Hemming Process Sheet Metal

Or the hemming process simulation and validation are taken care of by specialist biw teams using autoform s data exchange capabilities.

Hemming process sheet metal.

Hems are commonly used to reinforce an edge hide burrs and rough edges and improve appearance. The hem is primarily used for reinforcement safety and edge appearance figure 4. Hemming is a sheet metal forming process in which sheets are joined by bending it to 180. In sheet metal hemming means to fold the metal back on itself.

These new hemming process analysis capabilities may be harnessed by viewing the hemming validation as an extension of the regular stamping process simulation placing it into the hands of a specialist already familiar with the simulation of sheet metal forming processes. In car part production hemming is used in assembly as a secondary operation after deep drawing trimming and flanging operations to join two sheet metal parts outer and inner together. Create a bend with acute angle tooling in the metal 30 is preferable but 45 will work for some circumstances. Our flexible process offers numerous advantages over traditional techniques including reduced capital investment costs with superior dimensional quality.

A seam is a method of joining two pieces of sheet metal together figure 5. Sheet metal is available in a variety of gauges. Seams are commonly used in the food industry on canned goods on amusement park cars in metal roofing and in the automotive industry. When working with a brake press hems are always created in a two step process.

Hemming is a metalworking process that involves rolling the edge of sheet metal over and onto itself essentially creating an area of two layers. In the hemming process the bend is started with an acute tool set and then flattened in flattening dies figure 6. Automotive body panels and automotive parts such as deck lids trunk lids doors hoods and tailgates are formed by hemming process. Hemming presses are widely used in automotive manufacturing for hemming of sheet metal body components.

In this process usually a sheet is bent with the help of inner sheet in three different stages. Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. Typical parts for this type of assembly are hoods doors trunk lids and fenders. The two newly formed layers then lie flush with each other.

During this process the edge of sheet metal is folded over.