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      <title>Contour Flange options</title>
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      <div class="title_topic4" id="xps10_pagetitle">Contour Flange options</div>
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               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('nx_sheet_metal/cflange_over.html');return(false);">Overview</a></p>
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               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('nx_sheet_metal/cflange_howto.html');return(false);">How To</a></p>
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               <p class="para_td">Options</p>
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               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('nx_sheet_metal/cflange_related.html');return(false);">Related Topics</a></p>
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                  <p class="para_td"><b class="uiTerm">Width</b></p>
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                  <p class="para_td"><b class="uiTerm">Width Option</b></p>
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                        <p class="para_item"><b class="uiTerm">Finite Extent</b> <img align="bottom" src="graphics/finite_ext.gif" border="0">&nbsp;projects the profile a finite width to either side of the profile plane. You must supply a width.
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                        <p class="para_item"><b class="uiTerm">Symmetric Extent</b> <br><img align="bottom" src="graphics/sym_extent.gif" border="0">&nbsp;applies half the specified width to each side of the profile. You must supply a width.
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                        <p class="para_item"><b class="uiTerm">To End Extent</b> <img align="bottom" src="graphics/to_end_extent.gif" border="0">&nbsp;projects the profile to the end of the selected edge.
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                        <p class="para_item"><b class="uiTerm">Chain Extent</b> <img align="bottom" src="graphics/chain_extent.gif" border="0">&nbsp;projects the contour flange along a series of edges that you select. Note that it will not chain through edges that meet at a concave corner. The following figure illustrates this. If chaining continued and included the edge where the contour flange is missing, it would self-intersect at the interior corner, causing an error condition.
                        </p><br><p align="center"><img align="bottom" src="graphics/chain.gif"></p>
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                        <p class="para_item"><b class="uiTerm">Width</b>: Specify a width (<b class="uiTerm">Finite</b> and <b class="uiTerm">Symmetric Extent</b> only)
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                  <p class="para_td"><b class="uiTerm">Miter</b>: You can set the following options for both the <b class="uiTerm">Start</b> and <b class="uiTerm">Finish End</b> of the contour flange
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                  <p class="para_td"><b class="uiTerm">Miter Corners</b></p>
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                  <p class="para_td">MIters (trims diagonally) the end at the angle you specify. Here is a flange mitered at the standard -45 degree angle.</p>
                  <p class="para_td"><img align="bottom" src="graphics/cflange_miter.gif" border="0"></p>
                  <p class="para_td"><b class="uiTerm">Cutout</b></p>
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                        <p class="para_item"><b class="uiTerm">Normal to Thickness Face</b> miters the end of the contour flange perpendicular to the thickness face.
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                        <p class="para_item"><b class="uiTerm">Normal to Source Face</b> miters the end of the contour flange perpendicular to the source face.
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                  <p class="para_td"><b class="uiTerm">Angle</b> sets the miter angle for the specified end of the contour flange. A negative value miters the flange inward and typically removes material. A positive value miters the flange outward and typically adds material. With some complex contour flanges, material can be both added or removed when an end is mitered. 
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                  <p class="para_td"><b class="uiTerm">Miter Using Normal Cutout Method</b></p>
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                  <p class="para_td">Creates miters perpendicular to the thickness face at corners and ensures that you can unbend and rebend the contour flanges in your part. Note that this method removes more material at the corners, so if you want water-tight flanges at the corners and are not concerned about creating a flat pattern of this part, you may prefer not to use this option.</p>
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                  <p class="para_td"><b class="uiTerm">Miter Interior Corners When Necessary</b></p>
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                  <p class="para_td">(<b class="uiTerm">Chain Extent</b> only)&nbsp;Determines whether a miter should be applied, and only comes into effect when the chain edges of a contour flange span a bend region. This option for <b class="uiTerm">Contour Flange</b> in NX 5 results from the new ability to flange around curved edges. To achieve behavior equivalent to NX 4, you must select only the tab edges and not the bend edges, as shown in the following figure.
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                  <p class="para_td"><img align="bottom" src="graphics/when_necessary_off_1.jpg" border="0"></p>
                  <p class="para_td">In NX 5, if you select the bend edges, the <b class="uiTerm">Contour Flange</b> is built across those edges as well. If the radius of the bend region being spanned is large enough, the <b class="uiTerm">Contour Flange</b> fills in this area with a rounded bend region, as shown below.
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                  <p class="para_td"><img align="bottom" src="graphics/all_edges_1.jpg" border="0"></p>
                  <p class="para_td">If you select <b class="uiTerm">Miter Interior Corners When Necessary</b>, the software only miters the corners spanning bend regions if the corners would self-intersect. In the figure below, the bend region on the left is too small to accommodate the flange edges, so they are mitered. The bend on the right is large enough that it isn't necessary.
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                  <p class="para_td"><img align="bottom" src="graphics/when_necessary_on_1.jpg" border="0"><img align="bottom" src="graphics/when_necessary_on_2.jpg" border="0"></p>
                  <p class="para_td">The decision to miter or not is based on the length of the flange and the radius of the bend region being spanned. If the length of the flange is less than the radius of the bend region that the chain is traversing, NX Sheet Metal does not apply miters to that corner region. The radii in question are shown below highlighted in red.</p>
                  <p class="para_td"><img align="bottom" src="graphics/radii_2.jpg" border="0"><img align="bottom" src="graphics/radii_1.jpg" border="0"></p>
                  <p class="para_td">If you do not select this option, NX Sheet Metal miters the sides of the flanges, regardless of the length of the flange or the radius of the bend region being spanned, as shown in the following figures.</p>
                  <p class="para_td"><img align="bottom" src="graphics/when_necessary_off_1.jpg" border="0"><img align="bottom" src="graphics/when_necessary_off_2.jpg" border="0"></p>
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                  <p class="para_td"><b class="uiTerm">Corners</b></p>
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                  <p class="para_td"><b class="uiTerm">Close Corner</b></p>
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                  <p class="para_td">Specifies that you want to close the interior corners. Bend relief is applied when you close three inside bend corners. The following treatment options are only available if you select <b class="uiTerm">Close Corner</b>.
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                  <p class="para_td"><b class="uiTerm">Open</b> applies no treatment.
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                  <p align="center"><img align="bottom" src="graphics/cc_open.gif"></p>
                  <p class="para_td"><b class="uiTerm">Close</b> closes the bent faces of the flange until the edges intersect.
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                  <p class="para_td"><img align="bottom" src="graphics/cc_closed.gif" border="0"></p>
                  <p class="para_td"><b class="uiTerm">Circular Cutout</b> creates a found cutout. If you select this option, you must specify a diameter for the circle.
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                  <p class="para_td"><img align="bottom" src="graphics/cc_round.gif" border="0"></p>
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      </table><br><p class="para_topic">You can also modify the default <a class="links" href="javascript:void(0)" onclick="top.openFile('nx_sheet_metal/bend_params.html');return(false);">bend parameters</a>.
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