How to arc weld

Frank
View the video

How to arc weld

View the video
×

Project Overview

Arc welders are used to join heavy pieces of metal, such as barbecue plates or steel gates. We’ll show you how to use the arc welder safely. You’ll see how to tack your metal pieces in place and then weld them together. Learn how to remove the slag residue and finish your join. 

Continue to step-by-step instructions

Step by Step Instructions

1 Secure your metal pieces in place
2 Use tack welds to hold your material in place
3 Weld the metal pieces together
  • Step 1. Secure your metal pieces in place

    Secure the metal you are welding to your work surface. Clamp the earth lead of the arc welder to that piece of metal. Then place a welding electrode into the electrode holder. Turn the arc-welding machine on and adjust depending on the size of the electrodes you are using. 

  • Step 2. Use tack welds to hold your material in place

    Lower your helmet. Make a couple of small tack welds to make sure you get your two pieces of material in the right position.  Arc welding produces a slag residue on top of the weld join. Use the chipping hammer to get that slag off.

  • Step 3. Weld the metal pieces together

    If you are happy with your tack welds, continue welding the two pieces of metal together.  Run a bead of weld down each side of the join. Then use your chipping hammer and a wire brush to remove the slag. The metal and join will be very hot so set them aside to cool when you are finished. When the join is cool, coat it with an undercoat or rust protection to prevent rusting.

Tools and Materials

Tools

  • Arc welder
  • Chipping hammer
  • Clamp
  • Safety gear - a heavy leather apron, extinguisher, gloves, helmet, long sleeved clothing and closed boots
  • Wire brush

Materials

  • Welding electrodes
power of drills

Tools & D.I.Y. Skills Types of power drills and their uses With several power drill types on the market, it’s important to choose the right one for your D.I.Y. projects. Bunnings Tools Buyer Paul outlines the benefits and some project examples for each type of drill in your ultimate power drill guide.

garage

Tools & D.I.Y. Skills Seven handy tool storage ideas Keeping your tools safe, secure and in easy reach makes it so much easier to get your projects done. Whether you need tool storage for work or around the home, there’s a huge range of handy options in all shapes and sizes.

Person rubbing steel wool over hammer 02:42

Tools & D.I.Y. Skills How to clean rusty tools We’ll show you how to restore your rusty tools.

Hire Shop at Bunnings 03:21

Tools & D.I.Y. Skills Tips for using a floor sander Floor sanders are great for sanding and polishing timber floors and edges. We'll show you everything you need to know before hiring one.

install hinges and gass struts

Tools & D.I.Y. Skills Five cordless power tools that will make your D.I.Y. projects easier Cordless power tools offer you the flexibility and freedom to work just about anywhere. They’re portable, light weight and easy to handle. Here are our top five cordless tools that will help make your D.I.Y. dreams a reality.

Cordless Drill

Tools & D.I.Y. Skills Cordless drill buying guide The cordless drill will be the most used power tool you’ll own, so deciding which one to buy is an important decision. This guide will help you choose the cordless drill that’s right for you.

How to restore wooden furniture 03:36

Tools & D.I.Y. Skills How to restore wooden furniture If you’ve got old wooden furniture that’s seen better days, you’d be surprised how easy it is to restore it and give it a new lease of life

Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
Top of the content