Hem

Hem operation is used for flanging:

The operation enables users to “glue” a flange of the selected type to the outline of the workpiece. For creating a hem, you should select one or several workpiece edges belonging to one face. Hem can build a closed loop.

Following hem types are available:

Command parameters

Command parameters are general for sheet metal commands and are described in the corresponding subsection above.

The command automenu options are:

Finish input. Builds a geometry according to the given parameters. In case there are not enough parameters set, the option is not available.

Set entity Parameters. Calls a standard dialog of 3D modeling command parameters.

Exit command. Shuts down the command with canceling all the set parameters.

Preview Operation Result. Enables/disables the standard option of 3D modeling commands review.

Add Edges. Selects the edge determining the base bending line. The option is active by default on entering the command.

Cancel Selection. Cancels all the elements selected and clears the operand window.

Hem creation

A typical procedure when creating a hem is:

•Select the edge defining the base bending line;

•Set the position;

•Select the hem type from the list;

•Set the command parameters defining the flanging shape;

•Set the relief and offset parameters, if necessary;

•Set the angle machining parameters, if the flanging has intersections with the workpiece;

•Set the gap value, if the flanging is given for adjacent edges.

•If the specified parameters allow creation of a valid hem, finish the input. Otherwise, change the parameters.