How to stick weld is the foundational skill for entering the world of arc welding, offering a versatile and powerful method to join metals. This guide breaks down the entire process, from selecting your equipment to executing a clean, strong bead. You’ll learn the critical safety steps, machine settings, and rod handling techniques that separate a good weld from a bad one.
Whether you’re a DIY enthusiast or starting a new trade, mastering stick welding opens up countless project possibilities.
Simply put, stick welding is an arc welding process that uses a consumable electrode coated in flux to create an electric arc, melting both the electrode and the base metal to form a weld pool. It is prized for its simplicity, portability, and ability to work on dirty or rusty metals.
Key Takeaways
- Stick welding requires a simple setup: a power source (AC/DC welder), electrode holder, ground clamp, and safety gear.
- Correctly setting your amperage based on rod diameter and metal thickness is the most critical first step for a good weld.
- Striking an arc, maintaining a consistent arc length, and using the right travel angle are core techniques to practice.
- Always prioritize safety by wearing a proper helmet, gloves, and fire-resistant clothing to protect from sparks and UV light.
- Cleaning your weld with a chipping hammer and wire brush afterward is essential for inspecting quality and appearance.
What Is Stick Welding and How Does It Work?
Stick welding, formally known as Shielded Metal Arc Welding (SMAW), is one of the oldest and most reliable welding processes. It uses an electric current to form an arc between a covered metal electrode and the workpiece. The intense heat of this arc, which can exceed 6,000 degrees Fahrenheit, melts both the tip of the electrode and the base metal, creating a molten weld pool.
The magic happens with the electrode’s flux coating. As it burns, it produces a shield of gas that protects the weld pool from atmospheric contamination like oxygen and nitrogen. This gas shield prevents porosity (tiny holes) and ensures a strong, clean weld. The flux also leaves behind a layer of slag over the cooling weld bead, which must be chipped away.
| Key Component | Function |
|---|---|
| Electrode | The consumable filler metal rod that melts into the weld. |
| Flux Coating | Produces protective gas and forms slag over the weld. |
| Power Source | Provides the electricity (AC or DC) to sustain the arc. |
| Electrode Holder | Insulated clamp that holds the electrode and conducts current. |
| Ground Clamp | Completes the electrical circuit by attaching to the workpiece. |
This process is incredibly versatile. It can be used on mild steel, stainless steel, cast iron, and even some non-ferrous metals with specialized electrodes. Its ability to handle dirty, rusty, or painted surfaces makes it a favorite for repair work, construction, and outdoor projects where perfect cleanliness isn’t possible.
What Safety Gear Do You Absolutely Need?
Before you even plug in your welder, you must suit up. Stick welding produces extreme ultraviolet (UV) and infrared (IR) light, flying sparks, and molten spatter. Proper Personal Protective Equipment (PPE) isn’t optional—it’s mandatory. The arc’s light is so intense it can cause severe sunburn on exposed skin in seconds, a condition known as “arc flash.”
Your most important piece of gear is the welding helmet. It must have the correct shade of filter lens for stick welding, typically shade #10 to #13 depending on amperage. An auto-darkening helmet is highly recommended for beginners as it allows you to see clearly while positioning the electrode before the arc starts. You’ll also need safety glasses with side shields to wear under the helmet for additional eye protection.
Warning: Never look at the arc without a proper welding helmet. The intense UV radiation can cause permanent eye damage called “arc eye” or photokeratitis, which is extremely painful.
Here is your essential safety checklist:
- Auto-Darkening Welding Helmet: With a proper shade (DIN 10-13) and clear viewing area.
- Welding Gloves: Thick leather gloves (not cotton) to protect from heat, sparks, and UV rays.
- Fire-Resistant Jacket and Pants: Made from leather or treated cotton. Avoid synthetic fabrics like nylon, which can melt to your skin.
- Steel-Toed Boots: To protect feet from falling heavy metal and sparks.
- Ear Protection: Earplugs or earmuffs to dampen the loud crackling sound of the arc.
- Respirator or Welding Mask with Respirator: Especially when welding on galvanized metal or in poorly ventilated areas, to avoid inhaling toxic fumes.
Always weld in a well-ventilated area or use a fume extraction system. Check your surroundings for flammable materials—sparks can travel over 30 feet. A fire extinguisher should always be within arm’s reach.
