The Beginner’s Guide to
Learning about Tungsten Carbide Coatings
Tungsten Carbide (WC) is a grey fine powdered ceramic material that is extremely hard. Because of its high hardness, this material has excellent wear, abrasion, and scratch resistance. It protects the surface from damage as well as surface-based attacks such as corrosion, erosion, and fatigue. Because of its higher melting point, WC is very stable in nature. One of the most often utilized protective coatings for applications involving the treatment of surfaces for wear resistance is tungsten carbide. The use of the thermal spraying process enables coating businesses to select the best material for applications, ensuring consistent manufacturing.
What is Tungsten carbide used for? Using tungsten carbide to make machining tools is among its most significant uses. Both the material’s resistance to heat and abrasion are utilized by these instruments. They are frequently employed in processes requiring great precision or volume that would cause steel. The other important thing to note is that the hardness and wear resistance of coatings are exceptionally high. Products made of tungsten carbide with coatings have a better cutting speed than those made of tungsten carbide without coatings, which can increase production productivity. The wear resistance of tungsten carbide products with coatings is also higher when functioning at the same cutting speed as those without coatings. What is so special about tungsten carbide coatings? The volume percentage and grain size of the tungsten carbide particles essentially determine coating characteristics like tensile strength, wear resistance, and hardness. The exact qualities needed for an application can be achieved with tungsten carbide coatings by carefully regulating the amount of the tungsten carbide particles relative to cobalt and their grain size.
Another benefit of tungsten carbide coatings spray is that the powder particles receive enormous quantities of kinetic energy as a result of the tungsten carbide thermal spray coating process. These extremely dynamic particles quickly attach to the workpiece when they hit the substrate, causing their velocity to drop to zero and them to absorb all of their kinetic energy. Following particles arrive nearly simultaneously, quickly forming the coating.
Most of the time, tungsten carbide especially tungsten carbide inserts need to be coated. The wettability, hardness, and protection against high temperature, oxidation, and corrosion of the tungsten carbide can all be improved by coating. The tungsten carbide depends on the coating.
Choosing the proper coating type makes the insert selection procedure challenging. Because each application is unique, it is important to evaluate the coating techniques and the materials used in the coatings. And even if the question, How do I choose the correct insert coating? is not easily answered. The choosing procedure is made less confusing by having a solid understanding of coating methods and coating materials.
The cost of a coating directly relates to the cost of the substrate. Tungsten Carbide coatings are a premium coating in this regard. When parts have suffered irreparable damage from wear or erosion and coating is more cost-effective than buying new, these coatings are frequently preferred. In these circumstances, WC coatings are an affordable and workable answer. They are generally employed in applications where exceptional wear resistance is a need since their wear resistance outperforms their other mechanical attributes.