The present disclosure provides a stent comprising: a hollow tubular body portion; a hooking portion connected to one end of the body portion; and a hooked portion connected to the other end of the body portion, wherein the hooking portion is hooked on the hooked portion. According to the present disclosure, the stent may be manufactured by 4D printing method. Accordingly, the stent may be manufactured in an automated process at low cost, expeditiousness, simplicity, and no manufacturing site constraints.

The present disclosure provides a stent comprising: a hollow tubular body portion; a hooking portion connected to one end of the body portion; and a hooked portion connected to the other end of the body portion, wherein the hooking portion is hooked on the hooked portion. According to the present disclosure, the stent may be manufactured by 4D printing method. Accordingly, the stent may be manufactured in an automated process at low cost, expeditiousness, simplicity, and no manufacturing site constraints.

Systems and methods of support structures in powder-bed fusion (PBF) are provided. Support structures can be formed of bound powder, which can be, for example, compacted powder, compacted and sintered powder, powder with a binding agent applied, etc. Support structures can be formed of non-powder support material, such as a foam. Support structures can be formed to include inductive components that can be used to facilitate removal of the support structures in the presence of an external magnetic field. Additionally, support structures can be formed to break when a fluid, such as air or water, creates a force and/or pressure at a connection point interface.

The present disclosure generally relates to methods and apparatuses for laser shock peening during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed microstructural and/or physical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.

The present disclosure generally relates to methods and apparatuses for laser shock peening during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed microstructural and/or physical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.

A method for manufacturing a cooling device includes the steps of providing a material and forming a cooling structure from the material, wherein a sintering powder is used as the material from which a green body is manufactured by pressing, which is sintered into a preform, and the cooling structure in the form of cooling elements is manufactured from the preform by deformation, whereby a part of the preform is pressed through the mold.

Systems and methods of support structures in powder-bed fusion (PBF) are provided. Support structures can be formed of bound powder, which can be, for example, compacted powder, compacted and sintered powder, powder with a binding agent applied, etc. Support structures can be formed of non-powder support material, such as a foam. Support structures can be formed to include resonant structures that can be removed by applying a resonance frequency. Support structures can be formed to include structures configured to melt when electrical current is applied for easy removal.

Systems and methods of support structures in powder-bed fusion (PBF) are provided. Support structures can be formed of bound powder, which can be, for example, compacted powder, compacted and sintered powder, powder with a binding agent applied, etc. Support structures can be formed of non-powder support material, such as a foam. Support structures can be formed to include inductive components that can be used to facilitate removal of the support structures in the presence of an external magnetic field. Additionally, support structures can be formed to break when a fluid, such as air or water, creates a force and/or pressure at a connection point interface.

Provided is a heretofore non-existing, novel rare-earth sintered magnet having both of an extremely low carbon content and an extremely small average particle size of magnet material particles. The sintered body for forming a rare-earth magnet comprises a large number of magnet material particles sintered together, wherein each of the magnet material particles contains a rare-earth substance and has an easy magnetization axis. This sintered body for forming a rare-earth magnet has a carbon content of 500 ppm or less, and the magnet material particles have an average particle size of 2 m or less.

Provided is a heretofore non-existing, novel rare-earth sintered magnet having both of an extremely low carbon content and an extremely small average particle size of magnet material particles. The sintered body for forming a rare-earth magnet comprises a large number of magnet material particles sintered together, wherein each of the magnet material particles contains a rare-earth substance and has an easy magnetization axis. This sintered body for forming a rare-earth magnet has a carbon content of 500 ppm or less, and the magnet material particles have an average particle size of 2 m or less.