CUTTING INSERT AND CUTTING TOOL ON WHICH SAME IS MOUNTED

• Main Authors: OH, Min Seok, KIM, Hyo San, KIM, Young Heum, NAM, Ki Chan, LEE, Byeong Yun
• Format: Patent
• Language: English; French; Korean
• Published: 25.07.2019
• Subjects: MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MILLING; PERFORMING OPERATIONS; TRANSPORTING

A cutting insert of the present invention comprises: an upper surface and a lower surface; first and second lateral surfaces; first and second cutting edge parts; and corner cutting edges, wherein the first cutting edge part includes: a first main cutting edge for forming one end at a portion spaced farthest away from the corner cutting edge; a first sub-cutting edge connected to the corner cutting edge; and a first auxiliary cutting edge for connecting the first main cutting edge and the first sub-cutting edge so as to form a step between the same, and the first sub-cutting edge and the corner cutting edge form one straight line when viewed toward the first lateral surface, and are inclined upward in the direction opposite to the direction toward the lower surface while gradually going in the direction toward the second cutting edge part. La présente invention concerne une plaquette de coupe, laquelle plaquette comprend : une surface supérieure et une surface inférieure ; des première et seconde surfaces latérales ; des première et seconde parties de bord de coupe ; et des bords de coupe de coin, la première partie de bord de coupe comprenant : un premier bord de coupe principal pour former une extrémité dans une partie espacée le plus loin du bord de coupe de coin ; un premier sous-bord de coupe relié au bord de coupe de coin ; et un premier bord de coupe auxiliaire pour relier le premier bord de coupe principal et le premier sous-bord de coupe de façon à former un épaulement entre ceux-ci, et le premier sous-bord de coupe et le bord de coupe de coin formant une ligne droite quand ils sont vus vers la première surface latérale, et étant inclinées vers le haut dans la direction opposée à la direction vers la surface inférieure tout en allant graduellement dans la direction vers la seconde partie de bord de coupe. 본 발명의 절삭 인서트는, 상면과 하면, 제1 및 제2 측면, 제1 및 제2 절인부, 그리고 코너 절인을 포함하고, 제1 절인부는, 코너 절인에서 가장 멀리 떨어진 부분에 일단을 이루는 제1 주절인; 코너 절인에 연결되는 제1 부절인; 및 제1 주절인과 제1 부절인을 단차지게 연결하는 제1 보조 절인;을 포함하고, 제1 부절인과 코너 절인은, 제1 측면을 향해 볼 때, 하나의 직선을 이루고 제2 절인부를 향하는 방향으로 갈수록 하면을 향하는 방향의 반대 방향으로 상향 경사진다.