Fundamentals of Liquid Phase Sintering Related to Selective Laser Sintering
Abstract
Liquid phase sintering is one of the underlying principles that must be
modeled and understood when the Selective Laser Sintering (SLS) process is
used. This paper describes the initial studies being conducted to measure
surface tension of metal alloys used for SLS. A low melting point solder was
used to verify the wetting balance and pendant drop techniques and equipment
for determining surface tension. The liquid-solid, liquid-vapor, and solid
vapor surface tension of 80 Sn - 20 Pb solder on mild steel was determined to
be 245, 417, and 662 dynes/cm.
Department
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