A method for forming a component includes providing a first layer of a mixture of first and second powders. The method includes determining the frequency of an alternating magnetic field to induce eddy currents sufficient to bulk heat only one of the first and second powders. The alternating magnetic field is applied at the determined frequency to a portion of the first layer of the mixture using a flux concentrator. Exposure to the magnetic field changes the phase of at least a portion of the first powder to liquid. The liquid portion couples to at least some of the second powder and subsequently solidifies to provide a composite component.

An additive manufacturing device performs preliminary heating of a powder material laid and leveled in an irradiation region of an electron beam by irradiating the powder material with the electron beam and manufacturing an additively manufactured article thereafter by irradiating the powder material with the electron beam and melting the powder material. The additive manufacturing device includes a beam emitting unit emitting the electron beam and irradiating the powder material with the electron beam. When the preliminary heating is performed, the beam emitting unit performs irradiation with the electron beam along an irradiation path in a first direction and performs irradiation with the electron beam thereafter along an irradiation path in a second direction set at a jump distance from the irradiation path in the first direction as a direction opposite to the first direction.

An additive manufacturing device performs preliminary heating of a powder material laid and leveled in an irradiation region of an electron beam by irradiating the powder material with the electron beam and manufacturing an additively manufactured article thereafter by irradiating the powder material with the electron beam and melting the powder material. The additive manufacturing device includes a beam emitting unit emitting the electron beam and irradiating the powder material with the electron beam. When the preliminary heating is performed, the beam emitting unit performs irradiation with the electron beam along an irradiation path in a first direction and performs irradiation with the electron beam thereafter along an irradiation path in a second direction set at a jump distance from the irradiation path in the first direction as a direction opposite to the first direction.

In an example implementation, a method of fusing layers of 3D parts includes forming a layer of build material, and selectively applying a liquid agent onto the layer of build material to define a part layer of a 3D part and a sacrificial layer of a sacrificial part. The method includes, in a single pass of a thermal energy source over the layer of build material, applying fusing energy to the sacrificial layer, sensing a temperature of the sacrificial layer, adjusting a power level of the thermal energy source based on the sensed temperature, and applying fusing energy to the part layer with the adjusted power level of the thermal energy source.

In an example implementation, a method of fusing layers of 3D parts includes forming a layer of build material, and selectively applying a liquid agent onto the layer of build material to define a part layer of a 3D part and a sacrificial layer of a sacrificial part. The method includes, in a single pass of a thermal energy source over the layer of build material, applying fusing energy to the sacrificial layer, sensing a temperature of the sacrificial layer, adjusting a power level of the thermal energy source based on the sensed temperature, and applying fusing energy to the part layer with the adjusted power level of the thermal energy source.

A radiation-curable slurry for additive manufacturing of 3D metal objects is provided, comprising: (a) 2-45 wt % of a polymerizable resin; (b) 0.001-10 wt % of one or more polymerization photoinitiators; and (c) 55-98 wt % of a mixture of metal-containing compounds, wherein the mixture of metal-containing compounds comprises, based on the weight of said mixture, 5-95 wt % of metal particles and 5-95 wt % of one or more metal precursors. An additive manufacturing method for producing a three-dimensional metal object using the slurry is provided, as well as three-dimensional metal objects obtainable by the method.

A method of manufacturing a three-dimensionally formed object includes: forming a layer using a flowable composition including constituent material particles of a three-dimensionally formed object and a flowable composition including support portion-forming particles for forming a support portion which supports the three-dimensionally formed object during the formation of the three-dimensionally formed object; and imparting energy to the constituent material particles and the support portion-forming particles, in which in the imparting of the energy, the energy is imparted such that a temperature of the constituent material particles and a temperature of the support portion-forming particles are equal to or higher than a melting point of the constituent material particles and are lower than a melting point of the support portion-forming particles.

A method of manufacturing a three-dimensionally formed object includes: forming a layer using a flowable composition including constituent material particles of a three-dimensionally formed object and a flowable composition including support portion-forming particles for forming a support portion which supports the three-dimensionally formed object during the formation of the three-dimensionally formed object; and imparting energy to the constituent material particles and the support portion-forming particles, in which in the imparting of the energy, the energy is imparted such that a temperature of the constituent material particles and a temperature of the support portion-forming particles are equal to or higher than a melting point of the constituent material particles and are lower than a melting point of the support portion-forming particles.

A method for producing a sintered component in the form of a workpiece having teeth, wherein crowning, with a central region and end regions, is formed in flanks of teeth, the tooth thickness being smaller in at least one of the end regions than in the central region of the flanks. In order to form the crowning, at least one pressing punch acts on the teeth, which are located in a die, along a first axis such that the teeth are sized at least to the central region by means of axial pressing.

A method for producing a sintered component in the form of a workpiece having teeth, wherein crowning, with a central region and end regions, is formed in flanks of teeth, the tooth thickness being smaller in at least one of the end regions than in the central region of the flanks. In order to form the crowning, at least one pressing punch acts on the teeth, which are located in a die, along a first axis such that the teeth are sized at least to the central region by means of axial pressing.