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Hard coating and hard coating-covered member

一种被膜、硬质的技术，应用在叠而成的,耐磨损性和耐熔敷性优领域，能够解决无法充分地获得耐磨损性等问题，达到晶粒微细化、优异耐氧化性、耐缺损性提高的效果

Active Publication Date: 2018-06-08
OSG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the drills described in Patent Document 1 and Non-Patent Document 1 have the following problem: if they are used for drilling carbon steel and cast iron, they cannot achieve sufficient wear resistance.

Method used

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  • Hard coating and hard coating-covered member
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  • Hard coating and hard coating-covered member

Examples

Experimental program
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Effect test

Embodiment

[0050] figure 1 with figure 2 It is a figure which shows the drill 10 which is an example of a hard-coated tool or a hard-coated member coated with the hard film 24 of this invention. figure 1 Is a front view seen from a direction at right angles to the axis O, figure 2 This is an enlarged bottom view seen from the tip side where the cutting edge 12 is provided. The drill 10 is a two-blade twist drill, and has a shank 14 and a main body 16 integrally in the axial direction, and a pair of grooves 18 twisted to the right along the axial center O are formed in the main body 16. A pair of cutting edges 12 are provided at the top end of the main body 16 corresponding to the groove 18, and the cutting edge 12 is used to cut the hole by driving it to rotate to the right along the axis O when viewed from the side of the shank 14. The chips are discharged to the shank 14 side through the groove 18.

[0051] In the front end surface of the main body 16, a pair of cutting fluid outlet h...

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Abstract

A hard coating (24) coated on the surface of a tool base material (30) is configured so as to have a total film thickness of 0.5-20 mum and has alternately laminated therein, by physical vapor deposition, an A layer (34) and a nanolayer-alternated layer (40) having a B layer (36) and a C layer (38) alternately laminated therein at nano-order thicknesses. The A layer (34) has a thickness of 50-1,000 nm and is an AlCr nitride having a compositional formula of [Al1-UCrU]N and an atomic ratio U of 0.20-0.80. The B layer (36) has a thickness of 1-100 nm and is a TiAl nitride having a compositionalformula [Ti1-WAlW]N and an atomic ratio W of 0.30-0.85. The C layer (38) has a thickness of 1-100 nm and is a TiSi nitride having a compositional formula [Ti1-YSiY]N and an atomic ratio Y of 0.05-0.45. The nanolayer-alternated layer (40) has a thickness of 50-1,000 nm.

Description

Technical field [0001] The present invention relates to a hard film and a hard film-coated member having excellent heat resistance and welding resistance, and particularly relates to the combination of an A layer as an AlCr nitride and a nano-thickness B layer as a TiAl nitride and a TiSi nitride A hard coating formed by alternately stacking alternating layers of C-layers and nano-layers with a thickness of the nanometer order of the compound, and excellent in abrasion resistance and welding resistance. Background technique [0002] Cutting tools such as drills, end mills, milling cutters, planers, tapping taps (盛上げタップ), roll forming tools, stamping dies and other non-cutting tools, etc., or friction parts that require wear resistance, etc. Among various tool components, it has been proposed to improve wear resistance and durability by coating a hard coating on the surface of a base material made of cemented carbide or high-speed tool steel. [0003] In response to this, Patent Do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06B23B27/14B23B51/00B23C5/16
CPCC23C14/024C23C14/325C23C28/04C23C28/044C23C28/42C23C28/44C23C30/005C23C14/0641H01J37/32055B23B2228/10B23C2228/10B23B51/00B23C5/16B23B27/148B23B2228/08
Inventor 樱井正俊王媺杉田博昭
Owner OSG