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Coated Cutting Tools

一种涂层切削工具、涂层的技术，应用在涂层切削工具领域，能够解决机械性能降低等问题，达到改进温度抗性、粗糙度降低、改进性能的效果

Active Publication Date: 2019-12-17
SECO TOOLS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Upon further aging, c-AlN transforms into the thermodynamically stable hexagonal wurtzite B4 structured h-AlN, resulting in a dual-phase structure comprising c-TiN and h-AlN with reduced mechanical properties

Method used

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  • Coated Cutting Tools
  • Coated Cutting Tools
  • Coated Cutting Tools

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A grade A cemented carbide insert with ISO geometry CNMG120408 and composition WC / Co-95 / 5% by weight was used as body 1 for layer deposition by cathodic arc evaporation.

[0068] Before deposition, the blades were cleaned in an ultrasonic bath of alkaline solution and alcohol. Vent the system to a pressure below 2.0x10 -3 Pa, and then the blade fixed on the rotating fixture was cleaned by Ar ion sputtering.

[0069] Pure N at 4.5Pa 2 Atmosphere, -25V bias, about 500°C growth temperature and 150A evaporation current, the single (Ti 1-x Al x )N z layer (where 0≤x<0.6 and 0.9≤z≤1.1) consists of a first (Ti,Al)-based nitride subcoating 2 deposited directly on the WC:Co host from the (Ti,Al) composite cathode up to the subcoating The total coating thickness was about 0.5 μm, and the composition of the cathode was chosen such that the desired coating composition was produced (see Table 1).

[0070] The sub-coating 3 of the second (Ti,Al)-based nitride is a laminated str...

Embodiment 2

[0077] In Example 1 , grade B cemented carbide inserts with ISO geometry TPUN 160308 and composition WC / Co - 96 / 4% by weight were also deposited with the coating metal composition as shown in Table 3.

[0078] table 3

[0079]

Embodiment 3

[0081]In Example 1, a grade C cemented carbide insert with ISO geometry XOMX120408TR-ME12 and composition WC / Co - 87 / 13% by weight was also deposited with the coating metal composition as shown in Table 4.

[0082] Table 4

[0083]

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Abstract

This application involves a coating cutting tool.Specifically, this application involves a coating cutting tool, which includes the main body (1) and the hard and wear -resistant PVD coating on the subject (4).Ceramics, poly crystal diamonds or polycrystalline cubes of boron boron boron boron, and the coating contains the sub -coating (2) and the second (TI, Al) base nitride of the first (Ti, Al) base nitrideSub -coating (3), the sub -coating of the first (Ti, AL) base nitrogen is a single layer, and the sub -coating of the second (Ti, AL) baseThe sub -coating of the first (Ti, Al) basin (2) contains (TI 1‑x AL x ) N z Layer, where 0.1 <x <0.4, 0.6 <z <1.2, and the sub -coating of the second (Ti, Al) base (3) contains (3) 1‑x1‑ y1 AL x1 CR y1 ) N z1 Floor, 0.5

Description

technical field [0001] The present invention relates to a coated cutting tool for chip forming metal machining, comprising a body and a coating, for metal cutting applications such as steel, cast iron, superalloys that produce high tool temperatures in combination with controlled machined surface roughness , Stainless steel and hardened steel machining. The coating comprising two sub-coatings is based on (Ti,Al)N deposited by means of physical vapor deposition (PVD). Background technique [0002] Since the mid-1980's, efforts have been made to improve tool coating properties such as wear resistance and performance. At the time, it was customary to coat cutting tools with TiN. However, due to its relatively poor oxidation resistance at high temperatures, the alloying of Al in (Ti,Al)N was suggested and carried out in the mid-1980s with good results. [0003] Currently, (Ti,Al)N-based coatings are among the most common hard and protective coating materials used in metal cut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B27/00C23C14/06C23C14/32
CPCB23B27/00C23C14/0641C23C14/325B23B2228/10B23B2228/08B23B51/00C23C28/044C23C28/42C04B41/89C04B41/009C04B41/52B23B2222/16B23B2222/28B23B2224/08B23B2224/32B23B2224/36B23B2226/125B23B2226/18B23B2226/315B23B2228/105C04B35/5831C04B41/4529C04B41/5063C04B41/5068C04B41/5062C04B41/526B23B27/14B23C5/16C23C14/0635C23C14/0664C23C30/005B23C2228/08B23B27/148
Inventor 乔恩·安德森马茨·约翰松约埃萨尔斯特凡·拉松
Owner SECO TOOLS AB