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What is welding?

November 25, 2023

What is welding?

Welding is a process of joining two or more metals or thermoplastic materials together by heating, melting or pressing them. This process involves melting part or all of two or more workpieces and then allowing them to cool, forming a strong connection.

The main purpose of welding is to create a durable, strong enough connection to join disparate metal parts or components together. Welding can be applied to a variety of materials, including metals, plastics and composites.

The welding process usually includes the following steps:

Preparation work: Prepare the workpiece to be welded and ensure that its surface is clean and smooth to improve the welding quality.

Select the welding method: Select the appropriate welding method based on the type of material, thickness and welding requirements. Common welding methods include arc welding, gas-shielded welding, laser welding, plasma welding, etc.

Set welding parameters: Set parameters in the welding process according to specific conditions, such as current, voltage, welding speed, etc.

Perform welding: Perform the welding process to join workpieces together through the application of heat, melting, or pressure.

Cooling: Allow the welding area to cool down and allow the weld to solidify.

Inspection and post-processing: Inspect the welding parts to ensure welding quality. Sometimes post-processing is required, such as grinding, polishing, heat treatment, etc.

Welding is widely used in manufacturing, construction, aerospace, the automobile industry and other fields, and is an important means of connecting metal parts. Choose appropriate welding methods and materials according to different application needs and requirements.

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