High-speed machining tool

Abstract

Object: A high speed machining component, which has been improved in wear resistance and lubricating properties, and a high speed dry machining method using the component are provided. Particularly, a high speed cutting tool and a high speed cutting method are provided. Means for solution: A halogen element is ion-implanted into a machining component having a cemented carbide as a base material, and the machining component is contacted with a workpiece at a speed of 150 m/min or higher, whereby the wear resistance and lubricating properties of the component can be improved. If the machining component has a Ti-containing coating layer, its wear resistance and lubricating properties can be improved similarly. The use of a cutting tool including such a component enables high speed dry cutting without a cutting oil. By bringing the machining component of the present invention into contact with the workpiece at a high speed, a self-lubricating film can be formed on a surface of contact of the component with the work material.

1 . A high speed machining component having a hard material as a base material, and containing at least one element selected from the group consisting of fluorine, chlorine, bromine and iodine, a concentration of the element being in a range of 0.2 mol % to 10 mol % within 1 μm from a surface of the base material.  
   
   
       2 . A high speed machining component having a hard material as a base material, having a coating layer containing Ti and C and/or N on an outside of the base material, and containing at least one element selected from the group consisting of fluorine, chlorine, bromine and iodine, a concentration of the element being in a range of 0.2 mol % to 10 mol % within 1 μm from a surface of the coating layer.  
   
   
       3 . The component according to  claim 2 , wherein the coating layer contains one or more members selected from the group consisting of TiC, TiN, TiCN and TiAlCN.  
   
   
       4 . The component according to any one of  claims 1  to  3 , wherein the at least one element selected from the group consisting of fluorine, chlorine, bromine and iodine has been added by ion implantation.  
   
   
       5 . The component according to any one of  claims 1  to  4 , wherein a concentration of Ti is in a range of 0.2 mol % to 80 mol % within 1 μm from a surface of machining component.  
   
   
       6 . The component according to any one of  claims 1  to  5 , wherein the base material is a cemented carbide.  
   
   
       7 . A high speed machining component produced by bringing the component according to any one of  claims 1  to  6  into contact with a workpiece at a speed of 150 m/min or higher.  
   
   
       8 . The component according to any one of  claims 1  to  6 , further having a self-lubricating film is a film formed by bringing the component into contact with the workpiece at a speed of 150 m/min or higher.  
   
   
       9 . The component according to  claim 8 , wherein the self-lubricating film is a film formed by bringing the component into contact with the workpiece at a speed of 150 m/min or higher.  
   
   
       10 . The component according to  claim 9 , wherein the workpiece used for formation of the self-lubricating film contains Ti in a surface layer thereof.  
   
   
       11 . The component according to any one of  claims 8  to  10 , wherein the self-lubricating film contains a Ti oxide and/or a Ti-containing compound oxide; an average valence of Ti in the oxide and/or the compound oxide is greater than 2, but less than 4; and if an amount of Ti in the self-lubricating film is calculated as TiO 2 , a mass ratio expressed as (mass of the calculated TiO 2 /mass of the self-lubricating film) is 5% or more.  
   
   
       12 . A high speed machining method including a step of bringing the component according to any one of  claims 1  to  11  into contact with an article at a relative speed of 150 m/min or higher to machine the article.  
   
   
       13 . A high speed cutting tool including the component according to any one of  claims 1  to  11 .  
   
   
       14 . The high speed cutting tool according to  claim 13  or  14 , wherein a wear width V B  of a tool flank after cutting is performed under conditions including a depth of cut of 1.0 mm, a feed rate of 0.1 mm/rev, a cutting speed of 400 m/min, and a cutting length of 500 m is 70 μm or less.  
   
   
       15 . A cutting method including a step of cutting an article by the cutting tool according to  claim 13  or  14  at a cutting speed of 150 m/min or higher without use of a cutting oil.  
   
   
       16 . A method for producing a high speed machining component, including a step of bringing the component according to any one of  claims 1  to  6  into contact with a workpiece at a speed of 150 m/min or higher.