Roll Hemming Sheet Metal

Sheet metal hemming process can be generally classified into two major categories such as classical conventional hemming and roller hemming process.

Roll hemming sheet metal.

In sheet metal hemming means to fold the metal back on itself. Conventional die hemming and roll hemming. When working with a brake press hems are always created in a two step process. Hemming presses are widely used in automotive manufacturing for hemming of sheet metal body components.

Hems are commonly used to reinforce an edge hide burrs and rough edges and improve appearance. Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. Roller hemming combines standard industrial robots equipped with a standard roller hemming head that follows the contour of the outer flanges of a sheet metal component optimally hemming it over an inner panel which is precisely nested in a die. The process uses traditional hydraulically operated stamping presses to hem closure parts and being the last forming process in stamping it largely determines the external quality of such automotive parts as doors hood and trunk lid.

Hemming is the process in which the edge is rolled flush to itself while a seam joins the edges of two materials. Hemming processes press hemming. There are two types of hemming operations.