Alloys in Resistance Welding
End Uses
Why Brush Wellman Alloys?
Brush Wellman’s copper beryllium alloys exceed the requirements of the Resistance Welding Manufacturers Association (RWMA) for Class 3 and Class 4 alloys. Copper beryllium’s high strength, high conductivity, high elastic modulus and elevated temperature properties result in superior performance in welding applications compared to other copper alloys.
User Benefit/Solution
RWMA Class 3 requirements are best met with C17510 (Brush Alloy 3). C17510 is specified for applications that require high strength and high conductivity, such as electrode tips and welding wheels. C17510’s high strength results in a higher fatigue strength, which translates into greater cycles before failure during use. C17510’s higher elastic modulus, compared to other copper alloys, allows for better dimensional stability of the welding component during use. The higher thermal and electrical conductivity of C17510 allows components to run cooler, and consequently last longer. To the consumer these benefits result in fewer replacement parts, less down-time, better welds and better accuracy when using C17510.
RWMA Class 4 requirements are met with C17000 (Brush Alloy 165) and C17200 (Brush Alloy 25). Typically, Brush Alloy 165 is used for resistance flash welding die inserts because of its excellent wear and galling resistance, high electrical and thermal conductivity, excellent machinability and corrosion resistance. In service, it will not adhere to steel, and it does not soften or deform under heat and high pressure. The benefit to the consumer will be higher quality welds and longer die insert life. Brush Alloy 25 offers similar benefits and is often used for welding guns, and body holders of resistance welding equipment.
Components made from Brush materials are economical to acquire because of the ease with which they may be obtained or fabricated. Brush alloys are readily available worldwide from both company-owned service centers and independent distributor partners.
Technology, products, service, and value are all available worldwide from Brush Wellman Inc. and its distributors. Contact us for more information!