焊接工藝是一種通過加熱或加壓，或兩者并用，并且使用（或不使用）填充材料，使兩個或多個分離的物體達到原子間結合的技術。

它廣泛應用于制造業、建筑業和修理行業中，是現代工業不可或缺的一部分。

焊接方法多種多樣，包括電弧焊、氣體保護焊、電阻焊、激光焊等，每種方法都有其特點和適用范圍。

Welding technology is a technique that achieves atomic-level bonding of two or more separate objects through the application of heat or pressure, or both, 

and by using (or not using) filler material. It is widely employed in manufacturing, construction, and repair industries, serving as an indispensable part of modern industry. 

Welding methods are diverse, including arc welding, gas shielded welding, resistance welding, laser welding, and more, each with its own characteristics and areas of application.