Chapter 443 Use good steel for good shafts
As a senior technician from a bearing company, Zhang Xu can naturally realize the weight of the design document in his hand.
Designing parts according to process requirements is a basic skill in the mechanical design profession.
Every year the group assesses the ability level of technical personnel, there will be questions of similar nature.
Of course, considering the time limit for answering questions, the difficulty is definitely incomparable.
In fact, if he was asked to lead a design team to do this job, it would probably be possible to do it in a few months.
But the process in the middle...
It must be a lot of trial and error, iteration and optimization.
However, there is no such content in the design document in front of me. Instead, it is one step at a time, setting the parameters at the beginning seemingly at random, and then finishing it logically until the end.
Guess what?
Hey, he really got it right!
And it fits perfectly.
If someone in the group's ability level assessment saw someone hand in such an answer, Zhang Xu would most likely be judged as cheating.
In this case, it's either a matter of luck and choosing the correct answer among infinite possibilities with your eyes closed.
The smoke coming out of the ancestral graves is not enough, the ancestral graves must be burned.
Or you know the answer in advance and just write down the steps.
In fact, even if they cheat, few people would dare to do so blatantly, and it would be more or less symbolic for a few rounds.
However, the person who took out this thing was Chang Haonan after all.
They have already become famous in their own fields, so there is no need to travel thousands of miles to call these three little people over for fun.
Zhang Xu raised his head and glanced at the other two colleagues next to him and across from him.
From their expressions, Zhang Xu knew that everyone must be thinking the same thing now.
I was very curious, but I didn’t know how to speak for a while.
In the end, it was Zheng Chaoqun, the technical director from Dual Axis, who first broke the silence.
Fuzhou Bearing is the big brother of China's bearing industry, and it has barely had any contact with Chang Haonan - the 16 sets of bearings used in the previous experiments were purchased from them.
"Mr. Chang, although judging from the results, there should be no problem, the design method above is indeed not consistent with our...even the habits of foreign companies..."< br>
"It's okay if it doesn't match up."
Chang Haonan said something that was a bit difficult to pronounce.
Then, while the three of them were still a little stunned, they asked again:
"You should have heard about the TORCH Multiphysics software launched by our company, right? I remember that it is on the trial list. The names of your three families.”
The first person to react was Zhang Xu:
"Of course, our group has recently been manufacturing a large-diameter tapered roller bearing for Shengjing Heavy Machinery Group, which is used in super-large hydraulic turbines. At that time, we used this software to do structural analysis of the entire equipment. Although it was a bit confusing when I first started using it. It’s too customary, and many operations require command statements, but the effect is really good.”
Obviously, although it has not been long since the beta version was released, TORC Multiphysics, a revolutionary analysis tool, has already been used in many industries. put into application.
It’s just that everyone’s current imagination is still somewhat insufficient, or we are still in the process of learning and adapting to new tools, and it is not yet time to tap into the potential.
It is mainly used in the fields of fluid mechanics or structural mechanics analysis.
“Have you ever thought that the functions of TORCMultiphysics can also be applied in the field of mechanical design? For example, dynamic analysis of the working state of bearings?”
Chang Haonan's words can be said to awaken a person from a dream.
"Hiss..."
"Mr. Chang means that we can also use this method..." The representative of Luozhou who had been silent just now asked tentatively.
However, the beautiful dream was quickly broken by Chang Haonan:
"Now, I can use this method to design, but you guys shouldn't be able to do it yet."
"Uh..."
"This..."
Zhang Xu He Zheng Chaoqun scratched his head in embarrassment.
However, we know our own business. The R&D personnel of these companies actually do not have a deep theoretical foundation. I am afraid that it is indeed difficult to do things like dynamic analysis.
"TORCHMultiphysics comes with sufficient custom interfaces, so in theory, as long as I provide you with an accurate dynamic model, you can indeed obtain the corresponding dynamic results through programming."
I realized that I seemed to Chang Haonan, who somewhat hurt the other party's self-confidence, quickly explained:
"But this requires the user to have a high level of parameter input and output, and once a mistake is made, it is easy to cause unexpected damage to the source program. The worst thing is The situation may even require us to send engineers to do operation and maintenance for you.”
“But.”
At this point, Chang Haonan tapped the table lightly:
“I hope to isolate the entire dynamic analysis and calculation process step by step, encapsulate the core modeling and solving process and transfer it to the background processing, so as to form a relatively independent tool module, which can greatly meet the professional level requirements of users. Lower it.”
Zhang Xu and the other three people suddenly showed expressions of surprise.
If the bearing research and development work can be as easy and smooth as the design document in their hands now, then many problems can be easily solved.
But Chang Haonan changed the topic again:
“Of course, this requires a long process, especially a large amount of actual data to optimize different bearing types and working conditions. ”
At this time, all three people understood:
“So, Chang always hopes that we can take advantage of our size and provide these data?”
Zheng Chaoqun asked.
“Yes, but it’s more than that.”
Chang Haonan nodded:
"To make good bearings, it is not enough to have excellent structural design. Material handling, processing technology, even user service, and brand building must also be kept up with. After all, I am not from the machinery industry, and I have a lot of skills. For other projects, it is impossible to devote all your energy to these communication and liaison matters.”
“For example, the bearing you just saw requires better bearing steel than M50 to produce it. Achieve the performance I need."
"Better than M50, that is M50NiL..."
The topic finally entered a category that Zhang Xu is familiar with:
" At present, the domestically produced special steels for bearings are relatively good, including Xingcheng Special Steel, Northeast Special Steel, etc. Overseas, the ones we cooperate with most are Japan's Chunakajima and Datong Steel..."
"Wait..."
Chang Haonan raised his hand and interrupted him:
"The application field of my bearing is quite... special, and I don't consider importing steel from abroad."
"Moreover, even steel imported from abroad still cannot meet my requirements. We must develop higher-performance bearing steel."
"Better than M50NiL?"< br>
Zhang Xu was obviously shocked by this statement:
“M50NiL is a new steel material that SKF has only developed in recent years. We have not yet conquered the surface treatment technology from M50 to M50NiL in China, but at least we have A general direction, if the requirements are higher than this..."
He hesitated:
"I'm afraid it will be difficult to come up with it in a short time."
"This...it doesn't matter."
Chang Haonan leaned back on his chair with a calm look:
"You just need to report my needs to the upstream industry. Although I don't do much research on metal materials, On the issues of carburizing, nitriding, and guide surface wear, some qualitative judgments can still be made.”
(End of this chapter)