Wondering What Gas, Welding Wire, and Equipment I-CAR recommends for their Steel GMA (MIG) Welding Training & Certification?


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TECH TIP: SP MIG 'Hot Start': The Why & How!

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SP MIG 'Hot Start': The Why & How! The Benefits & Programming of the SP Pulse MIG Welder's Hot Start Function. Quick Overview It's no secret that welding aluminum is different than steel. One of the biggest differences is how heat is dissipated on aluminum. Steel: Heat stays confined to the area where the heat is applied. Aluminum: Heat rapidly transfers throughout the material.  This causes what is known as a " Cold Start ";  the beginning of the weld bead is weak due to not enough heat at the start causing poor penetration. To counter this we have two options:  Tail-In Method -   You start the weld outside and move in toward the weld join so that the material is pre-heated allowing proper penetration.  Hot Start function  - The cleanest way to program it and avoid the cold start. (See VIDEO below) Solution :  The SP series MIG welder's " Hot Start Function ", allows us to dial up the amper
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Proper storage for aluminum wire when not in use is KEY to making it last longer and for producing quality welds!  Aluminum  oxidizes rapidly , and this can cause issues with weld quality and overall strength of repair.  When oxidation forms on the aluminum wire it will disrupt the arc and will be nearly impossible to maintain a proper arc. ALUMINUM WIRE WILL GO BAD IF NOT STORED PROPERLY  NO MATTER HOW LITTLE IT IS USED   Although Aluminum is becoming more abundant during production, depending on the shop, Aluminum welding may not be a regular occurrence like steel is. Proper wire storage is very important when not in use, as the aluminum  oxidizes rapidly  and this can cause issues with weld quality and overall strength of repair. This is something that is often an after thought or overlooked in the shop, and blame gets placed on welder instead of looking at the wire. When Aluminum welding wire is not in use, we recommend: Remove from the weld
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