A thixomolding material includes: a metal body containing magnesium(Mg) as a primary component; a plurality of coating particles provided at a front surface of the metal body and having an average particle diameter equal to or less than 100 μm, the plurality of coating particles being made of an inorganic material differing from the metal body; and an interposed particle interposed between the metal body and the coating particles and having an average particle diameter smaller than the coating particle, the interposed particle being made of an inorganic oxide.

The present invention relates to a method for producing an abrasion-resistant coating on surface of a 3D printed titanium alloy component, which belongs to the field of surface modification. The method comprises using spherical TC4 titanium alloy powder as a base material and adopting selective laser melting (SLM) technology to manufacture a 3D printed titanium alloy component in a layer-by-layer stacking manner, using graphene oxide to perform friction-induction treatment, and making the graphene oxide infiltrate into the surface of the TC4 titanium alloy component to obtain a graphene oxide surface coating. The goal of improving the friction and wear performance of the TC4 titanium alloy printed components is achieved. The preparation method is simple, and the steps are easy to operate. Introducing the graphene oxide is beneficial to reduce the generation of wear debris during the friction and wear processes and improve tribological characteristics of the base material.

The present invention relates to a method for producing an abrasion-resistant coating on surface of a 3D printed titanium alloy component, which belongs to the field of surface modification. The method comprises using spherical TC4 titanium alloy powder as a base material and adopting selective laser melting (SLM) technology to manufacture a 3D printed titanium alloy component in a layer-by-layer stacking manner, using graphene oxide to perform friction-induction treatment, and making the graphene oxide infiltrate into the surface of the TC4 titanium alloy component to obtain a graphene oxide surface coating. The goal of improving the friction and wear performance of the TC4 titanium alloy printed components is achieved. The preparation method is simple, and the steps are easy to operate. Introducing the graphene oxide is beneficial to reduce the generation of wear debris during the friction and wear processes and improve tribological characteristics of the base material.

The present invention relates to a device for forming bimetal composite pipe by spinning semisolid metal powder on outer wall of steel pipe, which comprises feeding device, clamping device, spinning roller, hot melting head, motor, lifting device, work table, buffer bearing pack, tailstock support device and heat preservation device. According to the invention, three spinning rollers are adopted, so that spinning efficiency is increased, uniform stress is ensured, and the semisolid powder is uniformly spun on the outer wall of the metal pipe; the spinning roller adopts a taper design, so that forming resistance of the spinning device in the axial moving process can be effectively reduced, and the semisolid powder is uniformly covered on the outer wall of the steel pipe; the lifting device is added, so that the lifting device can be adjusted according to different pipe diameters to process different metal pipes; spring is additionally arranged at the bottom of the first bearing seat to avoid and reduce rigid impact between the steel pipe and the spinning rollers in the spinning process and ensure uniform surface appearance and structure of a spinning layer; in addition, the device is driven by a motor, and a screw rod is used for driving the frame to axially translate at a constant speed.

The present invention relates to a device for forming bimetal composite pipe by spinning semisolid metal powder on outer wall of steel pipe, which comprises feeding device, clamping device, spinning roller, hot melting head, motor, lifting device, work table, buffer bearing pack, tailstock support device and heat preservation device. According to the invention, three spinning rollers are adopted, so that spinning efficiency is increased, uniform stress is ensured, and the semisolid powder is uniformly spun on the outer wall of the metal pipe; the spinning roller adopts a taper design, so that forming resistance of the spinning device in the axial moving process can be effectively reduced, and the semisolid powder is uniformly covered on the outer wall of the steel pipe; the lifting device is added, so that the lifting device can be adjusted according to different pipe diameters to process different metal pipes; spring is additionally arranged at the bottom of the first bearing seat to avoid and reduce rigid impact between the steel pipe and the spinning rollers in the spinning process and ensure uniform surface appearance and structure of a spinning layer; in addition, the device is driven by a motor, and a screw rod is used for driving the frame to axially translate at a constant speed.

Techniques of additive deposition for producing articles of manufacture are disclosed herein. In one embodiment, an article of manufacture can include a substrate having a surface and composed of a metal or metal alloy and multiple layers of composite materials deposited on the surface of the substrate. The composite materials is composed of the metal or metal alloy and a ceramic material. The individual composite materials at each of the multiple layers has a composition with a corresponding ratio between the metal or metal alloy material and the ceramic material. The ratios between the metal or metal alloy material and the ceramic material change along at least one dimension of the article of manufacture.

Techniques of additive deposition for producing articles of manufacture are disclosed herein. In one embodiment, an article of manufacture can include a substrate having a surface and composed of a metal or metal alloy and multiple layers of composite materials deposited on the surface of the substrate. The composite materials is composed of the metal or metal alloy and a ceramic material. The individual composite materials at each of the multiple layers has a composition with a corresponding ratio between the metal or metal alloy material and the ceramic material. The ratios between the metal or metal alloy material and the ceramic material change along at least one dimension of the article of manufacture.

In a method of manufacturing open-cell bodies, individual parts of an open pore plastic in a size which corresponds to the size of the bodies to be manufactured while taking account of the shrinkage on a sintering or an open pore plastic element having predetermined break points which take account of the size and geometrical design of bodies to be manufactured are/is in filtrated and coated with a suspension in which at least one powdery material is contained. Organic components are expelled after a first heat treatment. Subsequently, a sintering is carried out. Parts of porous plastic provided with the suspension are separated before the first heat treatment or wherein, afterwards the open-cell element which is obtained from the plastic element from the material with which the bodies are formed is cut by forces and thereby separated bodies can be obtained.

In a method of manufacturing open-cell bodies, individual parts of an open pore plastic in a size which corresponds to the size of the bodies to be manufactured while taking account of the shrinkage on a sintering or an open pore plastic element having predetermined break points which take account of the size and geometrical design of bodies to be manufactured are/is in filtrated and coated with a suspension in which at least one powdery material is contained. Organic components are expelled after a first heat treatment. Subsequently, a sintering is carried out. Parts of porous plastic provided with the suspension are separated before the first heat treatment or wherein, afterwards the open-cell element which is obtained from the plastic element from the material with which the bodies are formed is cut by forces and thereby separated bodies can be obtained.

A green compact according to the present invention is a green compact, which is obtained by compaction-molding raw material powder containing metal powder as a main raw material, the green compact including an oxide film formed between particles of the raw material powder forming the green compact, the oxide film binding the particles of the raw material powder to each other, in which the metal powder to toe used includes metal powder showing a circularity R at a cumulative frequency of 80% of 0.75 or more, the circularity R being expressed by Equation (1), where S represents a two-dimensional projected area of the metal powder and L represents a two-dimensional projected circumferential length of the metal powder.

[00001]$\begin{array}{cc}R=4.Math.\pi \times \frac{S}{L^2}& \left(1\right)\end{array}$