Start with the aviation industry

Chapter 101 There is still a long way to go
Hearing this, Lin Feng was slightly shocked!
What's wrong!

The problem has been perfectly solved, and the remaining turboshaft [-] turbine blades have also started to be processed, and the processed blades are all qualified, Mr. Wang should be very relaxed.

He actually sighed and shook his head.

Lin Feng was puzzled, and after glancing at Jiang Haitao, our director Jiang could only shake his head, and he also didn't understand why.

Wang Tianfang gave the answer himself.

He sighed softly again, "Xuewen, you said that if the French had agreed to give us the design drawings of tooling and various knives, wouldn't things like this happen today?"

Zheng Xuewen was silent, this topic is a bit heavy!

The entire set of technology of Turboshaft [-] was imported from France. During the initial negotiation, they promised to provide a complete set of technical drawings. As a result, they only gave the basic design drawings and basic process regulations.

Why is it a basic process specification, not a complete set of process specifications?

Very simple.

The process specifications they gave are only the mechanical processing process specifications, which do not include the tool design drawings, fixture design drawings, etc. required for each process.

These things can only be designed by Phoenix Factory itself, and various problems will inevitably arise. After all, there is a technological gap between the two parties.

Zheng Xuewen actually sighed slightly.

"Yeah, we spent a lot of money, but people still have reservations about technology, and some things just won't be given to us."

Wang Tianfang said, "We need to work hard and strive to catch up in 20 or even 30 years, otherwise, it's really uncomfortable to be controlled by others."

Zheng Xuewen nodded, he fully agreed with this.

Lin Feng followed the two for a long distance, and they left at a fork in the road. He went to workshop 406, while Wang Tianfang and Zheng Xuewen went to the factory building.

After listening a lot along the way, Lin Feng's mood became a little heavy.

Yes!

Compared with the aviation industry powerhouses such as Europe and the United States, our level is at least 30 years behind, and we must catch up.

For example, countries such as Europe and the United States have long had their own high-power turboshaft engines, the power-to-weight ratio has broken through more than 10, and the power of a single engine can generally reach 1000 kilowatts, or even more than 1500 kilowatts.

What about us.

The turboshaft engine used as power for armed helicopters is still in its infancy. The turboshaft eight engine that was finally introduced has a single power of more than 400 kilowatts, and the power-to-weight ratio is only about 5.

Another example is the turbofan engine, the gap is even greater, not to mention the use of other people's turbofan engines in civilian airliners, but only in the military field.

The thrust-to-weight ratio is generally above 10, and the thrust is generally above 10 tons. For example, GE's F110 engine has a maximum thrust of 12268daN.
Lin Feng thought in his heart, we still have a long way to go!

The way back to workshop 406 was a bit dull. After walking for two to 300 meters, it was Lin Feng who broke the dullness.

"Director Jiang, the broaching machines in our factory are really backward. We don't even have a decent broaching machine."

Jiang Haitao felt the same way, "Yes, all of them were imported in the 70s and 50s, and there is also a broaching machine from the [-]s, which is still in use."

A worker must first sharpen his tools if he wants to do well.

Without good equipment, some parts rely solely on the skill level and experience of workers, which is still not enough.

Lin Feng asked, "Hasn't our factory considered importing one or two better broaching machines?"

Jiang Haitao revealed, "There is already a plan in this regard, and the funds for the second stage of the technical transformation of the turboshaft [-] have been put in place. According to Mr. Wang, the money is mainly used to purchase various processing equipment, including some imported equipment. .”

"In the list of imported equipment, in addition to CNC lathes, CNC machining centers, and even five-axis linkage machining centers, there is also a key piece of equipment, which is an imported CNC broaching machine."

Lin Feng became happy, "CNC broaching machine is good, this broaching machine should be placed in our workshop after buying it."

"Yes, after buying it, it is mainly used to process the tongue and groove of various turbine disks. The turbine disks of turboprop six, turboshaft eight and other engines can be processed on this broaching machine."

Lin Feng became happy.

Such a device is great!
From Jiang Haitao's mouth, it is known that this will be a CNC broaching machine with a large stroke, the maximum stroke can reach 7 meters. At present, basically all turbine discs can be broached in one stroke.

One-time broaching is completed, how cool!
Workshop 406 currently has two broaching machines, both of which are ordinary broaching machines, not CNC. Not only are the equipment old, but the maximum stroke is only three meters. It takes several times to complete broaching a part, and the processing efficiency is very low.

Back in workshop 406, sitting in his seat, Lin Feng was still thinking about the imported CNC broaching machine in his mind.

The CNC broaching machine with a maximum stroke of 7 meters, such equipment, is really delicious!
the next day.

Not long after Lin Feng started working, he saw a young craftsman walking in happily, and said with admiration, "Director Lin, you are amazing!"

Lin Feng seemed to guess what he was going to say, and smiled slightly.

The young craftsman didn't stop because of this, but continued loudly, "Even Chief Engineer Wang was alarmed by such a big incident in the blade workshop. I didn't expect you to solve it so quickly."

His voice was so loud that everyone in the technology room could hear him clearly. Without exception, everyone pricked up their ears.

A craftsman asked eagerly, "What's going on, Xiao Zhang, tell us quickly."

Xiao Zhang was elated, "A major incident happened in the blade workshop yesterday. The turbine blades of the turbo shaft eight had a batch of quality problems during the broaching process of the tenon. A total of more than a dozen blades had grooves on the tenon."

"Oh, that's French material leaves, it's very expensive." Someone exclaimed.

Xiao Zhang agreed, "That's right, Deputy Factory Director Wang and Deputy Factory Director Meng soon arrived at the blade workshop and scolded the leaders of their workshop bloody."

"After scolding people, the problems that arise still need to be resolved. Deputy Factory Manager Wang personally organized a quality accident analysis meeting. Everyone discussed the problem all morning and failed to find out the cause of the problem."

"Our Director Lin is amazing. Deputy Factory Director Wang personally ordered to participate in the quality accident analysis meeting that will continue in the afternoon. Our Director Lin"

He explained in detail what he had heard.

Suddenly, many people looked at Lin Feng.

incredible!
Our Director Lin! ! !

He actually accurately deduced where the problem was, and successfully verified it, in front of so many people, including deputy factory director Wang and other leaders.

This row is big.

It's so embarrassing!

Several envious eyes stopped on Lin Feng's body, and someone even quickly made up his mind, imagining the big scene yesterday, the more he thought about it, the more excited he became!
　Thank you "Apple Fighter" book friend for the 500 coins, thank you "Blood Hummer" book friend for the 500 coins reward, and thank you "Wenbai" book friend for the 100 coins reward.

　　Many thanks! ! !

　　
　
(End of this chapter)