The titanium alloy compressor receiver of this turbofan engine is a complex thin-walled titanium alloy overall receiver, which is extremely technically difficult. No wonder Li Tianfeng attaches so much importance to it. ≤

The precision casting technology of advanced aircraft engine titanium alloy receivers has always been a difficult bone to crack. It is not a simple product, with extremely high requirements and great difficulty, so Li Tianfeng specially reminded.

Titanium has extremely high chemical activity at high temperatures, and quality control is extremely difficult during the liquid metal forming process. Titanium alloy precision casting is a high-tech product that integrates metal materials science, chemical ceramics science, vacuum metallurgy, high-precision processing and testing technology, high-resolution non-destructive testing technology, computer-aided design and manufacturing technology, and numerical simulation and simulation technology.

Currently, only a few countries in the world have mastered this technology. The precision casting technology of special-shaped thin-walled titanium alloys represents the high difficulty and level of precision casting technology of titanium alloys.

The casting of this titanium alloy compressor receiver belongs to the special-shaped thin-wall titanium alloy precision casting technology.

Among the titanium alloy precision casting technology, numerical simulation technology is particularly important. undoubtedly, Tianfeng Technology Company has done a good job in this regard.

The precision casting of titanium alloy receivers of the turboshaft d and turboshaft e engines uses numerical simulation and simulation technology. For Tianfeng Technology, this technology is relatively mature.

Realize digital simulation of the entire process of research and development and manufacturing of titanium alloy castings. Replacing multiple rounds of iterative trial production through computer digital simulation can greatly shorten the R&D cycle, reduce material consumption, reduce R&D costs, and improve product quality and reliability.

As the leader of the process technology of Tianfeng Technology Company and chief craftsman, Zeng Qinghai nodded and said: "Boss, we have conducted numerical simulations and simulations for this titanium alloy receiver several times. There should be no major problems."

In Li Tianfeng's opinion, there is no major problem with the casting process regulations prepared by the casting workshop, so Li Tianfeng waved his hand and said, "Yes, then we will start to precision casting of the titanium alloy receiver. If there are any problems in the casting process, we will optimize and improve the casting process based on the actual situation."

Zeng Qinghai nodded and said, "Boss is to carry out the first batch of castings."

Li Tianfeng said: "That's it."

The specific casting matters are not required to be arranged by Li Tianfeng himself. The casting workshop will arrange them by itself, and there are special casting technology technicians in charge to follow up.

After deciding to start the first batch of fine casting, I saw that it was still early. I was going to go to the metallographic analysis room in the afternoon, but now Li Tianfeng decided to check the metallographic inspection of the fan blades.

So, Li Tianfeng said: "Qinghai, go to the metallographic analysis room with me."

Zeng Qinghai nodded and said, "Boss, at this time, our fan blade metallographic inspection should have results, but I don't know whether the result is good or bad."

Li Tianfeng also said: "This is our first batch of fan blades, and it is also the first time that super-plastic molding and connection technology can be used. Whether it can meet our requirements is really hard to say."

While talking, the two left the casting workshop and walked towards the metallographic analysis room located in the center of materials engineering.

This is a large, high-standard analysis room, which is similar to a modern large laboratory, with many advanced instruments and equipment, and is also a dust-free analysis room.

At the door, the two of them changed into clean cotton slippers, clean white coats, and walked into the analysis room. The analysis room was always constant temperature and humidity all year round. During the entry, they felt very comfortable. However, Li Tianfeng is not paying attention to these now, and Li Tianfeng is concerned about the situation of fan blades.

Seeing Li Tianfeng and Zeng Qinghai coming in, Director Yang of the Metallurgical Analysis Office immediately came over and said with a serious expression: "Mr. Li, Mr. Zeng, the inspection results have just come out. The situation is not very good, and there are some small flaws."

After receiving the inspection report, Li Tianfeng hurriedly looked at it, "Mr. Zeng, there is still no problem with the metallographic structure of the fan blades. The material performance is qualified. The key is that when the two halves of the blades are welded together, there are certain small defects in the welding bonding surface."

Zeng Qinghai took the report and read it carefully. The report not only contains data, but also several high-power microscopic pictures of defective parts. The metallographic structure of the defect and welding surfaces on the picture are clear.

The magnification of the picture can also be seen from 500 times, 1000 times, 2000 times to 5000 times, metallographic structure, metal grain conditions, etc., and the defect conditions can naturally be seen clearly.

Zeng Qinghaidao: "Boss, the welding bonding surface is not perfect and has some defects."

Li Tianfeng nodded and said, "Fortunately, the defect is not serious, which shows that our process method is very correct, but the process parameters are a little unreasonable."

