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This cast platinum setting has a significant and noticeable pit located on the under gallery wire as indicated by the arrow. |
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A small ball bur is used to open and round the pit and then a small platinum bead is inserted into the rounded depression. |
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After some experimenting with voltage and power level settings, 50 volts at power level 4 with the number 2 tip was used to melt the bead into the rounded depression. The contact pad was attached to the negative terminal and the weld pencil to the positive terminal. |
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The electrode was recessed about 1 millimeter into the ceramic collar and the collar was held about 1/2 millimeters away from the bead. It took about 6 pulses of energy to complete the welding. |
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These earrings have prongs for back setting gemstones. In the process of setting, two of the 4 prongs cracked. The cracked area is indicated by the arrows. |
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The prongs were reattached using the ABI Mini Pulse III set on power level 5 and 45 volts. The tip was held of the welding pencil about 1/2 millimeters away from the cracked area. |
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The cracked prongs were repaired with little or no deformation of the prongs shape. |
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To further test the parameters of the ABI Mini Pulse Arc III, 18 karat yellow gold Omega clips were selected for welding of the rivet wire. |
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For this procedure, the #1 tip was used and a power level of 5 and 50 volts. The rivet wires formed a smooth nice weld. The welding process did not anneal or tarnish the findings during the procedure. |
