Chapter 443 A good shaft uses good steel

As a senior technician from a bearing company, Zhang Xu was naturally aware of the weight of the design document in his hand.

Designing parts according to process requirements is a basic skill in the mechanical design profession.

The group's annual assessment of the ability level of technical personnel will have 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 between...

It will definitely require 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.

It's not enough to see smoke coming out of the ancestral graves, it's only when the ancestral graves are 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 of study, 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.

Finally, 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 barely has a relationship 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..."

"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 stunned, they asked again:

"You must have known about the TORCH Multiphysics software launched by our company, right? I remember that your three names are on the trial list."

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 to complete, but the effect is really good.”

Obviously, although it has not been long since the beta version was released, TORCH Multiphysics, a revolutionary analysis tool, has already been put into use in many industries.

It's just that everyone's current imagination is still somewhat insufficient, or they are still in the process of learning and adapting to new tools, and it is not yet time to tap into their potential.

It is mainly used in the fields of fluid mechanics or structural mechanics analysis.

"Have you ever thought that the functions of TORCH Multiphysics can also be applied in the field of mechanical design? For example, dynamic analysis of the working status of bearings?"

Chang Haonan's words can be said to wake a person from his dream.

"hiss……"

"Mr. Chang means that we can also use this method..."

Representative Luo Zhuo, who had been silent just now, asked tentatively.

However, the beautiful dream was quickly broken by Chang Haonan:

"Now, I can design it this way, but you guys probably can't."

"Uh……"

"This……"

Zhang Xu and Zheng Chaoqun scratched their heads 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.

"TORCH Multiphysics 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."

Chang Haonan, who realized that he seemed to have hurt the other party's self-confidence, quickly explained:

"But this requires users to have a high level of input and output of parameters, and once an error occurs, it can easily cause unexpected damage to the source program. In the worst case, we may even need to send engineers to do operation and maintenance for you."

"but."

Having said this, Chang Haonan lightly knocked on the table:

“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. reduce."

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.

However, 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."

Now, 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 to achieve the performance I need."

"Better than M50, it is M50NiL..."

The topic finally entered a category that Zhang Xu is familiar with:

“Currently, the domestic ones are relatively good in terms of special steel for bearings, basically Xingcheng Special Steel, Northeast Special Steel, etc. Overseas, the ones we cooperate with most are Japan’s Chunakajima and Datong Steel... "

"and many more……"

Chang Haonan raised his hand to interrupt him:

"The application field of my bearing is rather... 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?"

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 there is a general direction. If the requirements are higher than this..."

He hesitated:

"I'm afraid it will be difficult to take it out in a short time."

"This...it doesn't matter."

Chang Haonan leaned on the back of 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, I can still make some qualitative judgments on issues such as carburizing, nitriding, and guide surface wear. of."