HOW TO MIG WELD: PREPARING AND WELDING BUTT JOINTS

170 Amp-DC, 240 Volt, MIG Flux Cored Welder

If you’re new to welding and don’t plan on joining the Olympic Golden Gate Bridge Repair Team right away, the 170 Amp-DC, 240 Volt, MIG/Flux Cored Welder (item #: 68885) from Harbor Freight Tools is the ideal welder for you. The hassle-free welder comes set up for flux core arc welding and only requires adding shielding gas with other necessary components for full MIG welding applications. The MIG flux wire welder features constant voltage, thermal overload protection and a welding cable with gun. Note: a 240-volt outlet is required.

There are a myriad of projects you can perform with this welder—and first learning some basic joints will put you well onto your way to venerable welding mastery. Today, we’ll focus on the basic butt joint. Stop snickering. This type of joint is best for joining two flat pieces of metal together to form a larger piece. Simple but effective. Below, we found these two videos that cover how to prepare your work pieces for a butt joint using an angle grinder and how to weld a butt joint using a MIG welder.

Please be sure to exercise all safety precautions and utilize all necessary safety equipment, including a welding helmet, before welding.

Videos:

How to MIG Weld : How to Prepare a Butt Joint for a MIG Welder

How to MIG Weld : How to MIG Weld a Butt Joint