COMPOSITE BEAM GENERATOR AND POWDER MELTING OR SINTERING METHOD USING THE SAME

摘要

This disclosure provides a composite beam generator and a method of performing powder melting or sintering in additive manufacturing process using the same. The composite beam generator comprises: a beam splitter for splitting a beam into a first directed beam and a second directed beam; a beam shaper for shaping a transverse energy distribution profile of the second directed beam to non-circular; at least one beam delivery unit for guiding the first directed beam or the second directed beam; and a beam combiner for receiving the first directed beam and the second directed beam, and respectively generating a first output beam and a second output beam, and combining them into the composite beam.

主权项

1. A composite beam generator for performing powder melting or sintering in additive manufacturing process, comprising:
a first directed beam having a first transverse energy distribution profile for melting or sintering a powder; a second directed beam having a second transverse energy distribution profile of non-circular for adjusting the temperature variation of the melted powder to control the solidification; and a beam combiner for receiving the first directed beam and the second directed beam, and combining them into the composite beam.