Abstract: A turning tool includes a tool main body that extends along a tool axis and that has a pedestal at a tip portion, a cutting insert that is detachably attached to the pedestal, and a distance sensor that is attached to the tool main body. Herein, the distance sensor is an eddy current sensor. With such a turning tool, accuracy of dimension measurement can be improved.

Abstract: This method is a machining method using a tool body (10, 110) to which a distance sensor (31, 32) is attached, the method including a coordinate setting step of setting each of a cutting edge coordinate with a point of a cutting edge (22, 122) provided at the tool body (10, 110) as reference and a sensor coordinate with a reference point of the distance sensor (31, 32) as reference, a machining step of forming a machined surface using the cutting edge coordinate, and a measurement step of measuring a dimension of the machined surface using the sensor coordinate.

Abstract: A pore device is used with a measurement device. The pore device includes a pore chip and a chip case which has a chamber partitioned by the pore chip. A measurement terminal group is provided to apply an electric signal from the measurement device to the chamber and output an electric signal generated in the chamber to the measurement device. Interface means is connected to a nonvolatile memory such that the nonvolatile memory is accessible from an outside of the pore device.

Abstract: A turning tool includes a tool body extending along a tool axis and having a base on a tip of the tool body, a cutting insert detachably attached to the base, and a measurement device attached to the tool body. The measurement device has a first distance sensor which measures a distance to an object located radially outward of the tool axis.

Abstract: A turning tool includes a tool body extending along a tool axis and having a base on a tip of the tool body, a cutting insert detachably attached to the base, and a measurement device attached to the tool body. The measurement device has a first distance sensor which measures a distance to an object located radially outward of the tool axis.

Abstract: An object is to provide a tool holder that can efficiently supply a coolant to a flank and a cutting edge by preventing the leakage of a coolant and can accurately and stably supply a coolant so as to correspond to the shapes of various cutting edges or the types of cutting. A face, a flank, and a cutting edge forming an intersection ridge between the face and the flank are disposed at a leading end portion of a shaft-shaped tool body in a tool holder. A coolant supply passage is formed in the tool body, and a coolant ejection member is detachably provided at the leading end portion of the tool body. The coolant ejection member includes a tubular portion, and an ejection hole that communicates with the coolant supply passage through the inside of the tubular portion and opens toward the flank and the cutting edge.

Abstract: An object is to provide a tool holder that can efficiently supply a coolant to a flank and a cutting edge by preventing the leakage of a coolant and can accurately and stably supply a coolant so as to correspond to the shapes of various cutting edges or the types of cutting. A face, a flank, and a cutting edge forming an intersection ridge between the face and the flank are disposed at a leading end portion of a shaft-shaped tool body in a tool holder. A coolant supply passage is formed in the tool body, and a coolant ejection member is detachably provided at the leading end portion of the tool body. The coolant ejection member includes a tubular portion, and an ejection hole that communicates with the coolant supply passage through the inside of the tubular portion and opens toward the flank and the cutting edge.

Abstract: A cutting insert (130) is formed to be rotationally symmetric with respect to an axis line (C3) of a height direction and to be planarly symmetric with respect to a virtual plane of the insert (VS1), an axis line (C2) of a traverse direction is gradually inclined toward the front of a rotational direction around which a workpiece (W) rotates moving toward a first traverse direction (C2A), an axis line (C1) of a longitudinal direction extends toward a lower surface side of an insert body (131) so as to approach a virtual plane of the tool moving toward a first longitudinal direction (C1A), and one corner portion (143C) in the other cutting edge (132B) is disposed further toward a first traverse direction (C2A) than one corner portion (143A) in one cutting edge (132A).

Abstract: This detachable insert type cutting tool is provided with a cutting insert and a holder which holds the cutting insert. An insert mounting seat on which the cutting insert is mounted and upper and lower jaw sections which pinch the cutting insert are provided in the holder. The insert mounting seat is provided between the lower surface of the upper jaw section and the upper surface of the lower jaw section. Convex curve outer surfaces are formed on one side of the upper and lower jaw sections when viewed from the leading end sides of the upper and lower jaw sections, and concave curve inner surfaces are formed on the other side of the upper and lower jaw sections. In a state where the cutting insert is fixed to the insert mounting seat, the concave curve inner surface of the upper jaw section is disposed at a position retreated further radially outward than an arc surface extending along the concave curve inner surface of the lower jaw section.

Abstract: The cutting insert for a face milling cutter is provided with an insert main body which is formed in a polygonal plate shape and in a shape of inversion symmetry on the front and back faces, a pair of polygonal faces facing in a thickness direction of the insert main body, side faces facing in a direction intersecting with the thickness direction, and cutting edges formed along a ridge line between the polygonal face and the side face. The polygonal face is in a substantially regular polygonal shape. The cutting edge has a major cutting edge, a minor cutting edge, and a connecting edge. The side face has a first flank face arranged adjacent to the cutting edge and gradually inclines outward in the insert radial direction. The first flank face is arranged so as to be adjacent at least to the major cutting edge.

Abstract: Materials for culturing cardiovascular tissues wherein a sponge made of a bioabsorbable material is reinforced with a reinforcement made of a bioabsorbable material.

