During this time, Shen Huan was not idle.
After all, he is now the assistant director of the Technology Innovation Center of the Engineering Research Institute of China Shipbuilding Industry Group and the assistant to the president of the Jiangnan Changxing Research Institute.
After careful consideration and preparation, Shen Huan formally put forward a proposal to the Engineering Research Institute to develop a forward-looking research topic of additive manufacturing technology in the shipbuilding industry.
After receiving Shen Huan's suggestion, the leaders of the Engineering Research Institute of China Shipbuilding Industry Group attached great importance to it, especially the vice president Yin Tengyue was also the director of the technology innovation center, for Shen Huan's suggestion, he was very appreciative, after all, the purpose of the establishment of the technology innovation center is to break through the routine in some key areas and fill the gap in the technology of the shipbuilding industry.
Additive manufacturing technology, also known as 3D printing technology, is a manufacturing technology first developed in the late eighties in the United States, which is characterized by changing the traditional manufacturing method, and is a manufacturing method from scratch through the way of stacking layers of materials.
As early as 1997, Xi'an Jiaotong University was the first to successfully develop the first light-curing rapid prototyping machine in China, and established a rapid prototyping engineering research center in 200.
Of course, the research of 3D printing technology in the field of aviation industry is still in the experimental stage, and it has not yet been truly applied to engineering practice.
Not many people in the marine industry have paid attention to this revolutionary technology.
Therefore, as soon as Shen Huan submitted this suggestion, the leaders of the Engineering Research Institute also attached great importance to it, after all, Shen Huan, a young talent with an innovative spirit, successfully promoted the application of pulsating production line technology, and they also had greater expectations for Shen Huan.
Now, this expectation has finally ushered in a new technology: additive manufacturing.
Dean Huang Zhihua and Vice Dean Yin Tengyue called Shen Huan to the dean's office.
As soon as Shen Huan entered, he saw that the two deans were talking about additive manufacturing, and he hurriedly said, "Dean Huang, Vice Dean Yin!"
” Huang Zhihua and Yin Tengyue both stood up, both with smiles on their faces.
Huang Zhihua smiled and said, "Assistant Shen, come, sit down and talk!"
” Yin Tengyue said with a smile: "Assistant Shen, the suggestion you submitted is very good, just now I discussed with Dean Huang, if our shipbuilding industry really uses additive manufacturing technology, it is really very valuable!"
At present, this manufacturing technology is still in its infancy in China, and it is still a blank in the field of our shipbuilding industry, and the purpose of our technology innovation center is to break through some key innovative technologies, so this suggestion is really good, and I want to discuss it in detail when I come to you this time!
” Of course, Shen Huan is still sure to dare to make this bold suggestion, because as a reborn person, he still remembers that a year before his rebirth, the 12 national departments jointly issued the "Additive Manufacturing Industry Development Action Plan 2017-2020", which listed aviation, aerospace, and ships as key areas to achieve the large-scale application of additive manufacturing technology.
With the progress of additive manufacturing technology, vigorously developing additive manufacturing in the field of shipbuilding will play a positive role in promoting the intelligent manufacturing of China's shipbuilding industry and the improvement of production efficiency and level.
Huang Zhihua said solemnly: "Comrade Shen Huan, it seems that if we want to apply additive manufacturing technology in the field of shipbuilding industry, the difficulties we face are also very great. ” Shen Huan thought for a while and said: "Indeed, now our domestic additive manufacturing technology has just started, and the application is still very small, especially to obtain large-scale application in our shipbuilding industry, it can be said that it is difficult and premature."
It is precisely for this reason that we have to carry out forward-looking technical research, and at present the field of aviation industry has taken the lead in this field of technical research, and we must not lag too far behind.
I believe that parts made by additive technology will be used more and more in important industrial fields such as aerospace, automobile manufacturing, and shipbuilding. ” Seeing that the two deans nodded frequently, Shen Huan continued: "Additive manufacturing, what is done is addition, using digital technology, through the superposition of materials, just like the growth of animals and plants, from scratch, from small to large.
At present, it seems that there are several difficulties in applying this technology in the field of shipbuilding.
First of all, in terms of size, the size of the ship structure is large, and the use of this technology will outweigh the losses; The second is that the material is the most expensive, and the metal powder used for additive manufacturing will be very expensive due to the current situation; The third is the advantage of timeliness, additive manufacturing technology is more suitable for manufacturing components with small size, simple structure and small batch, so it seems that it is impossible to apply it on a large scale in the field of shipbuilding industry.
However, I think that we can start with technical research, and take the ship power system as a breakthrough, and in the field of power system parts, we can gradually realize 3D printing.
In addition, we can try to develop our additive manufacturing technology for parts repair in the field of ship repair. ” Shen Huan still remembers that not long before his rebirth, Rawls?
Royce has applied additive manufacturing technology to the fuel injection system of marine diesel engines.
The Port of Rotterdam Additive Manufacturing Center used hybrid additive manufacturing technology to produce the world's first classification society-certified marine propeller.
Huang Zhihua nodded and said: "Yes, yes, that's true, we have to find a breakthrough point first, the ship power system is indeed a relatively easy to achieve, and the repair of parts is also feasible."
So what process should be used, this aspect is worth serious discussion. ” Shen Huan said: "First of all, we need to study the production technology of powder materials for additive manufacturing, and then the molding process of metal laser sintering and electron beam sintering, including the equipment of additive manufacturing, we must also conduct research, only by breaking through these technologies, it is possible to achieve our goals."
I think we can cooperate with relevant universities in China, such as Xi'an Jiaotong University, Beihang University, etc., they already have some research results in this field. ” Yin Tengyue thought for a while and said: "I think it should still be feasible to achieve additive manufacturing in our marine gas turbine casing parts, as well as centrifugal compressor impellers for turbochargers, etc., this kind of parts are very promising." ” Huang Zhihua nodded and said: "Yes, with the development of our ship power technology, there will be more and more applications to titanium alloys, high-strength aluminum alloys and other high-strength alloys, the structure is becoming more and more complex, the future will put forward higher requirements for the manufacturing process, we all know that the hot processing and machining of high-strength alloys are very difficult, if the breakthrough of additive manufacturing technology in these fields, then the future additive manufacturing technology will indeed become the core competitiveness of our shipbuilding industry!"
Therefore, I am very much in favor of the development of this technology, and then we will go to the team meeting, and after full democratic discussion, we will carry out research work in this area. ”