COATED CUTTING TOOLS

• Main Authors: GODSE, RAJENDRA V, QUINTO, DENNIS T, JINDAL, PREM C, UNDERCOFFER, KENNETH E, SANTHANAM T. ANAKKAVUR
• Format: Patent
• Language: English; Korean
• Published: 01.12.1999
• Edition: 6
• Subjects: BORING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMBINED OPERATIONS; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; OTHER WORKING OF METAL; PERFORMING OPERATIONS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TURNING; UNIVERSAL MACHINE TOOLS

본 발명은 피복재 및 기재를 지니는 피복된 절삭공구에 관한 것이다. 피복재는 적어도 하나의 화학적 증착(CVD) 층 및 적어도 하나의 물리적 증착(PVD) 층을 포함한다. 피복재의 최외측층은 잔류 압축성 응력을 포함하는 PVD 층이다. 기재는 접합제에 의해 함께 접합된 강한 내화성 입자들을 갖는 복합물이다. Provided is a coated cutting tool having a coating and a substrate. The coating includes at least one chemical vapor deposited (CVD) layer and at least one physical vapor deposited (PVD) layer. The outermost layer of the coating is a PVD layer, containing residual compressive stresses. The substrate is a composite having hard refractory grains bonded together by a binder material.