Provided is a resin composition for three-dimensional photofabrication which, after curing, melts at a relatively low temperature of about 200 C. and which is excellent in fabricability. The present invention relates to a resin composition for three-dimensional photofabrication, containing a reactive material having in a molecule thereof an acetal structure and a crosslinkable double bond.

A process for forming a high temperature single crystal canted spring is provided. In one embodiment, the process includes fabricating configurations of a rapid prototype spring to fabricate a sacrificial mold pattern to create a ceramic mold and casting a canted coiled spring to form at least one canted coil spring configuration based on the ceramic mold. The high temperature single crystal canted spring is formed from a nickel-based alloy containing rhenium using the at least one coil spring configuration.

Provided is a method of molding an elevator and an endoscope, the method making it possible to mold an elevator integrally with an operation wire with a simple operation. A method of molding an elevator (36) is a method of molding an elevator (32) integrally with an operation wire (40), the elevator (32) being to be disposed in a distal-end-portion body (32) of an endoscope (10). The method includes: a step of disposing the operation wire (40) to extend through a cavity (106), which is formed by a first die (102) and a second die (104) that are separable in a separation direction, in a state in which the first die (102) and the second die (104) are mated to each other and in which the separation direction and a wire-axis direction of the operation wire (40) coincide with each other; a step of integrally molding the elevator (36) and the operation wire (40) by injecting a molding material (108), which is a material of the elevator (36), into the cavity (106); and a step of separating the first die (102) and the second die (104) in the separation direction after molding the elevator.

Provided is a method of molding an elevator and an endoscope, the method making it possible to mold an elevator integrally with an operation wire with a simple operation. A method of molding an elevator (36) is a method of molding an elevator (32) integrally with an operation wire (40), the elevator (32) being to be disposed in a distal-end-portion body (32) of an endoscope (10). The method includes: a step of disposing the operation wire (40) to extend through a cavity (106), which is formed by a first die (102) and a second die (104) that are separable in a separation direction, in a state in which the first die (102) and the second die (104) are mated to each other and in which the separation direction and a wire-axis direction of the operation wire (40) coincide with each other; a step of integrally molding the elevator (36) and the operation wire (40) by injecting a molding material (108), which is a material of the elevator (36), into the cavity (106); and a step of separating the first die (102) and the second die (104) in the separation direction after molding the elevator.

A method of producing hybrid castings, combined, movably joined from metal alloys in sand or permanent casting molds, where the method for manufacture of hybrid castings, especially with movable connections, in sand moulds or permanent moulds, comprises preparing metal components if the form of cast-in pieces, insert (5) for setting in the cope or drag (1,2), pre-heating to a given temperature depending on the material to increase the adhesion of the cast-in piece, insert (5) surface in the process of casting a hybrid casting (4), resulting in a final product comprising connected, movable hybrid components as an assembly for direct use.

A method of producing hybrid castings, combined, movably joined from metal alloys in sand or permanent casting molds, where the method for manufacture of hybrid castings, especially with movable connections, in sand moulds or permanent moulds, comprises preparing metal components if the form of cast-in pieces, insert (5) for setting in the cope or drag (1,2), pre-heating to a given temperature depending on the material to increase the adhesion of the cast-in piece, insert (5) surface in the process of casting a hybrid casting (4), resulting in a final product comprising connected, movable hybrid components as an assembly for direct use.