The present disclosure relates to methods and apparatuses for assembling elastic laminates that may be used to make absorbent article components. Particular aspects of the present disclosure include providing a first substrate and a second substrate, the first substrate and the second substrate, each having a width in a cross direction; providing an elastic material; elongating the activated elastic material using a spreader mechanism; and ultrasonically bonding the first substrate together with the second substrate with the elongated activated elastic material positioned between the first substrate and the second substrate using an anvil and an ultrasonic device.