Coated cutting tool and method for manufacturing the same

A cutting tool and coating technology, applied in the direction of manufacturing tools, metal material coating processes, devices for coating liquids on surfaces, etc.
CN104870686AInactive Publication Date: 2015-08-26SANDVIK INTELLECTUAL PROPERTY AB
6 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SANDVIK INTELLECTUAL PROPERTY AB
Publication Date
2015-08-26
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention provides a coated cutting tool comprising a substrate with a rake side, a clearance side and a cutting edge, and a coating comprising a first layer and a second layer where the second layer comprises a sandwich structure consisting of an inner layer, an intermediate layer and an outer layer, wherein the inner layer is exposed through an opening in the outer layer and said opening extends over at least a portion of the width of the cutting edge. Thereby a double layer is provided in critical areas whereas a single layer is provided in other areas. Preferably the double oxide layer is an aluminum oxide layer. A method for manufacturing the coated cutting tool is also provided.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to coated cutting tools made of ceramics, cermets, cemented carbide, polycrystalline diamond, cubic boron nitride or high speed steel, suitable for turning, milling, drilling or other cuttings Forming (chip forming) machining method. Background technique

[0002] Cutting tools made of ceramics, cermets or cemented carbides are often coated with hard coatings to improve wear resistance and cutting performance. The coatings are often optimized for different applications. This optimization is often based on the prevailing wear mechanisms for a particular application. For example, aluminum oxide is known to improve crater wear resistance on the rake side, and different refractory metal nitrides, carbides and carbonitrides such as titanium carbonitride are known to improve Wear resistance of the clearance side. By forming coatings comprising different layers with different properties, the wear resistance on different parts ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More