Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CUTTING TOOL
PROBLEM TO BE SOLVED: To provide a cutting tool having a hard film formed on a surface of a cBN sinter body thereof, which can restrain the hard film from being torn off or peeled off at a cutting edge and has an excellent tool service life.SOLUTION: The cutting tool comprises at least a tool main body having a cBN sinter body at a site where a cutting edge is formed, and at least a hard film covering the site where the cutting edge of the tool main body is formed, which has a honing surface at a cross ridge-line part between a rake surface and a flank surface in which the cutting edge of the tool main body is formed. The honing surface includes: a first chamfer surface extending linearly in a direction of crossing the rake surface and the flank surface in a first cross section orthogonal to the cross ridge-line part; and a second chamfer surface extending linearly in a direction of the flank surface from an end part at the flank surface side of the first chamfer surface in the first cross section.SELECTED DRAWING: Figure 3
【課題】ｃＢＮ焼結体の表面に硬質皮膜が形成された切削工具であって、刃先における硬質皮膜の欠けや剥離が抑制され、優れた工具寿命を有する切削工具を提供する。【解決手段】少なくとも切れ刃が形成される部位にｃＢＮ焼結体を有する工具本体と、工具本体の少なくとも切れ刃が形成される部位に被覆された硬質皮膜と、を備え、工具本体の切れ刃が形成されるすくい面と逃げ面との交差稜線部にホーニング面を有し、ホーニング面は、交差稜線部に直交する第１断面においてすくい面及び逃げ面と交差する方向に直線状に延びる第１チャンファー面と、第１断面において第１チャンファー面の逃げ面側の端部から逃げ面の方向に直線状に延びる第２チャンファー面とを含む、切削工具。【選択図】図３
CUTTING TOOL
PROBLEM TO BE SOLVED: To provide a cutting tool having a hard film formed on a surface of a cBN sinter body thereof, which can restrain the hard film from being torn off or peeled off at a cutting edge and has an excellent tool service life.SOLUTION: The cutting tool comprises at least a tool main body having a cBN sinter body at a site where a cutting edge is formed, and at least a hard film covering the site where the cutting edge of the tool main body is formed, which has a honing surface at a cross ridge-line part between a rake surface and a flank surface in which the cutting edge of the tool main body is formed. The honing surface includes: a first chamfer surface extending linearly in a direction of crossing the rake surface and the flank surface in a first cross section orthogonal to the cross ridge-line part; and a second chamfer surface extending linearly in a direction of the flank surface from an end part at the flank surface side of the first chamfer surface in the first cross section.SELECTED DRAWING: Figure 3
【課題】ｃＢＮ焼結体の表面に硬質皮膜が形成された切削工具であって、刃先における硬質皮膜の欠けや剥離が抑制され、優れた工具寿命を有する切削工具を提供する。【解決手段】少なくとも切れ刃が形成される部位にｃＢＮ焼結体を有する工具本体と、工具本体の少なくとも切れ刃が形成される部位に被覆された硬質皮膜と、を備え、工具本体の切れ刃が形成されるすくい面と逃げ面との交差稜線部にホーニング面を有し、ホーニング面は、交差稜線部に直交する第１断面においてすくい面及び逃げ面と交差する方向に直線状に延びる第１チャンファー面と、第１断面において第１チャンファー面の逃げ面側の端部から逃げ面の方向に直線状に延びる第２チャンファー面とを含む、切削工具。【選択図】図３
CUTTING TOOL
切削工具
YUMOTO NORIJI (Autor:in) / YASUDA MAKOTO (Autor:in)
28.09.2017
Patent
Elektronische Ressource
Japanisch