Weldable Material Combinations

Use NCT Friction Welding Services – Free your designers! Eliminate design compromise! Apply material properties where they add value to your product! This chart shows only a portion of known joinable materials & combinations and does not imply that materials not listed are not joinable.

   Friction Welding

Friction welding is a low temperature, solid state welding process producing repeatable, CNC controlled high quality weld joints. Interface temperature is raised to a plastic state level through friction by spinning one part against another, and then applying a forging force to bond the weldment.

By producing a full cross-sectional surface forging, our process yields a very high strength, low stress weld with no porosity, and, in most cases, eliminates the need for costly pre-machining. Joint strength is equal to parent material strength. Another principal advantage of friction welding is that it allows for the joining of dissimilar materials such as steel to stainless steel, aluminum to steel or copper, and a host of other combinations using various materials that are not weldable through traditional methods.

Unlike other methods, please note that our process is low temperature(plastic state versus liquified metal as per traditional welding) and has a very small heat-affected zone. Material micro-structure and most material properties are maintained as well. Only solid, internal material exists across the interface with no third alloy added. Many material combinations that are not consider weldable can be joined by our process, all without the use of fillers, or field gasses. Also, we are able to remove the flash (the plastic state material displaced during forging) while it is still soft and pliant during the process cycle even when hardenable materials are used, thus eliminating costly grinding.

Listed below are just some of the sample applications of Friction Welding.

Bimetalic Engine Valve * Brake Caliper * Steering Shaft * Conventional Tubular Prop Shaft * C.V. Joint Bell Shaft * F.W.D. Tubular Axle * Tie Rod End * Air Brake Push Pad Assembly * Universal Joint Yoke * Drive Axle Shaft * Axle Banjo Bearing * Shift Lever * Brake “S” Cam * Pinion Shaft * Chain Saw Clutch Drum * Track Roller * Turbine Shaft * Sprocket Hub * Diesel Injector * Helicopter Rotor Shaft * Projectile * Landing Gear Strut * Twist Drill * Profile Cutter * Lathe Spindle Blank * Drill Pipe * Sucker Rod * Gear Hub * Cluster Gear * Rock Drill Piston Blank * Valve Body * Eccentric Shaft *

 The table below illustrates the capacities of each size friction welding machine.