Abstract
The conditions for the cast-on technique for pure titanium was examined. Different heating and mold temperatures was settled to measuring the separating strength between the primary and secondary castings. EPMA observation and X-ray diffractions was carried out to clarify the mechanism of cast-on technique. Separating strength tended to increase as the molding temperature was increased with 700℃ heating temperature. Molding temperature gave any positive influence except that heating temperature. Greater separating strength was measured with the mold temperarture over 300℃ at the 700℃ heating temperature. Cast-on technique in pure titanium with precise fit was able to execute on the condition with 700℃ of heating and 200℃ molding temperatures.
