Manufacturing method of neodymium iron boron based on three-dimensional (3D) printing technology

Abstract

The invention discloses a manufacturing method of neodymium iron boron based on a three-dimensional (3D) printing technology. Three-dimensional model modeling is conducted on a product through a computer, three-dimensional model modeling data are transmitted to a 3D printer, a plurality of continuous layered planar graphs are generated by utilizing the computer aided engineering (CAE) technology, a nozzle of the 3D printer is controlled to fill powder according to the planar graphs, and the powder is accumulated layer by layer and is magnetized until the product is formed. A large amount of mold development cost is saved, production phase is shortened, and production efficiency is improved greatly. The size of the manufactured product can be changed arbitrarily, the method is suitable for heterotypic products which are large in machining difficulty, the thickness of the product can be smaller than 1mm, the product can be assembled and used conveniently by a client, and the requirements that a micro motor develops towards the directions of being small in size, ultrathin, high in speed, high in precision and low in noise are satisfied.

Description

technical field [0001] The invention relates to a preparation method of neodymium iron boron based on 3D printing technology. Background technique [0002] As one of the most important application fields of rare earth materials, NdFeB materials are one of the important basic materials supporting the modern electronic information industry and are closely related to people's lives. With the popularization of communication equipment such as computers, mobile phones, and automotive circuits and the rapid development of energy-saving vehicles, rare earth permanent magnet materials have become important materials in electronic technology communications. They are used in traveling wave tubes and circulators in satellites, radars, etc. In and on micro-motors, micro-recorders, aviation instruments, electronic watches, seismographs and other electronic instruments. At present, the application of rare earth permanent magnets has penetrated into automobiles, household appliances, elect...

AI Technical Summary

Problems solved by technology

[0003] The traditional process of preparing NdFeB mostly adopts molding processes such as molding, injection, and extrusion. The molding processes such as molding, injection, and extrusion require a large number of molds of different specifications, which will consume a lot of cost and occupy space, and later. Maintenance and repairs also require a lot of manpower, coupled with the design and production of molds will take a long period, which will delay the delivery date or lead to timely delivery

In addition, the size of the blank produced by the traditional process cannot be accurate, and it needs to be machined later, which is not conducive to the change of the magnet specification, and the processing cost is high. At the same time, the ultra-thin thickness (less than 1 mm) magnet is produced very difficult to process

Images