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IndustryArena Forum > Manufacturing Processes > Drilling > Why use Carbide drill bits
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  1. #1
    Join Date
    Aug 2010
    Posts
    54

    Why use Carbide drill bits

    CARBIDE DRILL BITS

    Carbide drill bits are resistant to abrasion, making them better used for drilling into hard metals. They also stay sharp for longer then steel, HSS, or titanium bits and are effective for drilling tile and masonry.
    Drill Bits are sometimes confused with End Mills, But they possess key differences. Drill bits are designed to plunge directly into the material, cutting axially and creating cylindrical holes. End mills are typically used for horizontal carving and cut laterally.


    DRILL BIT CHARACTERISTICS


    • The Flute Length, or functional length, determines how deep a hole can be drilled.
    • The Overall Length (OAL) is the length of the entire bit. (Shank + flute)
    • The Shank is the end of a drill bit grasped by the chuck of a drill machine. Round shanks center more reliably than hex, but hex shanks are less likely to slip and are better for drilling hard materials.
    • The Drill Diameter refers to the diameter of the cut, and determines the drill hole size.
    • The point angle or the angle formed at the tip of the bit is determined by the material the bit will be operating in. Harder materials require a larger point angle, and softer materials require a sharper angle. The correct point angle for the hardness of the material influences wandering, chatter, hole shape, and wear rate.


    BENEFITS OF USING CARBIDE

    Carbide tipped tools are more efficient and cost-effective compared to high-speed tools because they retain their cutting edge hardness at high machining temperatures which are generated by high cutting speeds. Carbide has a high melting point at 2,870°C(5,200°F).
    Tungsten carbide drill bits are also known for its hardness. Tungsten falls between 8.5 and 9 on Moh’s hardness scale (While diamonds have a hardness of 10).
    Carbide is a solid material for use in drilling due to its hardness factor, as a result of this, carbide provides a longer-lasting, stable work life.
    By utilizing carbide material, industries can keep their tools on line in the field for longer periods of time preventing down-time and loss of time spent on a project.


    Carbide and Diamond Tooling Drill Bits

    At Carbide and Diamond tooling, we deliver Coolant fed tools, along with non-coolant fed tools. Our superior lineup of solid carbide and carbide tipped drills and reamers deliver your lowest cost per hole option in the industry.
    Standards include:
    • Extensive selection of diameter/length combinations
    • Straight and angled flute designs
    • A variety of coatings matched to your application
    • Specials made to print

  2. #2

    Re: Why use Carbide drill bits

    what is grade of tungsten carbide rods you are using?

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