An ultrasonic welding assembly having an ultrasonic horn and an anvil having first, second, and third plate portions is provided. The third plate portion is coupled between the first and second plate portions. The first plate portion has a first knurled region on a first side disposed proximate to the ultrasonic horn, and the second plate portion has a second knurled region on a second side. The third plate portion has a first aperture extending therethrough. The assembly includes a bracket that receives the second side of the anvil for holding the anvil thereon. The bracket has a second aperture that aligns with the first aperture, such that a coupling member extending through the first and second apertures removably couples the anvil to the bracket.