Buying Guide for the Best Cheap Tig Welders
When choosing a TIG welder, it's important to consider your specific needs and the type of projects you plan to work on. TIG welding, or Tungsten Inert Gas welding, is known for its precision and ability to create high-quality welds on a variety of metals. To find the best TIG welder for you, you'll need to understand the key specifications and how they relate to your welding tasks. Here are some important specs to consider when selecting a TIG welder.Amperage RangeAmperage range refers to the range of electrical current the welder can produce. This is important because different materials and thicknesses require different amperage levels. For thin materials like aluminum or stainless steel, a lower amperage (around 5-200 amps) is sufficient. For thicker materials, you'll need a higher amperage (up to 300 amps or more). Choose a welder with an amperage range that matches the types of projects you plan to work on.
Duty CycleThe duty cycle indicates how long a welder can operate continuously before needing to cool down. It is usually expressed as a percentage of a 10-minute period. For example, a 60% duty cycle at 150 amps means the welder can run for 6 minutes at 150 amps before requiring a 4-minute rest. If you plan to work on longer projects or need to weld continuously, look for a welder with a higher duty cycle. For occasional or hobbyist use, a lower duty cycle may be sufficient.
AC/DC CapabilityAC/DC capability refers to the welder's ability to switch between alternating current (AC) and direct current (DC). AC is typically used for welding aluminum and magnesium, while DC is used for welding steel, stainless steel, and other metals. If you plan to work with a variety of metals, choose a welder that offers both AC and DC options. If you only work with one type of metal, you may only need a welder with either AC or DC capability.
PortabilityPortability is an important factor if you need to move your welder between job sites or around your workshop. Portable welders are typically lighter and more compact, making them easier to transport. However, they may have lower power output compared to larger, stationary models. Consider how often you'll need to move your welder and choose a model that balances portability with the power and features you need.
Foot Pedal ControlA foot pedal control allows you to adjust the amperage while welding, giving you greater control over the welding process. This is especially useful for precision work and when welding thin materials. If you need fine control over your welds, look for a welder that includes a foot pedal or has the option to add one. For basic welding tasks, a welder without a foot pedal may be sufficient.
High-Frequency StartHigh-frequency start is a feature that helps initiate the arc without the need to touch the tungsten electrode to the workpiece. This reduces contamination and makes starting the arc easier, especially for beginners. If you're new to TIG welding or want to ensure clean starts, look for a welder with high-frequency start capability. Experienced welders may be able to manage without this feature, but it can still be a helpful addition.