A method for producing a three-dimensional shaped article includes a first shaping step of shaping a first portion of the three-dimensional shaped article by ejecting a shaping material to a stage, and a second shaping step of shaping a second portion of the three-dimensional shaped article having an overlapping portion overlapping with the first portion, and a non-overlapping portion that does not overlap with the first portion, that forms a space between the same and the first portion, and that is in contact with the overlapping portion at one end. In the second shaping step, the overlapping portion is shaped by ejecting the shaping material onto the first portion, and thereafter, the non-overlapping portion is shaped by ejecting the shaping material so as to be in contact with the overlapping portion.

A method for producing a three-dimensional shaped article includes a first shaping step of shaping a first portion of the three-dimensional shaped article by ejecting a shaping material to a stage, and a second shaping step of shaping a second portion of the three-dimensional shaped article having an overlapping portion overlapping with the first portion, and a non-overlapping portion that does not overlap with the first portion, that forms a space between the same and the first portion, and that is in contact with the overlapping portion at one end. In the second shaping step, the overlapping portion is shaped by ejecting the shaping material onto the first portion, and thereafter, the non-overlapping portion is shaped by ejecting the shaping material so as to be in contact with the overlapping portion.

Systems and methods for forming an object using additive manufacturing. One method includes receiving a digital model of the object, predicting a shrinking characteristic or receiving a predicted shrinking characteristic of the object that will occur during thermal processing of the object, once formed, and generating, based on the shrinking characteristic of the object, instructions for forming a raft on which the object will be formed. The instructions for forming the raft are configured to form a raft having a shrinking characteristic that reflects the shrinking characteristic of the object.

Systems and methods for forming an object using additive manufacturing. One method includes receiving a digital model of the object, predicting a shrinking characteristic or receiving a predicted shrinking characteristic of the object that will occur during thermal processing of the object, once formed, and generating, based on the shrinking characteristic of the object, instructions for forming a raft on which the object will be formed. The instructions for forming the raft are configured to form a raft having a shrinking characteristic that reflects the shrinking characteristic of the object.

An additive manufacturing device manufactures an additively manufactured article by preheating a powder material by irradiating the powder material with a charged particle beam and then melting the powder material by irradiating the powder material with the charged particle beam. The additive manufacturing device includes a beam emitting unit emitting the charged particle beam and irradiating the powder material with the charged particle beam, and a position detection unit detecting a position of scattering of the powder material when the powder material scatters by being irradiated with the charged particle beam. When the powder material scatters by being irradiated with the charged particle beam, the beam emitting unit emits the charged particle beam such that a thermal dose of the preheating is increased at the position of scattering.

An additive manufacturing device manufactures an additively manufactured article by preheating a powder material by irradiating the powder material with a charged particle beam and then melting the powder material by irradiating the powder material with the charged particle beam. The additive manufacturing device includes a beam emitting unit emitting the charged particle beam and irradiating the powder material with the charged particle beam, and a position detection unit detecting a position of scattering of the powder material when the powder material scatters by being irradiated with the charged particle beam. When the powder material scatters by being irradiated with the charged particle beam, the beam emitting unit emits the charged particle beam such that a thermal dose of the preheating is increased at the position of scattering.

A three-dimensional printing system includes a print bed and a shelf insertion mechanism for inserting a shelf of one or a plurality of auxiliary shelves into a print volume between the print bed and a printer head. A printer assembly is configured to deposit layers of material within the print volume to form one or more objects on a support platform, the support platform including the print bed or an auxiliary shelf that is inserted into the print volume by the shelf insertion mechanism. A controller is configured to control the shelf insertion mechanism to insert an auxiliary shelf between the print bed and a printer head of the system after formation of the objects on that support platform by the printer assembly is complete.

A three-dimensional printing system includes a print bed and a shelf insertion mechanism for inserting a shelf of one or a plurality of auxiliary shelves into a print volume between the print bed and a printer head. A printer assembly is configured to deposit layers of material within the print volume to form one or more objects on a support platform, the support platform including the print bed or an auxiliary shelf that is inserted into the print volume by the shelf insertion mechanism. A controller is configured to control the shelf insertion mechanism to insert an auxiliary shelf between the print bed and a printer head of the system after formation of the objects on that support platform by the printer assembly is complete.

A method of making sintered components made from an iron-based powder composition and the sintered component per se. The method is especially suited for producing components which will be subjected to wear at elevated temperatures, consequently the components consists of a heat resistant stainless steel with hard phases including chromium carbo-nitrides. Examples of such components are parts in turbochargers for internal combustion engines.

A method of making sintered components made from an iron-based powder composition and the sintered component per se. The method is especially suited for producing components which will be subjected to wear at elevated temperatures, consequently the components consists of a heat resistant stainless steel with hard phases including chromium carbo-nitrides. Examples of such components are parts in turbochargers for internal combustion engines.