Abstract

Materials and methods for 3D printing and moulds printed according to the methods. The materials can include glass in the binder. The materials can also include particulate build material. In some examples, a mould is printed using the glass binder and build material. In some examples, the glass of the binder and the build material are selected to have a common element therein. In some examples, the glass of the binder is modified to increase its melting point. The glass of the binder can be of a glass-ceramic precursor, which forms a glass- ceramic. The glass of the build material can be modified using a softening point modifier, which can be a glass network modifier, a glass with a higher melting point, or a promoter of crystal formation in the glass.

IPC Classes  ?

• C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
• B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
• B22C 9/06 - Permanent moulds for shaped castings
• B28B 1/00 - Producing shaped articles from the material
• B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
• C03C 8/14 - Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill additions
• C04B 35/565 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide

Abstract

A casting mould comprising: an inorganic or refractory mould, wherein the mould is configured to receive feedstock; wherein the feedstock is configured to be heated in situ. A reusable mould, reusable susceptor, and/or release agent may be incorporated.

IPC Classes  ?

• B22C 9/06 - Permanent moulds for shaped castings
• B22D 23/06 - Melting-down metal, e.g. metal particles, in the mould
• B33Y 80/00 - Products made by additive manufacturing

Abstract

A 3D printer having a build surface, a first spreader for spreading a build material on the build surface, and a pivot mechanism. The pivot mechanism is coupled to the spreader to allow the spreader to pivotally move between a spreading disposition for spreading the build material on the build surface and a non-5 spreading disposition for not spreading the build material on the build surface. The 3D printer also has a print head, reservoirs for supplying material to the build surface, binder-setting devices, drive mechanisms for moving build and reservoir platforms, and a cleaning assembly including a cleaning bath.

IPC Classes  ?

• B29C 64/10 - Processes of additive manufacturing
• B22F 12/63 - Rollers
• B22F 12/45 - Two or more
• B22F 12/47 - Radiation means with translatory movement parallel to the deposition plane

Abstract

A casting mould comprising: an inorganic or refractory mould, wherein the mould is configured to receive feedstock; wherein the feedstock is configured to be heated in situ. A reusable mould, reusable susceptor, and/or release agent may be incorporated. Method of manufacturing a mould, and casting a part employing 5 in situ heating, are also provided.

IPC Classes  ?

• B22C 9/06 - Permanent moulds for shaped castings
• B22D 23/06 - Melting-down metal, e.g. metal particles, in the mould
• B33Y 80/00 - Products made by additive manufacturing

Abstract

A casting mould comprising: an inorganic or refractory mould, wherein the mould is configured to receive feedstock; wherein the feedstock is configured to be heated in situ. A reusable mould, reusable susceptor, and / or release agent may be incorporated. Method of manufacturing a mould, and casting a part employing 5 in situ heating, are also provided.

IPC Classes  ?

• B29C 33/02 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means
• B29C 33/06 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using radiation
• B29C 33/56 - CoatingsReleasing, lubricating or separating agents
• B29C 45/73 - Heating or cooling of the mould

Abstract

A casting mould comprising: an inorganic or refractory mould, wherein the mould is configured to receive feedstock; wherein the feedstock is configured to be heated in situ. A reusable mould, reusable susceptor, and / or release agent may be incorporated. Method of manufacturing a mould, and casting a part employing 5 in situ heating, are also provided.

IPC Classes  ?

• B29C 33/06 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using radiation
• B29C 33/02 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means
• B29C 33/56 - CoatingsReleasing, lubricating or separating agents
• B29C 45/73 - Heating or cooling of the mould