The market for thermal spray coatings and other advanced materials are showing a strong upward trend. Special and very hard coatings are applied for resurfacing metal parts to minimize the effects of mechanical wear, extending the “material life”. Examples are tungsten carbide coatings for corrosive low-temperature wear and nickel chromium carbides for elevated temperature wear (1000˚ C). Carbide coatings containing cobalt chrome have over 4 - 6 times the abrasive wear. Wire flame, powder and plasma arc spraying are examples of thermal spray wear coating methods, next to the well-known HVOF (High Velocity Oxygen Fuel Spraying method) which creates very high micro structure densities close to that of rough materials. All these coatings are very hard to grind and often applied to complex 3D shapes which makes it a challenge to achieve the required surface finish during the grinding process while keeping up productivity. These hard to grind materials require engineered flexible diamond abrasive solutions to keep productivity at the right pace, costs under control and servicing within expectations. KGS highly-engineered flexible diamond belts are the most efficient tools to grind and polish hard coatings on flat, concave and complex 3D shapes. KGS diamond tools for hard to grind coated geometries offer a perfect balance between cut-rate, flexibility, strength, surface finish and high productivity. Flexible diamond tools are easier to use, require less operators’ skills and are more sustainable than other abrasives, resulting in a more consistent and predictable result. PRODUCT AVAILABILITY • In grits 50 to 3000 • Metal and resin bond • In different types of backers, strong, heavy and flexible • In dimensions up to 300mm wide and 10.000mm long APPLICATIONS For many different applications such as: • Mud rotor finishing Page: 50 • Extrusion spirals Page: 52 • Rolls and cylinders Page: 54 ENGINEERED SOLUTIONS Page 49
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