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TAWERS Hyper Dip Pulse

TAWERS Hyper Dip Pulse
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TAWERS HD-Pulse Process Shielding Gas Mild Steel Material Thickness Ultra Thin HD-Pulse The TAWERS welding platform is driven by a 100kHz super high frequency primary side inverter which permits a welding arc control cycle of 10 micro-seconds. This precise control capability allows the TAWERS to control in real time the welding waveform. HD-Pulse (Hyper Dip Pulse) welding process is an example which is available standard on all TAWERS models (optional waveforms also available). suitable for steel materials 3mm or thicker. HD-Pulse is designed to travel faster by using patented Dip Pulse technology and addressing the undercut issue typical with regular pulse welding process. Benefits Faster Travel Speed One of advantage of pulse welding is to stabilize the arc and reduce spatter at globular or short/arc transfer range. On the other hand, disadvantage is the limitation in travel speed. Since general pulse welding is similar of spray transfer, wire does not short between weld puddle during welding. Therefore, weld puddle does not receive additional pull from surface tension caused between welding wire and can not catch up with the torch during faster travel. HD-Pulse solves this issue by Panasonic’s patented Dip Pulse technology which has short-arc sequence in sync with each pulse out put. This sequence will help the puddle move forward achieving faster travel speed. Undercut typical pulse welding HD-Pulse at 300A, travel speed 1.3m/min HD-Pulse undercut prevention Undercut Prevention Another benefit of HD-Pulse is undercut prevention. General pulse welding is easier to cause undercut especially under faster travel speed due to its long and wide arc character. HD-Pulse designed under Dip Pulse and TAWERS technology, will tighten the arc shorter which prevents undercut. Minimal Spatter Generation Because HD-Pulse includes short-arc sequence, it does generate spatter compared with spray pulse. But TAWERS has spatter reduction technology proven with SP-MAG process and this technology is also applied to HD-Pulse minimizing spatter generation. P0004ED

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Theory Spray is a type of metal transfer which detached droplet flies through the arc to the base metal. Because wire does not short during this transfer, it generates almost no spatter. But since spray transfer is only observed at higher amperage, it can only be used for thick materials. General pulse welding is originally developed to achieve spray transfer with lower average amperage by switching weld output high and low repeatedly. This waveform will allow the droplet to detach from the wire after each pulse output (One-Pulse, One-Drop transfer). This process did achieve low spatter...

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