Hemming In Sheet Metal

Hemming is a metalworking process where a sheet metal edge is mechanically bent to fit an uneven surface or simply roll over onto itself.

Hemming in sheet metal.

In sheet metal hemming means to fold the metal back on itself. Automotive body panels and automotive parts such as deck lids trunk lids doors hoods and tailgates are formed by hemming process. Create a bend with acute angle tooling in the metal 30 is preferable but 45 will work for some circumstances. Hemming is the process in which the edge is rolled flush to itself while a seam joins the edges of two materials.

Normally hemming operations are used to connect parts together to improve the appearance of a part and to reinforce part edges. Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. During this process the edge of sheet metal is folded over. Seams are commonly used in the food industry on canned goods on amusement park cars in metal roofing and in the automotive industry.

And while hems or seams reinforce a sheet metal edge their main purpose is to improve appearance by hiding burrs and rough edges on metal back splashes and other sheet metal installations. Sheet metal is available in a variety of gauges. Hemming is a metalworking process that involves rolling the edge of sheet metal over and onto itself essentially creating an area of two layers. The two newly formed layers then lie flush with each other.

When working with a brake press hems are always created in a two step process. Hemming is a sheet metal forming process in which sheets are joined by bending it to 180.