Ensuring Aisi 4130 Welding Quality Common Weld Methods - China

Welding process

To ensure the quality of AISI 4130 welding, the following process measures are usually required: Preheating

Preheating temperature: Usually the preheating temperature is 150-300°C (300-575°F), depending on the thickness of the material and the welding method.

Thicker materials require higher preheating temperatures.

Purpose of preheating: Preheating can slow down the cooling rate, reduce the hardening of the heat-affected zone, and reduce the risk of cracks.

Welding method

Common welding methods: AISI 4130 welding can use a variety of welding methods, including:

Manual metal arc welding (SMAW)

Tungsten inert gas welding (TIG/GTAW)

Metal inert gas welding (MIG/GMAW)

Submerged arc welding (SAW) Among them, TIG welding and MIG welding are usually the most commonly used methods because they can provide a better protective gas environment and reduce the introduction of hydrogen.

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