CONSUMABLES

 
    The majority of ‘Hard Turning' applications require the removal of what used to be considered a grinding
    allowance. This commonly ranges from 0.1 - 0.5 mm. In order to reduce the cost of ‘Hard Turning’,
    David Richards have developed 3 products:-

 

    DOUBLE EDGE (DE) PRODUCTS

    In order to provide strength to the cutting edge, even where very light cuts are required, the best performance is
    achieved by Negative Rake cutting tool inserts. This type of geometry enables David Richards to produce an insert
    with PCBN brazed to the corner of the base hard metal insert, extending from top to bottom. In this way two cutting
    edges can be produced for the material cost of one. Supplied from stock ‘DE’ style cutting tool inserts are available in
    Grades DR-50, DR-80 and DR-450 with radius sizes from 0.2 - 1.2 mm.

 
    Typical Example:- CNMA 120404T DE DR-50
 
    Availability:-
 
    CNMA 1204**
    DNMA 1504**, DNMA 1506**, DNMA 1104 **
    SNMA 1204**
    SNUN 1204**
    TNMA 1103**, TNMA 1604**
    TNUN 1603**, TNUN 1604**, TNUN 1103 **
    VNMA 1604**

  CONSUMABLE EDGE (QE) PRODUCTS
    For more information about this product, please contact David Richards, they will be more than willing to talk
    to you about this product and its suitability to your requirements
    Typical Example:- DNMA 150408T QE DR-50
 
    Availability:-
 
    CNMA 1204**
    DNMA 1504**

  CONSUMABLE EDGE (CE) PRODUCTS
    If negative geometry or ‘Double Edge’ style cutting tool inserts are not suitable for the application, single side inserts
    are available with a cutting edge of 1.25 mm. This product style incorporates positive geometry inserts commonly
    used in standard boring bars and smaller machine tools. Supplied from stock these products are available in Grades
    DR-50, DR-80 and DR-450 with radius sizes from 0.2 - 1.6 mm.

 
 
   Typical Example:- CCMW 09T304T CE DR-50
 
    Availability:-
 
    CCMW 1204**, CCMW 09T3**, CCMW 0602**
    CPMW 09T3**, CPMW 0602**
    DCMW 11T3**, DCMW 0702**
    EPMW 08M3**, EPMW 0602**, EPMW 0402**
    SPUN 1203**, SPUN 0903**
    TCMW 16T3**, TCMW 1102**, TCMW 0902**
    TPUN 1603**, TPUN 1103**
    VBMW 1604**, VCMW 1604**, VCMW 1103**

  

      

    Neither “DE or CE” products are intended to be refurbished, but with careful use and tool changing     before catastrophic  failure, a limited number of regrinds’ can be performed.

 

 

 

 

© David Richards Engineering  2008