high-precision parts by hand.

There is neither a milling machine nor a planer here, and Niu Xiaoqiang can only rely on this CNC machine tool if he wants to achieve manual processing.

He took off the machined parts, picked up a blank and fixed it on the vise, turned his head and asked, "There is no suitable equipment here, in order to save time, do I only process one face?"

Sam nodded: "No problem, just process a noodle." ”

Niu Xiaoqiang looked at Packard: "Please Mr. Packard prepare a grinding machine for me for grinding." ”

Although Packard doesn't know much about CNC machine tools, he is still very familiar with grinders, he usually uses this equipment to polish the body, and immediately nodded when he heard this: "I'll get it." ”

Niu Xiaoqiang didn't say much, picked up the caliper and measured the cutter head and the blank. After completing the measurement, he directly turned off the automatic mode of the CNC machine and manually controlled the machine to carry out the cutting process.

In the eyes of Linda and Tracy, Niu Xiaoqiang's actions didn't seem to be outstanding, but in the eyes of Sam, who was very knowledgeable, Niu Xiaoqiang's actions at the moment were simply challenging his cognition.

As the machine is running, the metal chips are cut off and rolled up and fall into the chip tank. Niu Xiaoqiang's expression was very focused, and he was paying attention to the trajectory of the knife head while adjusting the angle.

In less than a quarter of an hour, Niu Xiaoqiang completed three cutting operations. He shut down the machine, opened the vise and took out the blank of the part, which had been machined on one face.

Packard had brought in the grinder and had the power on. Niu Xiaoqiang touched the curved surface to be processed with his hand, and after knowing it, he put the original blank on the ground and used a grinder to carry out the final grinding operation.

The cacophony of metal grinding sounded, and the sparks scattered in all directions, attracting the frequent sideways glances of the four researchers who were working. They didn't know what Niu Xiaoqiang was doing, and their faces all showed curiosity.

Niu Xiaoqiang's movements are very skillful and very serious. After five sandings, he turned off the grinder and stretched out his fingers to rub back and forth on the curved surface. No matter how knowledgeable you are, you can see that this is an inspection.

Niu Xiaoqiang confirmed several times and confirmed that there was no problem, then he stood up and smiled at Sam, who was already stunned: "Mr. Sam, I have finished processing, please check it to see if it has reached the accuracy you specified." ”

Sam let out a sigh and placed the parts on a professional measuring instrument for inspection.

Packard and the others all gathered around, wanting to know the results of the examination as soon as possible.

To everyone's surprise, Sam inspected it and took the parts off and began to inspect the device.

Tracy couldn't help but ask, "Uncle Sam, what are you doing here?"

Sam replied, "I'm checking to see if this device is malfunctioning." ”

Tracy glanced at Packard and asked, "Why do you think this device is malfunctioning?"

"Because if it hadn't failed, it would have been incredible. ”

Linda seemed to understand something, and she interjected: "Could it be that Niu Xiaoqiang's machining accuracy has met the requirements after measurement?"

Sam nodded strangely, "It seems like this is the case at the moment." ”

Linda asked, "You just said that if the instrument didn't fail, the result would be incredible, why do you say that?"

This question also puzzled Packard and Tracy, and both of them agreed.

Sam simply stopped what he was doing, stood up and looked directly at the three of them: "The processing accuracy I just specified has reached the micron level, twenty microns to be exact, such a high precision, do you think it can be processed with pure manual technology?"