NBHP Laser Technology Corporation is mainly engaged in R&D and production of high-performance 3D printing engineering tools.
Its innovative application of laser 3D printing technology in the production process of engineering tools realizes the integration of product structure and function.
This solution realizes the macro fusion and micro bonding of metals and ceramics by laser implanting ceramic matrix composites in a low-cost steel matrix, taking into account the customer's requirements for toughness and wear resistance, and the comprehensive performance is 10 higher than that of traditional knives. times more.
The 3D printing technology of cermet composites has always been a difficult problem in the industrial field. Printing cermet composites is very difficult because ceramics are not inherently suitable for printing. At present, the content of ceramics that can be printed in the industry is usually less than 10%, and it is very difficult to go further, which is a world-class technical problem. This is where the technological breakthrough of NBHP lies. The ceramic content of the 3D printing part of the products it has successfully mass-produced far exceeds the industry level.
Traditional knives directly weld the wear-resistant layer (mainly ceramic material) and the impact-resistant layer (mainly metal material), while NBHP products directly implant ceramics into metal through 3D printing, and print a gradual gradient The combination of materials, metals and ceramics does not have a well-defined interface. "The bonding strength of the previous surfacing technology is relatively low. The laser implantation technology implants ceramics into the metal, which can be combined better in both microscopic and macroscopic aspects. This is an important reason why the product can perform well in the market. "
The internal microstructure of engineering knives: the perfect combination of cheap steel and ceramics
In fact, "wear resistance" is the first pursuit of customers for products in engineering scenarios. Taking the market of engineering tools (also known as "engineering teeth"), the most important consumables used in subway tunnel excavation, infrastructure construction, coal mining and other industries, as an example, China's annual consumption is as high as tens of billions of yuan. The high-end market of this consumable has always been firmly occupied by European and American giant companies such as Sandvik and Kennametal, because these scenarios have strong requirements on the performance of consumables, and the short service life and frequent replacement will restrict the performance of construction machinery and equipment. Construction efficiency, so the low price strategy is not bought by the market. Moreover, frequent tool replacement will also increase the overall cost of customers. This product feature increases the difficulty of domestic replacement of engineering tools.
Cermet-based 3D printing tools are relatively wear-resistant, which also solves the problem of large wear of engineering tools. At the same time, it has the characteristics of toughness, impact resistance and low cost. It is the iterative direction of current engineering tool products.
In addition, NBHP's products are relatively controllable in cost compared to traditional tools. The performance of traditional knives is mainly improved by using more expensive raw materials, so it is often impossible to balance cost and performance. Although a part of the cost is increased in the 3D printing process, only ordinary steel can be used to produce high-performance products. By reducing The dependence on the performance of the raw material itself balances the cost of 3D printing, so that the product has the advantages of high performance, high efficiency, and low cost.
Since 2019, the sales of the series of cutting tools developed by NBHP has doubled every year, and has successively formed strategic cooperation with well-known central enterprises such as China National Energy Group, China Communications Construction Group, and China Railway Construction Group, and has won bids as the only domestic brand for many times. China's key projects under construction have broken the monopoly of traditional tool giants such as the United States and Germany in some markets. It can be said that it has completed the course of more than ten years of peers in just a few years.
In terms of R&D team, the R&D team of NBHP is composed of a doctoral team with both scientific research and industrialization experience represented by Dr. Liu Dejian, including Harbin Institute of Technology, Huazhong University of Science and Technology, Ohio State University, Lockheed Martin, etc. Professional background from well-known universities and institutions at home and abroad.
CTO Liu Dejian has been engaged in the laser 3D printing industry for more than 20 years, and has successively presided over a number of major national defense projects. As early as 2005, he took the lead in the research of Laser Melt Injection technology, which solved the industry's many years of controversy on the control theory of metal-ceramic interface, and overcome the atomic bonding problem of metal-ceramic at the micro-scale, and The fusion problem at the macro level, and successfully industrialized the technology for the first time in the world.