SUNSTONE PicoDC - WELD LENGTH; Common Electrode Types; Thermocompression; Parallel Adjustable Gap

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Users Guide
Picó
WELD LENGTH
Some applications require longer weld times than others to achieve good welds. Keep in mind that the longer
the weld lasts, the larger the heat aected zone will become. Weld length plays an important role in Thermo-
compression welding because the electrode tip must remain heated long enough for the coating and wire to
melt.
Common Electrode Types
Thermocompression
Thermocompression electrodes are typically used to weld magnet wires or other coated wires. Thermocom-
pression electrodes typically have an 1/8” diameter shaft body; dierent tip sizes/shapes can be available to
cater to various applications. Larger tips require more energy to heat suciently while smaller tips can be more
fragile and require less force.
Parallel Adjustable Gap
Parallel adjustable gap electrodes can be used to weld thin foils and strips and oer exibility in gap distance,
also allowing for a step conguration if required. They are available with a variety of tip sizes and come in Glid-
cop® or molybdenum.
Fixed Gap
Fixed gap electrodes can be used for similar welding applications to the adjustable gap but have the advantage
of easily maintaining the exact same gap for every weld with no need to adjust the gap. They have a smaller gap
that can often be achieved by the adjustable gap electrodes (but cannot be used for step weld congurations).
They are available in molybdenum.
Opposed
The opposed conguration is ideal for cross-wire welds and welds that oer access to both top and bottom of
the material. Electrodes come in Glidcop, Molybdenum, and Tungsten, with a variety of tip shapes.
Electrode Tip Ratings
Dierent electrode tip sizes can handle dierent amounts of force. Use the following as a guide:
• .01” x .01” – 40-1000 grams
• .015” x .025” – 125-1500 grams
• Anything larger – 400-2000 grams