Welding processes and features
Master 315
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Determines the point where the arc is extinguished in relation to the arc length in MMA welding. The purpose is to optimize the welding termination for each electrode type to prevent the arc from being accidentally extinguished during welding and to avoid burn marks to the weld piece when the welding is stopped.
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Adjusts short circuit dynamics (roughness) of MMA welding by changing, for example, current levels.
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Tells how long the welding arc has been on.
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The lower current level of the pulse cycle. In TIG welding, its main tasks are to cool down the weld pool and to maintain the arc.
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Direct current TIG welding process, where the polarity of the electrode is either positive or negative throughout the welding process. Negative polarity (DC-) allows high penetration, whereas positive polarity (DC+) is used only in special applications.
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Welding function that uses higher welding current at the start of the weld. After the Hot start period the current drops to normal welding current level. The values for Hot start current level and its duration are preset manually. This facilitates the start of the weld especially with aluminum materials.
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Contact current in the beginning of Lift TIG ignition.
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Ignition mode in TIG welding. In Lift TIG ignition you briefly touch the work piece with the electrode, then press the trigger and lift the electrode to a small distance from the work piece. The Lift TIG ignition must be activated in the control panel. Also known as “Touch ignition” or “Contact ignition”.
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Place to store predefined welding parameter settings. A welding machine can include a number of preset channels. Users can create new channels for their own welding jobs and modify or delete them. Makes parameter selection easier, and in some cases allows transferring settings from one welding machine to another.
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Manual arc welding process that uses a consumable electrode. The electrode is covered with flux material that protects the weld area from oxidation and contamination.
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A function which automatically decreases the welding current significantly when electrode is touching the workpiece. Can be used for avoiding MMA electrode getting too hot when it’s in contact with the workpiece.
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The higher current level of the pulse cycle. In TIG welding, its main task is to create weld pool or increase the heat of the weld pool.
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Determines how many pulse cycles is created per second (Hz).
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Determines how big part of the whole pulse cycle time is spent on pulse current.
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In pulse welding the current is pulsed between base and pulse current.
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This is a function that automatically creates a slight upslope to prevent electrode wearing caused by sudden current rises with high welding currents. This function has an effect only when the welding current is 100 A or more.
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Manual welding process that typically uses a non-consumable tungsten electrode, a separate filler material, and an inert shielding gas to protect the weld area from oxidation and contamination during the welding process. The use of a filler material is not always mandatory in TIG welding.
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A function which automatically decreases the welding current significantly when electrode is touching the workpiece. Can be used for example to avoid unwanted dilution from electrode to welded metal.
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A safety device used in welding equipment to reduce the open-circuit voltage to maintain below a certain voltage value. This reduces the risk of electric shock particularly in dangerous environments, such as closed or damp spaces. VRD may also be required by law in certain countries or regions.
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A wizard-like utility for easy selection of welding parameters. The utility walks the user step-by-step through the selection of required parameters, presenting the selections in an easily understandable way for a non-technical user. Available in MTP35X control panel in MasterTig product family.
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