Related Products: Brazing rod, Flux, Grinding wheels
Cutting and Wear’s range of composite rod has been developed over 40 years and is considered by many users to be the best in the world. Our unique method of production has been evolved over the years in pace with developments in tungsten carbide technology. Cutting and Wear’s ISO 9000 Quality Assurance system ensures customers are provided with a product to meet their challenging demands down hole.
Cutting Grades (Crushed Sintered Tungsten Carbide)
The majority of Cutting and Wear’s production of composite rod is cutting grades, a particularly demanding application requiring high quality metal cutting grades of tungsten carbide. Our unique manufacturing process crushes and grades the tungesten carbide to produce uniform sharp angular chunky fragments. These are then made up into a rod using a high tensile brazing alloy in a unique process ensuring complete wetting and uniform distribution of tungsten carbide through the rod.
The ratio of tungsten carbide to brazing alloy is tailored to suit the size of rod to optimize “laying” typically 60-70% tungsten carbide.
Specialty Cutting Grades
Cutting and Wear have, over the last few years, developed special “high performance” cutting composite rod using purpose made pieces of tungsten carbide shaped to optimum cutting performance and manufactured from a steel cutting grade of tungsten carbide (CW6), developed and proven originally on the North Sea in long section milling applications.
The rods are suitable for applications where performance is critical and the application doesn’t justify engineering required to lay inserts, but the guaranteed performance of CW6 is required. The rods can be used in crucial areas of tools reinforcing standard composite rod.
Sharkstooth
The Sharkstooth rod is designed for heavy duty applications. The tungsten carbide is a tetrahedral shape giving sharp aggressive cutting edges with high strength and is available in one size equivalent to 5/16 (8mm) mesh size.
Starcutt
The Starcutt rod is designed for lighter duty applications, the tungsten carbide has 12 sharp cutting points and is equivalent to 1/4 (6.4mm) mesh size.
Wear Grades
Composite Rod used for wear applications is manufactured from tungsten carbide processed to produce rounded fragments. A range of sizes, (the largest fragment size denotes the mesh size of the rod), are then blended to optimize packing density when laid and laying characteristics when combined with high strength nickel bronze brazing alloy (100,000 PSI).
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Cutting
Cutting grades are available in rod sizes from 250gm to 750gm, to suit grain size and job size. The tungsten carbide is processed to produce sharp chunky grains of metal cutting tungsten carbide. A minimum of matrix is added, but sufficient to ensure 100% wetting of the carbide, and to provide support for the deposited tungsten carbide.
Wear
Wear grades are available in rod sizes from 300gm to 1000gm. The 300gm is ideal for infilling between inserts on stabiliser blades and the 1000gm is more suitable for depositing larger areas. The tungsten carbide is processed to produce rounded grains. A mixture of different sizes is then blended together (the mesh size denoting the largest grain size) to obtain optimum packing of the tungsten carbide grains. The ratio of carbide and matrix is chosen to produce rod that will flow, with no excess matrix.