How to Set Up Your Welding Machine and Electrodes
Proper setup is the foundation of a successful weld. Your goal is to match the machine’s output to the electrode you’re using and the thickness of the metal you’re welding. The most common beginner electrode is the E6013 for general mild steel, and the E7018 for stronger, structural welds. The “E” stands for electrode, the first two numbers indicate tensile strength (60 = 60,000 psi, 70 = 70,000 psi), and the last two digits specify the type of flux coating and recommended current position.
To set the amperage, you need to know your electrode’s diameter. A common rule of thumb is 1 amp per .001″ of electrode diameter. For example, a 1/8″ (0.125″) E6013 electrode typically runs well between 75-125 amps. Most electrodes have the recommended amperage range printed right on the packaging. Always start at the lower end of the range and increase if needed.
Tip: Use a test piece of scrap metal the same thickness as your project to dial in your settings before starting on the real thing. This saves material and ensures a quality weld.
Follow these steps to connect your equipment:
- Connect the Ground Clamp: Attach it directly to the workpiece or your welding table. A clean, tight connection is vital for a stable arc. Paint or rust can cause a poor connection, so grind a small bare metal spot if necessary.
- Insert the Electrode: Open the electrode holder’s jaws and insert the bare end of the electrode. It should be held firmly at about a 20-degree angle from the holder’s axis.
- Set Polarity: Most modern welders can run on AC, DCEN (Direct Current Electrode Negative), or DCEP (Direct Current Electrode Positive). Check your electrode’s packaging. E6013 runs on AC or DCEP. E7018 runs best on DCEP.
- Dial in Amperage: Set the amperage knob to the lower-middle of the electrode’s recommended range. You can adjust slightly once you start welding.
Ensure your workspace is clean and organized. Clamp your workpiece securely so it doesn’t move. A clean, dry surface free of oil, grease, paint, and rust will produce a much better weld.
How to Strike an Arc and Maintain a Consistent Bead
This is the moment that intimidates most beginners. Striking the arc is like lighting a match—you need a quick, confident motion. There are two common methods: the scratch start and the tap start. For the scratch start, drag the electrode tip across the metal surface like a matchstick. Once you see sparks and the arc lights, lift slightly to the correct arc length. The tap start involves a direct, firm tap straight down onto the metal, followed by a slight lift.
Once the arc is lit, maintaining the correct arc length is everything. Arc length is the distance between the tip of the electrode and the weld pool. A good rule is to keep an arc length equal to the diameter of the electrode’s metal core (not the flux). If it’s too long, you’ll hear a loud, sputtering sound and get a wide, flat, porous bead. If it’s too short, the electrode will stick to the workpiece, and you’ll hear a smooth, quiet hum. You want a steady, crackling “frying bacon” sound.
Your travel angle and speed determine the shape of your weld bead. For a flat position (the easiest to learn), hold the electrode at a 10-20 degree angle from perpendicular in the direction of travel. Move at a steady pace, watching the molten puddle form just behind the arc. You should be able to see the edges of the puddle wetting into the base metal on both sides. Moving too fast causes a thin, cold bead. Moving too slow causes excessive heat buildup, burn-through, and a wide, tall bead.
Important: When the electrode stub gets too short to hold (about 2 inches), stop welding. you stopped. Then, tie back into the previous weld crater with a brief pause.
| Problem | Likely Cause | Solution |
|---|---|---|
| Electrode Sticks | Arc length too short, amperage too low, or dirty metal. | Use a quicker strike, slightly increase amps, clean the metal. |
| Loud Sputtering Arc | Arc length too long. | Shorten the distance between the electrode and workpiece. |
| Porosity (Holes) in Weld | Dirty metal, damp electrodes, or arc length too long. | Clean base metal thoroughly, store rods in a dry oven. |
| Weld Bead is Too Wide & Flat | Amperage too high or travel speed too slow. | Reduce amperage or increase travel speed slightly. |
How to Clean and Inspect Your Finished Weld
Your job isn’t done when the arc goes out. The final, crucial step is cleaning and inspection. The slag covering your weld is a protective shell, but it hides the quality of the bead underneath. You must remove it completely to see your work and to prevent slag inclusions in subsequent passes.
Use a chipping hammer with a pointed tip and a flat chisel end. Start by tapping firmly along the top of the slag coating. It should flake off in large pieces. For stubborn areas, use the chisel end to lift an edge and then chip it away. Be sure to wear your safety glasses and gloves during this process, as slag chips can fly off with sharp edges and considerable force.
