Sumitomo Electric Hardmetal Corp.

Hartmetall-werkzeugfabrik Paul Horn Gmbh

Yosuke Shimamoto

Naoki Matsuda

Naoya Tsuda

Hideo Maeno

Yifan Wen

Junya Okida

Tomoyuki Fukuyama

Katsuya Nakakihara

Takahiro Okuno

Yasuyuki Kanada

Matthias Luik

Taiga Sueyoshi

Masanobu Ueda

Satoru Kukino

Tsutomu Hirano

Yasuhiko Okita

Shinya Ikenaga

Takuma Kishimoto

Pressing tool for cutting tool

The boundary flow path is constituted of a pair of boundary wall surfaces facing each other in a first cross section intersecting each of the first flow path, the boundary flow path, and the second flow path. An inclination of a tangent to at least one of the pair of boundary wall surfaces is continuously changed. In a second cross section perpendicular to a direction in which coolant flows, a lateral width of the first flow path is larger than a longitudinal width of the first flow path and a lateral width of the second flow path is larger than a longitudinal width of the second flow path when a longitudinal direction represents a direction in which the pair of boundary wall surfaces face each other and a lateral direction represents a direction perpendicular to the longitudinal direction.

Retaining member and cutting tool

Cutting tool

Cutting tool insert

Cutting tool body

A cutting insert includes a cylindrical body portion, a cutting portion, a first fitting portion, a second fitting portion, and a third fitting portion. The cutting portion includes a rake face and a flank face. A ridgeline between the rake face and the flank face constitutes a cutting edge. When viewed in the axial direction, the cutting portion is provided opposite to the third fitting portion relative to the insertion hole. When viewed in the axial direction, a straight line extending through an outer circumferential end of the cutting edge and a center of the insertion hole overlaps with the third fitting portion and is located between the first fitting portion and the second fitting portion. A third central angle is smaller than a first central angle and is smaller than a second central angle.

Cutting insert and cutting tool

Cutting insert

A cutting tool holder according to one embodiment supports a cutting insert including a rake face, a flank face, and a cutting edge. The cutting tool holder according to one embodiment includes: a holder body having a seat face on which the cutting insert is placed; a pressing member that positions and fixes the cutting insert to the holder body; and a fixing member that fixes the pressing member to the holder body. The pressing member has: a front end portion close to the cutting edge; and a base end portion distant away from the cutting edge. The front end portion is provided with a first coolant ejection hole. A first flow path is provided inside the holder body. A coolant reservoir and a second flow path are provided inside the pressing member.

Cutting tool holder

Growing community of inventors

Itami, Japan

Yosuke Shimamoto