Working tool for machining mineral constructional components

Abstract

A working tool for machining mineral constructional components, in particular, for machining mineral constructional components, mineral foundations, and the like with an ultrasonic tool, has a carrier body which is formed of an unalloyed hardened steel having a carbon content from 0.2% to 0.8% and which is provided with at least one cutting element.

1 . A machining working tool, comprising a carrier body formed of an unalloyed hardened steel having a carbon content from 0.2% to 0.8%; and at least one machining element provided on the carrier body.  
   
   
       2 . A working tool according to  claim 1 , wherein the carrier body is formed of an unalloyed hardened steel having a carbon content of about 0.6% (±0.1%).  
   
   
       3 . A working tool according to  claim 1 , wherein the working tool is formed as a core drilling, bit ( 11 ; 21 ) having a bit body ( 12 ; 22 ) that forms the carrier body.  
   
   
       4 . A working tool according to  claim 1 , wherein the working tool is formed as a drill ( 36 ) having a stem ( 37 ) that forms the carrier body.  
   
   
       5 . A working tool according to  claim 1 , wherein the working tool is formed as a cutting disc ( 46 ) having a disc-shaped carrier body ( 47 ).  
   
   
       6 . A working tool according to  claim 1 , wherein the working tool is formed as a grinding disc ( 56 ) having a substantially disc-shaped carrier body ( 57 ).  
   
   
       7 . A method of machining mineral constructional components and mineral foundations, with an ultrasonic tool, comprising the steps of providing a machining working tool for use with the ultrasonic tool and having a carrier body formed of an unalloyed hardened steel with a carbon content from 0.2% to 0.8%, and at least one machining element provided on the carrier body; and effecting a machining operation with the ultrasonic tool.