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What are power feed contacts make of and what use of them in EMD consumables?Power feed contacts are the mainstream products in EDM wire cut consumable, which are also one of the essential parts of the EDM accessories. What use of power feed contacts? As the name implies it use for electricity conducting. And what are power feed contacts made of ? They are made of cobalt-bonded tungsten carbide, tantalum, tungsten, cobalt or titanium class.
Tantalum, tungsten, cobalt can improve products’ hardness and strength at high temperature, strengthen thermal shock resistance and abrasion resistance, which can be used for machining cast iron and stainless steel.
Tungsten cobalt: toughness with high bending strength and good thermal conductivity, but poor heat resistance and wear resistance, which mainly used for machining cast iron and nonferrous metals.
Tungsten, titanium, cobalt categories: compared with above martial, Tungsten, titanium and cobalt categories are harder and stronger wear resistance and red hardness, Its bonding temperature is higher which lead to stronger its antioxidant capacity and at high temperature it can generates TIO2, which can reduce bonding. However, poor thermal conductivity, low engage bending strength, so it is suitable for machining ductile materials such as steel.
KENOS offer a lot of kinds and brands power feed contacts, and its quality is very high, it is durable in use. KENOS also have its own after-sell service team which can help you to solve any question about our products in 24 hours a day. If you want more information about power feed contacts, please pay attention to KENOS official website.