摘要:
Provided is a three-dimensional object producing method that includes applying an object forming liquid to powder including a base material and an organic material to form a solidified product, and removing the powder deposited on the solidified product from the solidified product using a powder removal liquid including an organic solvent. The following formulae are satisfied RED of non-forming part 0.55. The forming part is a portion of the powder to which the object forming liquid is applied and RED of the forming part is a distance between HSP of the forming part and HSP of the organic solvent. The non-forming part is a portion of the powder to which the object forming liquid is not applied and RED of the non-forming part is a distance between HSP of the non-forming part and HSP of the organic solvent.
摘要:
Provided is a powder material for producing a three-dimensional object including: a base material; a resin; and resin particles, wherein an amount W (mass %) of carbon remaining in the powder material after heating in a vacuum of 10−2 Pa or lower at 450 degrees C. for 2 hours satisfies the following formula: W (mass %)
摘要:
A three-dimensional object producing method including: forming a powder material layer with a powder material for three-dimensional object formation, where the powder material includes a base material and a resin including a reactive functional group; and applying a curing liquid to the powder material layer to form a cured product, where the curing liquid contains a curing agent capable of forming a covalent bond with the reactive functional group, wherein the curing agent includes an aliphatic compound having two or more isocyanate groups at a molecular terminal thereof.
摘要:
A powder for forming 3D objects includes a group of particles having an identical composition. The group of the particles includes 50% by mass or greater of aluminum. An oxygen content of the group of the particles is 950 ppm or less. A volume-based particle size frequency distribution of the powder for forming 3D objects has a peak top in a particle diameter range of 40 μm or greater and 70 μm or less, and a peak top in a particle diameter range of 10 μm or greater and 30 μm or less. A ratio (a frequency (%) of the peak top in the particle diameter range of 40 μm or greater and 70 μm or less)/(a frequency (%) of the peak top in the particle diameter range of 10 μm or greater and 30 μm or less) is 1.5 or greater.
摘要:
A method is provided of fabricating a three-dimensional object by laminating layered fabrication objects. Each layered fabrication object includes bonded powder of a powder layer. The method includes forming a sacrificial fabrication object separable from the three-dimensional object via the powder below a fabrication area of a layered fabrication object having a lower surface in contact with the powder, in forming the lower surface in contact with the powder.
摘要:
A method is provided of fabricating a three-dimensional object by laminating layered fabrication objects. Each layered fabrication object includes bonded powder of a powder layer. The method includes forming a sacrificial fabrication object separable from the three-dimensional object via the powder below a fabrication area of a layered fabrication object having a lower surface in contact with the powder, in forming the lower surface in contact with the powder.
摘要:
A liquid fabrication applied to a layer of powder containing an inorganic particle, wherein the liquid fabrication has a powder contact angle with the inorganic particle of 50 degrees or greater and satisfies the following relationship 1: γcosθ/η≤1.5 m/s, where θ represents the powder contact angle, γ represents a surface tension in mN/m of the liquid fabrication at 23 degrees C., and η represents a viscosity in mPa·s of the liquid fabrication at 25 degrees C.
摘要:
Provided is an object forming liquid containing a resin containing at least one structural unit selected from the group consisting of a structural unit represented by a predetermined structural formula (1) and a structural unit represented by a predetermined structural formula (2), and an organic solvent, and substantially free of water. The object forming liquid is applied to a layer of a powder containing metal particles.