Abstract: The present disclosure provides a terminal block that can be kept compact. A terminal block has a housing made of a synthetic resin, a columnar metal connection terminal held by the housing, and a cylindrical metal joint part in which a device connection part of the connection terminal is inserted. The joint part has a cylindrical part in which the device connection part is inserted and a cylindrical part in which an end part of a device-side terminal electrically connected to the connection terminal is inserted. The connection terminal is electrically connected to the device-side terminal via the joint part.

Abstract: A metal porous body sheet includes a metal porous body having a three-dimensional mesh structure and has a first main surface and a second main surface that is a reverse surface to the first main surface. The first main surface is formed with multiple holes extending from the first main surface toward the second main surface along a first direction.

Abstract: The present disclosure provides a terminal block that can be kept compact. A terminal block has a housing made of a synthetic resin, a columnar metal connection terminal held by the housing, and a cylindrical metal joint part in which a device connection part of the connection terminal is inserted. The joint part has a cylindrical part in which the device connection part is inserted and a cylindrical part in which an end part of a device-side terminal electrically connected to the connection terminal is inserted. The connection terminal is electrically connected to the device-side terminal via the joint part.

Abstract: A manufacturing method, a manufacturing apparatus, a computer readable recording medium, and a program for manufacturing a machine component having a rotation symmetry plane are provided.

Abstract: A method for manufacturing a machine component includes determining a track of a cutting edge and feeding the cutting edge along the track. The determining a track includes calculating a coordinate (X(t), Y(t), Z(t)) of a first end portion of the cutting edge in accordance with X(t)=(Rsh(t)cos ?(t)?Xchip(t)), Y(t)=(Rsh(t)sin ?(t)?Ychip(t)), and Z(t)=(Zsh(t)?Zchip(t)), where a variable t assumes (N+1) values not smaller than 0 and not greater than 1. ?(t) represents an angle formed by a straight line connecting a point of cutting projected on an XY plane and an origin of the XY plane to each other with respect to an X axis, and ?(t) satisfies a condition tan ? ? ? ? ( t ) = tan ? ? ? · tan ? ? ? s - tan ? ? ? · tan 2 ? ? + tan 2 ? ? - tan 2 ? ? s tan ? ? ? · tan ? ? ? s + tan ? ? ? · tan 2 ? ? + tan 2 ? ? - tan 2 ? ? s .

Abstract: A method of correcting a track of a cutting edge is provided. With movement of the cutting edge, a point on the cutting edge in contact with the rotation symmetry plane is moved along the cutting edge from a first end portion of the cutting edge to a second end portion of the cutting edge opposite to the first end portion. The correction method includes measuring, by a measurement unit, a shape of the cut and machined rotation symmetry plane, calculating, by an operation unit, an error of the measured shape of the rotation symmetry plane from a target shape of the rotation symmetry plane in a direction of the axial line of rotation, and correcting, by the operation unit, a component in the direction of the axial line of rotation of a track of a point of cutting based on the error.

Abstract: A hollow structure includes: a main portion having an inner circumferential surface; and a flange portion including a first overhanging portion and a second overhanging portion that protrude outward from an outer circumference of the main portion and face each other. A first surface of the first overhanging portion and a second surface of the second overhanging portion are continuous with the inner circumferential surface, and the flange portion has a joint portion at which the first surface and the second surface are joined together. The main portion and the flange portion are formed of a metal material composed mainly of a light metal, and the formula ?<A/W1 is satisfied, where W1 is the width of the flange portion, and A is the width of the joint portion.

Abstract: A method for manufacturing a machine component having a rotation symmetry plane includes machining a rotation symmetry plane. The machining a rotation symmetry plane includes determining a track of the cutting. The determining a track determines the track in accordance with a condition that (1) a first end portion of the cutting edge is positioned at a cutting start position of the rotation symmetry plane, (2) N regions defined by division of the cutting edge successively come in contact with the rotation symmetry plane, (3) an inclination of a tangent line at a point of cutting of each of the N regions is equal to a target inclination of a tangent line which passes through the point of cutting and comes in contact with the rotation symmetry plane in a cut plane of the rotation symmetry plane, and (4) a second end of the cutting edge is positioned at a cutting end position of the rotation symmetry plane.

Abstract: A method for manufacturing a machine component includes determining a track of a cutting edge and feeding the cutting edge along the track. The determining a track includes calculating a coordinate (X(t), Y(t), Z(t)) of a first end portion of the cutting edge in accordance with X(t)=(Rsh(t)cos ?(t)?Xchip(t)), Y(t)=(Rsh(t)sin ?(t)?Ychip(t)), and Z(t)=(Zsh(t)?Zchip(t)), where a variable t assumes (N+1) values not smaller than 0 and not greater than 1. ?(t) represents an angle formed by a straight line connecting a point of cutting projected on an XY plane and an origin of the XY plane to each other with respect to an X axis, and ?(t) satisfies a condition tan ? ? ? ? ( t ) = tan ? ? ? · tan ? ? ? s - tan ? ? ? · tan 2 ? ? + tan 2 ? ? - tan 2 ? ? s tan ? ? ? · tan ? ? ? s + tan ? ? ? · tan 2 ? ? + tan 2 ? ? - tan 2 ? ? s .

Abstract: A manufacturing method, a manufacturing apparatus, a computer readable recording medium, and a program for manufacturing a machine component having a rotation symmetry plane are provided.

Abstract: A method includes positioning a linear cutting edge inclined at an angle greater than 0° and smaller than 90° with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane by feeding the cutting edge from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component.

Abstract: A method of correcting a track of a cutting edge is provided. With movement of the cutting edge, a point on the cutting edge in contact with the rotation symmetry plane is moved along the cutting edge from a first end portion of the cutting edge to a second end portion of the cutting edge opposite to the first end portion. The correction method includes measuring, by a measurement unit, a shape of the cut and machined rotation symmetry plane, calculating, by an operation unit, an error of the measured shape of the rotation symmetry plane from a target shape of the rotation symmetry plane in a direction of the axial line of rotation, and correcting, by the operation unit, a component in the direction of the axial line of rotation of a track of a point of cutting based on the error.

Abstract: A method includes positioning a linear cutting edge inclined at an angle greater than 0° and smaller than 90° with respect to a Z axis at a cutting start position displaced from a position on an X axis along a direction of a Y axis in a three-dimensional orthogonal coordinate system in which an axial line of rotation of a rotation symmetry plane is defined as the Z axis, an axis in a radial direction of the rotation symmetry plane is defined as the X axis, and an axis orthogonal to both of the Z axis and the X axis is defined as the Y axis and machining the rotation symmetry plane by feeding the cutting edge from the cutting start position along a track having an X axis component, a Y axis component, and a Z axis component while the cutting edge is in contact with a rotating machine component.

Abstract: A method for manufacturing a machine component having a rotation symmetry plane includes machining a rotation symmetry plane. The machining a rotation symmetry plane includes determining a track of the cutting. The determining a track determines the track in accordance with a condition that (1) a first end portion of the cutting edge is positioned at a cutting start position of the rotation symmetry plane, (2) N regions defined by division of the cutting edge successively come in contact with the rotation symmetry plane, (3) an inclination of a tangent line at a point of cutting of each of the N regions is equal to a target inclination of a tangent line which passes through the point of cutting and comes in contact with the rotation symmetry plane in a cut plane of the rotation symmetry plane, and (4) a second end of the cutting edge is positioned at a cutting end position of the rotation symmetry plane.