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Among metals, aluminum alloys are light and strong, so they are used in considerable quantities as parts of various industries. At this time, there is a company which successfully achieved to get mobile phone frame molding experiments by melting materials for which super ultra duralumin (A7075), which has the highest strength of an aluminum alloy. was used as a material, after creating a high vacuum environment(0.007torr), and then, rapid composite forging. The company is called NTT Co.,Ltd. located in Gangseo-gu, Busan, South Korea.

Among metals, aluminum alloys are light and strong, so they are used in considerable quantities as parts of various industries. At this time, there is a company which successfully achieved to get mobile phone frame molding experiments by melting materials for which super ultra duralumin (A7075), which has the highest strength of an aluminum alloy. was used as a material, after creating a high vacuum environment(0.007torr), and then, rapid composite forging. The company is called NTT Co.,Ltd. located in Gangseo-gu, Busan, South Korea.

Currently, the company is making every efforts to manufacture commercialized machines to produce aluminum wheels and brake calipers for cars by further developed metal molding technology.

Production of products using super-ultra duralumin alloy is usually made by cutting the materials into appropriate chunks and cutting them into CNC machines, so a lot of materials are wasted and it takes a considerable amount of machine cutting time and consequently product is sold at a very high price.

However, NTT’s patented technology is a high-level molding device and method that goes beyond common sense, and is a high vacuum melting composite forging technology that can produce high quality products with eco-friendly minimum defect rate at a relatively low price.

The high vacuum melting composite forging technology of patented technology of NTT Co.,Ltd. is a high level metal molding technology that combines the existing high vacuum mold technology, high vacuum melting technology and the metal composite forging technology that was patented in Korea last month.

In addition, the domestic patented technology includes forging technology that was utilized by putting pressurizing blocks, which significantly lowers the height of the machine, thereby reducing the manufacturing cost of the forging machine and reducing the production cost of the molded products, as the forging process is reduced.

At one time, there was an exchange of opinions with representatives of the three domestic leading companies to cooperate with domestic conglomerates due to the large scale of the patented technology of NTT Co., Ltd., but it was eventually canceled due to their different opinions. And, Foxconn of Taiwan, Apple's outsourcing company, expressed its intention to purchase NTT technology while searching for a large overseas company, but canceled due to disagreement.

The marketability of patented technology of NTT Co.,Ltd. is in manufacturing and supplying various parts to each industry,

such as automobiles, space/aircraft,

ship-building equipment, electricity/electronics, military supplies, sports/leisure products, industrial goods, and medical equipment.

by realizing the high vacuum melting composite forging technology, it has a comparative advantage in quality and selling price over other products, satisfies the needs of the market, creates high value-added and achieves sustainable growth.

The business scope of NTT technology can be classified into the following five types:

1. Manufacture/sales of high-vacuum melting composite forging

machine

2. Research and development of metal alloy raw materials and

production and sales

3. By using high-vacuum melting composite forging machine,

production and sale of metal molding products

4. Development and sales for high-vacuum melting

composite forging machine

5. Developing parts and sales in each field of industries.

There are three cases below that are registered as individual patents of NTT Co.,Ltd, but the three are combined to become one technology. This is a high-quality result owing to a long and persistent investment for R&D.

1. Patent for registration (Korea 10-1483717) : A MOLD DEVICE OF FORMING A METAL UNDER VACUUM ENVIRONMENT

- We are currently managing patent registration in 20 countries.

2. Patent for registration (Korea 10-1517571) : A DEVICE AND A METHOD OF MELTING AND FORMING UNDER VACUUM ENVIRONMENT

- We are currently managing patent registration in 20 countries.

3. Patent for registration (Korea 10-2135823) : DEVICE AND METHOD FOR FORMING METAL

- Patent registration date: July 14, 2020

PCT Patent Application Number: PCT/KR2020/014813

Application date: October 28, 2020

이기연 기자 lolo0066@kns.tv

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