Compared with traditional stamping processes, the hydroforming process offers significant technical and economic advantages, including weight reduction, fewer parts and molds, increased stiffness and strength, and lower production costs. As a result, it is seeing increasing application in industrial sectors, particularly in the automotive industry.

In fields such as the automotive, aerospace, and aviation industries, reducing structural mass to save energy during operation has long been a pursued goal and remains a trend in the development of advanced manufacturing technologies. Hydroforming is precisely an advanced manufacturing technology aimed at achieving structural lightweighting.

Also known as "internal high-pressure forming," the fundamental principle of hydroforming involves using a tube as the blank. While high-pressure fluid is applied inside the tube, axial thrust is simultaneously exerted on both ends of the tube blank to supplement material. Under the combined action of these two external forces, the tube blank material undergoes plastic deformation and conforms to the inner wall of the mold cavity, resulting in a hollow part that meets the required shape and precision specifications.