Abstract: In a head member (30) for this cutting tool with detachable insert (70), a slit (38) is provided so as to further extend towards a rear end side from a rear end for an insert attachment seat formed by a pressing surface of an upper jaw portion of a head member body (31) and a pedestal surface of a lower jaw portion (33). Also, a clamp screw engaged with the upper jaw portion is screwed while inclining in a direction separated as it moves towards the lower jaw portion (33), with respect to an imaginary plane (P) which extends along an extension direction of the slit (38) and in a direction in which the pressing surface and the pedestal surface face each other, whereby the upper jaw portion is enabled to elastically deform by using as a fulcrum a connecting portion 39 between a rear wall surface (38B) of the slit (38), and a rear end surface (31F) of the head member body (31).

Abstract: In a head member (30) for a cutting tool with detachable insert (70) including a head member body (31) formed with an insert attachment seat (36) to which a cutting insert (50) having cutting blades (52) is detachably attached, and constituting the cutting tool with detachable insert (70) by being mounted to a tip portion of a holder (10), a side surface (31A) of the head member body (31) is formed with a recess (44) which has a continuous inner wall surface therearound and a bottom surface connected to the inner wall surface over its whole periphery and which is recessed from the side surface (31A) without passing though the head member body (31). According to this head member (30), generation of chatter vibration can be suppressed even if the amount of protrusion is increased, and the cutting heat of a cutting insert can be efficiently radiated.

Abstract: This detachable insert type cutting tool is provided with a cutting insert and a holder which holds the cutting insert. An insert mounting seat on which the cutting insert is mounted and upper and lower jaw sections which pinch the cutting insert are provided in the holder. The insert mounting seat is provided between the lower surface of the upper jaw section and the upper surface of the lower jaw section. Convex curve outer surfaces are formed on one side of the upper and lower jaw sections when viewed from the leading end sides of the upper and lower jaw sections, and concave curve inner surfaces are formed on the other side of the upper and lower jaw sections. In a state where the cutting insert is fixed to the insert mounting seat, the concave curve inner surface of the upper jaw section is disposed at a position retreated further radially outward than an arc surface extending along the concave curve inner surface of the lower jaw section.

Abstract: A cutting insert, wherein: a cutting edge part having a quadrangular shaped cutting face, which is provided with a pair of side cutting edges extending in a longitudinal direction of an insert body, and a front cutting edge between ends of the side cutting edges that extends in a direction that intersects the longitudinal direction, is formed at an end of the insert body having a bar-shape; and viewed from a direction facing the cutting face perpendicularly to the longitudinal direction, at least one of a pair of corner edges where the side cutting edge and the front cutting edge intersect is formed in a convex shape such that it has a point of inflection at which, after a tangent line that makes contact with the corner edge rotates in a direction extending in the longitudinal direction along the corner edge from the front cutting edge, its direction of rotation changes, and it joins the side cutting edge.

Abstract: The cutting tool for machining an inner surface of a hole is provided with a cutting tool main body extending in the shape of a shaft, a cutting edge portion mounted on a head portion of the cutting tool main body so as to radially-outwardly protrude with respect to the center axis of the cutting tool main body, and a coolant hole formed at the cutting tool main body so as to have an opening at a position apart from the cutting edge portion on a circumferential surface of the head portion of the cutting tool main body, thereby flushing out a coolant from the opening to an axially orthogonal plane orthogonal to the center axis and also along a protruding direction at which the cutting edge portion protrudes. The opening of the coolant hole faces a direction different from the protruding direction of the cutting edge portion in the radial direction with respect to the center axis.

Abstract: A cutting insert (130) is formed to be rotationally symmetric with respect to an axis line (C3) of a height direction and to be planarly symmetric with respect to a virtual plane of the insert (VS1), an axis line (C2) of a traverse direction is gradually inclined toward the front of a rotational direction around which a workpiece (W) rotates moving toward a first traverse direction (C2A), an axis line (C1) of a longitudinal direction extends toward a lower surface side of an insert body (131) so as to approach a virtual plane of the tool moving toward a first longitudinal direction (C1A), and one corner portion (143C) in the other cutting edge (132B) is disposed further toward a first traverse direction (C2A) than one corner portion (143A) in one cutting edge (132A).

Abstract: The detachable insert-type cutting tool is provided with a holder, a head member which has an insert seat on which a cutting insert is detachably mounted and which is detachably attached to a head portion of the holder so that an attachment surface of the head member is closely in contact with an attachment surface of the holder, a coolant hole which is formed inside the holder so as to be opened on the attachment surface of the holder, and a first groove which is formed on the attachment surface of the head member, communicating with the coolant hole opened on the attachment surface of the holder and extending so as to be opened toward a cutting edge of the cutting insert mounted on the insert seat.

Abstract: A clamping mechanism for a cutting insert that clamps the cutting insert in an insert mounting seat having a pair of contacting surfaces facing each other. Contacting surfaces of the insert mounting seat are provided with a pair of inclined planes inclined so as to be formed in a convex V-shape in the cross-section along the contacting direction, and the contact surfaces of the cutting insert are formed in a concave V-shape which has a pair of convex surfaces with roundness to be concave toward the inclined planes, and the pair of inclined planes and the pair of convex surfaces come in contact with each other at a pair of contacting positions, which have an interval therebetween in the width direction orthogonal to the contacting direction.