After chipping, use a wire brush (a hand-held or drill-mounted wheel) to vigorously scrub the weld and the surrounding heat-affected zone. This removes any remaining fine slag particles and soot, revealing the shiny metal of your weld bead. A clean weld allows you to properly inspect for defects.
Run your fingertip (with a glove on) along the bead. It should be relatively smooth and consistent in width and height. Look for common defects like undercut (a groove melted into the base metal beside the weld) or overlap (the weld metal rolling over the base metal without fusing). A good weld should have a consistent ripple pattern, similar to stacked dimes, and blend smoothly into the base metal at both edges. Practice is the only way to achieve this perfect, “stacked dime” appearance consistently.
What Are Common Stick Welding Mistakes and How to Avoid Them?
Every welder starts with mistakes. Recognizing these common errors will accelerate your learning curve. One of the most frequent issues is using the wrong amperage. Amperage that is too low makes it hard to start and maintain the arc, leading to sticking and lack of fusion. Amperage that is too high causes excessive spatter, burn-through on thin metal, and a very wide, uncontrollable puddle. Always start in the recommended range and adjust based on the sound and appearance of your arc.
Another classic beginner mistake is improper rod angle and travel speed. Holding the electrode at too steep or too shallow an angle disrupts the shielding gas flow and the shape of the weld pool. Similarly, traveling too fast results in a thin, cold bead with poor penetration, while traveling too slow causes the puddle to grow too large and can burn through the metal. Practice maintaining a steady, consistent speed on scrap metal until you develop muscle memory.
Storing electrodes incorrectly is a silent weld killer. Low-hydrogen electrodes like E7018 are hygroscopic, meaning they absorb moisture from the air. Damp electrodes create hydrogen bubbles in the weld, leading to cracking. These rods must be stored in a sealed container or a specialized rod oven held at 250-300 degrees Fahrenheit. If you don’t have an oven, only take out the electrodes you will use immediately and seal the rest right back up.
Finally, neglecting joint preparation guarantees a weak weld. Simply touching two dirty, painted pieces of metal together and trying to weld them will fail. The arc has to burn through contaminants, which consumes energy, creates porosity, and prevents proper fusion. Take the time to grind or wire-brush the surfaces clean along the entire joint line. For thicker metal, beveling the edges to create a V-groove ensures the weld penetrates all the way through the joint.
Frequently Asked Questions
What is the easiest stick welding rod for beginners?
The E6013 electrode is widely considered the most forgiving and easiest for beginners. It runs on AC or DCEP, has a soft, quiet arc, and produces a bead that is easy to control and clean. It’s excellent for thin sheet metal and general-purpose mild steel projects.
The E7018 is stronger but requires more precise settings and technique.
Why does my welding rod keep sticking to the metal?
Sticking is usually caused by three things: your amperage setting is too low, your arc length is too short when striking, or the metal surface is dirty. First, try increasing your amperage by 5-10 amps. Second, practice a quicker, more confident scratch or tap to initiate the arc.
Third, ensure the spot where you’re starting is clean and free of rust or paint.
Can I use a stick welder for aluminum?
No, standard stick welding (SMAW) is not used for aluminum. Aluminum requires a very high current and a special electrode that is difficult to use. Aluminum is typically welded using TIG welding (GTAW) with a pure argon shield and a non-consumable tungsten electrode, or MIG welding (GMAW) with a spool of aluminum wire and a specialized shielding gas mixture.
What does AC mean on a stick welder?
AC stands for Alternating Current. On a stick welder, AC power switches direction 120 times per second. It’s particularly useful for welding on metals that attract magnetism, as it prevents “arc blow,” where the magnetic field pushes the arc to one side.
It’s also the recommended setting for running 6011 and some 6013 electrodes.
How do I prevent my weld from cracking after cooling?
Cracking, especially in high-strength electrodes like E7018, is often caused by hydrogen embrittlement from moisture. Use only dry, fresh electrodes from a sealed container or rod oven. Also, ensure you’re not welding on very thick, cold metal without preheating it, as the rapid cooling creates stress.
Using the correct amperage and travel speed helps create a bead that cools more evenly.
Final Thoughts
Learning how to stick weld is a rewarding journey that combines theoretical knowledge with hands-on practice. Mastering the setup, safety, and core techniques of arc striking and bead control will give you a powerful skill for countless metalworking projects. Remember, every expert welder started exactly where you are now—practice on scrap metal, analyze your results, and focus on consistency. With patience and persistence, you’ll be creating strong, clean welds in no time.
