Slotting cutter

Abstract

A slotting cutter and a method for constructing the slotting cutter. The slotting cutter is structurally divided into two portions, a central adapter portion and a cutter portion. The central adapter portion is a disk with an F-type or S-type adapter. The cutter portion is an annular ring provided with cutting insert receiving pockets, or cartridge receiving pockets. The cutter portion and a body portion are manufactured separately and combined to form the slotting cutter by a heat shrinkage method.

1 . A slotting cutter comprising a cutter portion affixed to a body portion; 
 the body portion comprising a disk having an outer peripheral surface with a first diameter and a central portion provided with an adapter;    the cutter portion comprising an annular ring having an inner surface with a second diameter and an outer portion provided with recesses;    the cutter portion being formed of a -material having thermal characteristics such that the application of heat thereto causes thermal expansion thereof, thus allowing the support member of the body portion to be positioned inside the cutter portion, and cooling thereof causes thermal contraction thereof, whereby the cutter portion is rigidly affixed to the body portion.    
     
     
         2 . The slotting cutter in accordance with    claim 1   , wherein the first diameter is larger than the second diameter.  
     
     
         3 . The slotting cutter in accordance with    claim 1   , wherein the slotting cutter is provided with an axial securing arrangement for ensuring that the cutter portion is secured against axial movement relative to the body portion.  
     
     
         4 . The slotting cutter in accordance with    claim 3   , wherein the axial securing arrangement comprises at least two countersunk through bores extending from the front face of the support member to the outer peripheral surface thereof that mate, when the body portion is positioned inside the heated cutting portion, with at least two depressions provided on the inner surface of the cutter portion and countersunk head screws screwed into the at least two countersunk through bores and engaging a rear section of the at least two depressions.  
     
     
         5 . The slotting cutter in accordance with    claim 4   , wherein each countersunk through bore has a longitudinal axis that makes an acute angle α with a normal to the front face of the support member.  
     
     
         6 . The slotting cutter in accordance with    claim 1   , wherein the slotting cutter is provided with a rotational securing arrangement for ensuring that the cutter portion is secured against rotational movement relative to the body portion.  
     
     
         7 . The slotting cutter in accordance with    claim 6   , wherein the rotational securing arrangement comprises a protrusion protruding from the outer peripheral surface of the support member, which protrusion engaging an indent on the inner surface of the cutter portion.  
     
     
         8 . The slotting cutter in accordance with    claim 1   , wherein the recesses are insert receiving pockets.  
     
     
         9 . The slotting cutter in accordance with    claim 1   , wherein the recesses are cartridge receiving pockets for receiving cutting insert receiving cartridges.  
     
     
         10 . The slotting cutter in accordance with    claim 1   , wherein the slotting cutter is provided with right-hand cutting insert receiving cartridges.  
     
     
         11 . The slotting cutter in accordance with    claim 1   , wherein the slotting cutter is provided with left-hand cutting insert receiving cartridges.  
     
     
         12 . The slotting cutter in accordance with    claim 1   , wherein the slotting cutter is provided with both left-handed and right-hand cutting insert receiving cartridges.  
     
     
         13 . The slotting cutter in accordance with    claim 1   , wherein the adapter of the slotting cutter is an S-Type adapter.  
     
     
         14 . The slotting cutter in accordance with    claim 1   , wherein, the adapter of the slotting cutter is an F-Type adapter.  
     
     
         15 . A method for constructing a slotting cutter comprising the steps of: 
 providing a body portion comprising a disk having an outer peripheral surface with a first diameter and a central portion provided with an adapter;    providing a cutter portion comprising an annular ring having an inner surface with a second diameter and an outer portion provided with recesses, the cutter portion being formed of a material having thermal characteristics such that the application of heat thereto causes thermal expansion thereof; and    affixing the cutter portion to the central body portion by:    applying heat to the to the cutter portion;    positioning the body portion inside the heated cutter portion; and    allowing the cutter portion to cool, thereby causing thermal contraction thereof, whereby the cutter portion becomes rigidly affixed to the body portion.    
     
     
         16 . The method in accordance with    claim 15   , wherein the first diameter is larger than the second diameter.  
     
     
         17 . The method in accordance with    claim 15   , wherein the slotting cutter is provided with an axial securing arrangement for ensuring that the cutter portion is secured against axial movement relative to the body portion.  
     
     
         18 . The method in accordance with    claim 17   , wherein the axial securing arrangement comprises at least two countersunk through bores extending from the front face of the support member to the outer peripheral surface thereof that mate, when the body portion is positioned inside the heated cutter portion, with at least two depressions provided on the inner surface of the cutter portion and countersunk head screws screwed into the at least two countersunk through bores and engaging a rear section of the at least two depressions.  
     
     
         19 . The method in accordance with    claim 18   , wherein each countersunk through bore has a longitudinal axis that makes an acute angle α with a normal to the front face of the support member.  
     
     
         20 . The method in accordance with    claim 15   , wherein the slotting cutter is provided with a rotational securing arrangement for ensuring that the cutter portion is secured against rotational movement relative to the body portion.  
     
     
         21 . The method in accordance with    claim 20   , wherein the rotational securing arrangement comprises a protrusion protruding from the outer peripheral surface of the support member, which protrusion engaging an indent on the inner surface of the cutter portion.  
     
     
         22 . The method in accordance with    claim 15   , wherein the recesses are insert receiving pockets.  
     
     
         23 . The method in accordance with    claim 15   , wherein the recesses are cartridge receiving pockets for receiving cutting insert receiving cartridges.  
     
     
         24 . The method in accordance with    claim 15   , wherein the slotting cutter is provided with right-hand cutting insert receiving cartridges.  
     
     
         25 . The method in accordance with    claim 15   , wherein the slotting cutter is provided with left-hand cutting insert receiving cartridges.  
     
     
         26 . The method in accordance with    claim 15   , wherein the slotting cutter is provided with both left-handed and right-hand cutting insert receiving cartridges.  
     
     
         27 . The method in accordance with    claim 15   , wherein the adapter of the slotting cutter is an S-Type adapter.  
     
     
         28 . The method in accordance with    claim 15   , wherein, the adapter of the slotting cutter is an F-Type adapter.