Stamping has been the traditional method for metal shaping for many years, but hydroforming is growing in popularity. They are both effective methods for shaping metal, but the best option will depend on the circumstance. Stamping and hydroforming perform the same function in different ways, so choosing the most cost-effective, efficient method is important.
Metal stamping uses two tools, a male and female component, to stamp metal into a specific shape. This can be useful for mass production of one shape, but it can be expensive and difficult to make design changes. Any changes in the mold will require replacing both tools, rather than a single one. Stamping also results in more overall waste than hydroforming. Though stamping is the traditional method, hydroforming addresses many of the problems present in stamping.
Hydroforming uses high-pressure fluids to form metals into specific shapes. The fluid, usually water or oil, exerts pressure on a rubber diaphragm. This diaphragm expands, putting equal pressure on every point of the material. Hydroforming allows you to create more complex shapes with less work. It tends to be more cost-effective, because water is usually the force used to shape the metal.
Through the use of hydroforming, only one tool has to be modified. This also allows multiple molds to be used at the same time, producing several parts at once. The use of hydroforming creates stronger parts than metal stamping. It also results in less waste. Hydroforming is often used in the aerospace and automotive industries, due to its ability to make complex parts without compromising their strength.
Stamping and hydroforming can both be used to shape metals. In most cases, hydroforming is the ideal method for part production, but stamping can also be useful. To learn more about the best method of metal forming for you, contact us at Sanson Machinery Group. Our experts are able to provide you with the best guidance for your situation.