A&S WELDING SUPPLIES

Welding guides

Help choosing equipment, setting up and finding welding faults.

All guides

23 guides

UNIMIG VIPER MULTI 180 beside welding practice samples
Buying advice

Welding Duty Cycle Explained: Choosing the Right Welder

Compare duty cycle at the output you actually use, then check the process, supply and cooling requirements.

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TECMEN 100LW laser welding helmet on a workshop bench
Safety guide

Laser Welding Safety: Workshop Setup, PPE and Fume Control

Plan the controlled area, laser-rated protection, extraction and operator training before bringing a laser welder into service.

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IPG LightWELD 2000 XR premium handheld laser welder displayed in a clear workshop bay
Buying advice

Laser Welders in Australia: How to Choose a Fibre Laser Welder

Compare material, thickness, power, cooling, wire feed and support alongside the requirements of a controlled laser work area.

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UNIMIG ENVY OMNI 220 welder on a workshop bench
Machine guide

UNIMIG ENVY OMNI 220 AC/DC: Features and Buying Checks

Explore the MIG, AC/DC TIG, stick and plasma functions, and decide whether one machine fits the work your workshop does.

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UNIMIG VIPER MULTI 135 and ENVY MULTI 195 welders displayed side by side
Buying advice

Best Beginner Welder Australia 2026: MIG, TIG or Multi-Process?

Choose around your first projects, material and available power, then compare the functions each machine actually includes.

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Black UNIMIG Trade and Professional welding helmets displayed side by side
Buying advice

Choosing a Welding Helmet: A Practical Buying Checklist

Start with suitable protection and shade selection, then compare visibility, fit, controls and replacement parts.

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Close view of surface pores in a weld bead
Troubleshooting

Weld Porosity: Causes, Prevention and Troubleshooting

Check surface preparation, dry consumables, shielding gas and torch setup when pinholes appear in a weld.

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TIG torch and its cup on a workshop bench
Process guide

What Is TIG Welding? Setup, Consumables and Technique

Work through tungsten selection, torch assembly, gas, machine settings and technique, with the original instructional diagrams.

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Welder in black protective gear using a MIG torch on a steel joint
Process guide

What Is MIG Welding? Setup, Wire Feed and Technique

Follow the setup from gas and polarity through drive rollers, liner, wire feed and travel technique.

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Gloved hand inspecting welding practice samples with surface pores and spatter
Troubleshooting

Weld Defects: 12 Common Problems and How to Troubleshoot Them

Find the symptom first, then work through its likely causes and the checks that can help prevent it.

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17-series conventional TIG collet body with gas holes beside a mesh gas lens
Consumables guide

TIG Collet Body vs Gas Lens: Differences and Selection

Compare how a conventional collet body and a gas lens distribute shielding gas, then check torch and tungsten compatibility.

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Gloved hand inserting a liner into a disconnected MIG torch connector
Maintenance guide

How to Change a MIG Torch Liner: Steel and Teflon Liners

Match the liner to the wire and torch, keep the lead straight, and follow the illustrated replacement sequence.

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Welding helmet with powered air respirator and breathing hose
Equipment guide

Welding Helmet Features Explained: Lenses, Fit and PAPR

Understand passive and auto-darkening lenses, optical clarity, shade controls, fit and respiratory protection.

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Stick welding electrode holder and coated electrodes on a bench
Process guide

What Is Stick (MMA) Welding? The Basics for Beginners

Understand the circuit, flux-coated electrode, current and polarity before comparing common uses and limitations.

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Gloved hand inspecting a grooved MIG wire drive roller
Troubleshooting

MIG Wire Feeding Problems: A Step-by-Step Troubleshooting Guide

Check the spool, rollers, liner, contact tip and torch in sequence before assuming an electrical fault.

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Welder supporting a MIG gun with two gloved hands at a steel joint
Process guide

MIG Metal Transfer Modes: Short Circuit, Globular, Spray and Pulse

Compare the transfer modes, their typical applications and the equipment and shielding-gas choices that affect them.

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Colour-coded TIG tungsten electrodes displayed for comparison
Consumables guide

TIG Tungsten Selection: Types, Colour Codes and Applications

Compare the electrode types and colour codes, then match the tungsten to the machine, current and material.

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Gas cutting attachment and plasma torch displayed on a workshop bench
Comparison guide

Oxy-Acetylene vs Plasma Cutting: Which Process Fits the Job?

Compare the material, thickness, power supply, gas requirements and portability of the two cutting processes.

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Spool gun and push-pull welding gun displayed for comparison
Comparison guide

Spool Gun vs Push-Pull Gun: Choosing for Aluminium MIG

Compare the short feed path of an onboard spool with a coordinated push-pull feeder for longer aluminium welding runs.

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Gloved hands holding a welded aluminium assembly
Process guide

How to Weld Aluminium: MIG, TIG and Troubleshooting

Start with alloy identification and preparation, then work through the MIG or TIG setup and common troubleshooting checks.

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Plasma torch resting beside two cut steel samples
Process guide

What Is Plasma Cutting? Setup, Consumables and Cut Quality

Understand the torch and consumables, then compare air supply, settings, travel speed and cut quality.

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UNIMIG RAZOR CUT 45 and CUT 80 plasma cutters displayed side by side
Buying advice

How to Choose a Plasma Cutter: Capacity, Air Supply and Torches

Compare clean-cut capacity, severance, power, air demand and torch compatibility for the material you cut most often.

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Close view of a stick weld bead with part of its slag removed
Process guide

Stick Welding Guide: Electrodes, Setup and Technique

Choose the electrode and polarity, prepare the joint, then practise arc length, travel and slag removal.

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