SheetMetal AddHem

SheetMetal AddHem
Menu location
SheetMetal → Make Hem
Workbenches
SheetMetal
Default shortcut
Z
Introduced in version
-
See also
None

Description

The SheetMetal AddHem command creates hems on selected edges. By changing the Dataangle property a flange it can be turned into a hem.

A hem usually consists of a cylindrical bend of roughly 180° and a planar strip (wall).

Two selected edges → two mitered hems

Usage

1. Select one or more edges of a solid shape.
2. There are several ways to invoke the command:
   • Press the Make Hem button.
   • Select the Sheet Metal → Make Hem option from the menu.
   • Right-click in the Tree View or the 3D View and select the Sheet Metal → Make Hem option from the context menu.
   • Use the keyboard shortcut: Z.
3. A Hem object is created that consists of one new hem at each selected edge, and the Hem properties Task Panel opens:
   • With the General tab selected:
     • Optionally press the Select button to add more edges.
       • Optionally press the Clear selection button to clear the list of selected edges.
       • Press the Preview button to finish the selection and display the changes.
     • Optionally adjust the bend parameters in this tab. See the General section of the Task Panel description below
   • Optionally switch to another tab to adjust more parameters. See Offsets, or Miter, section of the Task Panel description below.
4. Press the OK button to finish the command and close the Task Panel.
5. Optionally adjust the parameters in the Property View.

Task Panel

Double-click an existing Hem object in the Tree View to re-open the Task Panel and edit the parameters.

General

• Select: Changes the amount of edges in the base Object property.
• Type: Sets the HemType property.
  • Flat activates these sub-options:
    • Width: Sets the width property.
    • Reverse the wall: Toggles the invert property.
    • Width includes bend: Toggles the Include Bend property.
  • Open: activates these sub-options:
    • Width: Sets the width property.
    • Reverse the wall: Toggles the invert property.
    • Width includes bend: Toggles the Include Bend property.
    • Opening: Sets the opening property.
  • Tear Drop: activates these sub-options:
    • Width: Sets the width property.
    • Reverse the wall: Toggles the invert property.
    • Width includes bend: Toggles the Include Bend property.
    • Bend radius: Sets the radius property.
    • Open: Toggles the opened property.
      • Opening: Sets the opening property.
  • Rolled: activates these sub-options:
    • Bend radius: Sets the radius property.
    • Open: Toggles the opened property.
      • Roll angle: Sets the Roll Angle property.
• Position: Sets the Bend Type property.
• Unfold: Toggles the unfold property.

Offsets

• Gap A: Sets the gap1 property.
• Gap B: Sets the gap2 property.
• Rectangle and Round radio buttons: Toggle the relief Type property.
• Width: Sets the reliefw property.
• Depth: Sets the reliefd property.

Miter

(Not available for rolled hems)

• Auto Miter: Toggles the Auto Miter property.

  If checked:

  • Minimum Gap: Sets the minGap property.
  • Max Extend Distance: Sets the max Extend Dist property.

  If unchecked:

  • Angle 1: sets the miterangle1 property.
  • Angle 2: sets the miterangle2 property.

Notes

• See Create a sheet metal object for a basic workflow.

Properties

See also: Property View.

A SheetMetal Hem object is derived from a Part Feature object or, if it is inside a PartDesign Body, from a PartDesign Feature object, and inherits all its properties. It also has the following additional properties:

Data

Parameters

• DataBend Type (Enumeration): "Bend Type". Material Outside (default), Material Inside, Thickness Outside.
• DataHem Type (Enumeration): "Type of Hem". Flat (default), Open, Teardrop, Rolled.
• DataInclude Bend (Bool): "Width includes bend geometry". Default: false.
• DataRoll Angle (Angle): "Roll Angle". Default angle: 90,00°.
• Database Object (LinkSub): "Base Object". Link to the planar face to receive a hem.
• Datagap1 (Distance): "Gap from Left side". Default: 0,00 mm.
• Datagap2 (Distance): "Gap from Right side". Default: 0,00 mm.
• Datainvert (Bool): "Invert Bend Direction". Default: false.
• Dataopened (Bool): "Opened Hem". Default: false.
• Dataopening (Length): "Openening. of Hem". Default: 1,00 mm
• Dataradius (Length): "Bend Radius", the default value depends on the radius property of the parent feature:
• Datawidth (Length): "Width of Wall". Default: 10,00 mm.

Parameters Ex

• DataAuto Miter (Bool): "Enable Auto Miter". Default: true.
• Datakfactor (FloatConstraint): "Location of Neutral Line. Caution: Using ANSI standards, not DIN.".
  Default: 0,50. K factor (also known as neutral factor) for the bend. Used to calculate bend allowance when unfolding.
• Datamax Extend Dist (Length): "Auto Miter maximum Extend Distance". Default: 5,00 mm.
• Datamin Gap (Length): "Auto Miter Minimum Gap". Default: 0,20 mm.
• Datamin Relief Gap (Length): "Minimum Gap to Relief Cut". Default: 1,00 mm.
• Dataunfold (Bool): "Shows Unfold View of Current Bend". Default: false
true unfolds the bend.

Parameters Miterangle

• Datamiterangle1 (Angle): "Bend Miter Angle from Left Side". Default angle: 0,00°.
• Datamiterangle2 (Angle): "Bend Miter Angle from Right Side". Default angle: 0,00°.

Parameters Relief

• DataRelief Factor (Float): "Relief Factor". Default: 0,70.
• DataUse Relief Factor (Bool): "Use Relief Factor". Default: false.
• Datarelief Type (Enumeration): "Relief Type". Rectangle (default), Round. Enabled only when a gap value is set.
• Datareliefd (Length): "Relief Depth". Default: 1,00 mm. Enabled only when a gap value is set.
• Datareliefw (Length): "Relief Width". Default: 0,80 mm. Enabled only when a gap value is set.