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    • Friday 07 November, 2014 | RSS Feed

    Types of Router Bits

    by astech-cnctools

    Types of Router Bits

    (Ⅱ)

     

    Today, let's continue the topic yesterday:

    Types of router bits.

     

    (5)  Milling Cutter in the types of router bits:

    ①   Main application:

    a.  End milling;

    b.  To flat square mill cutters:

    More common in cleaning cnc router table and carving large flat concave-convex word;

     

    ②  Ideal materials:

     PVC boards, organic glass, wood, etc.

     

    ③   Parameters:

    a.   W1: the width in the front of cutting edge;

    b.   Common shank diameter: Φ3.175, Φ4, Φ6;

    (i)  When lettering in small size, and the cutting materials thickness is less than 10mm:

     We recommend using Φ3.175.

    (ii) Sometimes, also need to use the shank diameter changes from Φ3.175 to Φ2 or Φ1.5 in front end;

    c.  H1: blade length, the cutting material thickness should be less than H1;

    In general, H1 divides into the following kinds according to materials depth:

    12mm: cut ≤10mm depth;

    17mm: cut 15mm depth;

    22mm: cut 20mm (to PVC: use Φ3.175 more; to acrylic: use Φ4);

     

    ④   Principle:

    a.  We don't suggest the use of 22mm mill cutter when the cutting thickness is less or equal to 10mm, which may result in tools broken;

    b.  If you don't have 22mm milling cutters but have to cut 20mm depth materials,

    17mm end mill cutters can be a makeshift, which is realized by cutting step by step;

     

    All the router bits above:

    Flower cutter, Sharp cutters, Ball cutter, Straight cutter and Milling cutter are 2D cutters.

     

    (6) 3D cutters in the types of router bits:

    It includes:

    ①  Router over bit: used in rough cleaning embossment;

    ②  3D sharpen router bits: used in fine cleaning relief;

    ③  Wide-angle 3D cutter used in 3D lettering or panel veneer chamfering;

     

    ④   Odd-shaped 3D router bits:

    a.  Unlike other common cutters –

    Directly polished to various cnc bits that you needed to do for your work.

    b.  To this odd-shaped 3d router bits –

    All shapes of tool bits are welded onto this cutter with special welding technology andΦ6 shank diameter,

    c.  It directly applies to different special shaped processing, also known as "Big-head cutter";

     

    d.  Application:

    3D scrap chopper (calculate the path by "3D" function) and beveling;

    e.   Parameter:

    (i)  W1: Diameter under the tool holder;

    It randomly assign to 32mm, also with smaller diameter model to cut smaller 3D words;

    (ii) A: Half angle contained by the two sides, which is of the tool tip part;

    It randomly assign to 90°, so A sets as 45 (similar to flat end sharp cutters);

    (iii) W2: Tool tip width; Usually set as 0.1 or 0.2;

     

    (7)  Other cutters in the types of router bits:

    Such as relief cutter specially used for 3D basso-relievo, and so on;

     

    2.   Types of router bits sorted by materials:

    (1)  Alloy: mainly for wood and organic materials;

    (2)  Diamond: mainly for stone, glass, brick, etc.;   

     

    3.   Types of router bits sorted by blade:

    (1)  Single edge: semi precision processing to improve productivity & process efficiency;

    (2)  Double edge:  finish machining to reduce surface roughness;

     

     

    Besides Types of Router Bits (Ⅱ), you may also interest in:

    Router Bit Types (Ⅰ).

     

     

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