Patent ID: 7810699
Filing Date: 2010-10-12
Classification: B23K

Abstract:
1. A method of minimizing mechanical resonance in an assembly during formation of a vibration-welded joint therein, the method comprising: generating a set of control signals using a weld controller; converting the control signals into a substantially periodic mechanical oscillation having a predetermined variation using a converter, the mechanical oscillation having a plurality of waveform characteristics including a direction, an amplitude, a frequency, and a wavelength; and transmitting the mechanical oscillation with the predetermined variation from the converter to at least one weld head such that the mechanical oscillation with the predetermined variation always occurs in the weld head during formation of the vibration-welded joint; wherein the predetermined variation is adapted to minimize the mechanical resonance in the assembly, is provided in at least one of the plurality of waveform characteristics, and is transmitted to the at least one weld head during formation of the vibration-weld joint; and wherein the mechanical oscillation is used in conjunction with an applied pressure to thereby form the vibration-welded joint.