Zeng Qinghai also agreed with this point. There is definitely no problem with the process method. There are some small flaws in the process parameters and need to be improved. Then, according to the improved and improved process parameters, try to make a few fan blades.

After all, the molding and connection process of fan blades is a very cutting-edge process technology. Such advanced process technology rarely succeeds at one time, and Li Tianfeng has long been prepared for unsuccessfulness.

Fortunately, the defect is not serious and it is a flaw.

…………

Helicopter manufacturing plant.

In such a large assembly workshop, Wuzhishi is undergoing assembly one by one, and the scene is spectacular. With Wuzhishi's outstanding performance, the military also urgently needs this excellent helicopter. The helicopter manufacturer has made full efforts to produce it with all efforts.

With excellent armed helicopters, the new military transport helicopter project has also accelerated its progress. With the platform of the straight-nine transport helicopter, combined with the experience of advanced foreign transport helicopters, the progress of this transport helicopter is relatively fast.

Not only has the design been completed and the design model certificate has been obtained, the first prototype has been undergoing series verification and test flights, and in the assembly workshop, two transport helicopters are being assembled.

Li Tianfeng was invited to Dao Helicopter Manufacturing Factory. The power of this new transportation helicopter is two turboshaft e engines developed by Tianfeng Technology.

Li Tianfeng walked to the transport helicopter, looked at it, and said to the deputy general manager of the helicopter manufacturer who accompanied him, "Mr. Yu, the helicopter is good."

Mr. Yu said: "The main reason is that the design is good. I heard that Mr. Li also participated in the design of this helicopter. Is it true?"

Li Tianfeng smiled: "No, I just put forward some suggestions on the design, and was fortunately adopted by the helicopter design institute."

Mr. Yu said: "Mr. Li, you are too modest. Our Wuzhi Ten was improved and upgraded according to the plan you proposed. Now Wuzhi Ten is simply a complete transformation, with its performance leaps exponentially, and it has become one of the world's most advanced armed helicopters in one fell swoop."

Li Tianfeng looked at the row of Wu Zhishi in the distance with satisfaction, and nodded. In Li Tianfeng's opinion, Wu Zhishi was really good, and he was very satisfied with his original upgrade and improvement plan.

Li Tianfeng said: "Transport helicopters do not have complex fire control systems and weapons systems, which is relatively simple. Even if we don't mention that little opinion, our comrades in the design institute will definitely be able to complete the design work well."

Mr. Yu said: "Mr. Li, you are so modest. The design difficulty of transport helicopters is relatively less, which is certain, but the premise is that they must have excellent power. Your turboshaft e engine has excellent performance and strong power. Otherwise, how could such a good transport helicopter be designed?"

In Li Tianfeng's view, this new military transport helicopter is a medium-sized transport helicopter, with good performance and design. It is definitely the most advanced in China and can barely be among the first-class military transport helicopters internationally.

If Li Tianfeng was in charge of the design, the design would definitely be better. However, the design work was completed by the helicopter design institute, and Li Tianfeng could only give some suggestions. Fortunately, General Manager Wu and Li Tianfeng had a good relationship in the design institute, and Li Tianfeng's opinions were basically adopted in the design.

The assembly of a transport helicopter is basically almost completed. Vice President Yu invited: "Mr. Li, board the plane and take a look."

Li Tianfeng also became interested, got on the helicopter, looked at the transportation cabin first, then entered the cockpit, and sat in the driving position with great enthusiasm.

This transport helicopter has a parallel positioning of the passenger seat and the co-pilot position, unlike the layout of the front and rear of the Wuzhi Ten. The cockpit of the transport helicopter is well designed, relatively spacious, and has good operability.

"Mr. Li, I heard that your turboshaft e engine has been exported. Brazil Amazon Aviation Industry Corporation has ordered hundreds of units from you. You are amazing."

Li Tianfeng smiled happily: "Mr. Yu, you know everything about this."

Deputy General Manager Yu said: "This matter has been circulated as a beautiful story in the industry. Many people in the aviation industry have worked hard for a lifetime but have not done it. Mr. Li, you have done it. I really admire you."

Upon hearing this, Li Tianfeng was very happy and knew that he had indeed done something that was very proud of. The domestic aero engine industry is quite different from that of first-class countries. Not to mention the large export of aero engines, we also import a lot of aero engines from abroad every year.

In recent years, whenever a new domestic aircraft flew for the first time, netizens are most concerned about the performance of the aircraft, but whether this aircraft uses a domestic engine. At present, the answer is often disappointing.

Domestic aviation engines are not good, this is everyone's consistent view, and Tianfeng Technology Company has emerged and is eye-catching.

Exported 800 turboshaft e engines, it is awesome! It is awesome!

…………

Today’s two updates, let’s talk about the words after the code, and the first update will be given!
Chapter completed!