<!DOCTYPE html
  PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<!--
Copyright (c) 2006 UGS Corp.

All Rights Reserved.

This software and related documentation are proprietary to UGS Corp.
-->
<html>
   <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <title>Draw Wall Angle</title>
      <script language="javaScript">
        abridged="false";
        displayConditions=new Array();
      </script>
      <link type="text/css" href="../css/main_styles.css" rel="stylesheet">
   </head>
   <body class="bodydocs" onload="top.pageLoader()" bgcolor="#FFFFFF">
      <div class="title_topic4" id="xps10_pagetitle">Draw Wall Angle</div>
      <hr noshade="true">
      <div class="title_division">Description</div>
      <p class="para_division">Check that the sheet metal to be formed in the draw die is open to the direction the press is traveling.</p>
      <div class="title_division">Purpose</div>
      <p class="para_division">To determine if any backdraft conditions exist for the sheet metal being drawn, or if flanges can be formed in the draw die.</p>
      <div class="title_division">Computational Method</div>
      <p class="para_division">A grid of triangles is placed over the shape to be formed in the draw die. At each triangle vertex, the angle between the sheet normal and the press direction vector is measured. This angle is compared to the standard values specified for the check. The picture below illustrates this computation method.</p>
      <p align="center"><img align="bottom" src="graphics/dfm_draw_wall_color_fringe.gif"></p>
      <p class="para_division">The customer defaults are initially defined for three color ranges, but up to five color ranges can be specified. The DFM Advisor will assign a color for each range. The ranges are specified as follows.</p>
      <table cellspacing="0" align="center">
         <tr>
            <th colspan="1" rowspan="1" valign="top">
               <table cellspacing="3" width="335" align="center">
                  <colgroup span="1">
                     <col span="1" width="112*">
                     <col span="1" width="86*">
                  </colgroup>
                  <tr valign="top">
                     <th bgcolor="#c0c0c0" colspan="2" rowspan="1" valign="middle">
                        <p class="para_th">Three Colors</p>
                     </th>
                  </tr>
                  <tr valign="top">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Greater than Ranges[0]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Pass</p>
                     </td>
                  </tr>
                  <tr valign="top">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Less than Ranges[0]</p>
                        <p class="para_td">Greater than Ranges[1]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Warning</p>
                     </td>
                  </tr>
                  <tr valign="top">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Less than Ranges[1]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Failure</p>
                     </td>
                  </tr>
               </table><br></th>
            <th colspan="1" rowspan="1" valign="middle">
               <table cellspacing="3" width="333" align="center">
                  <colgroup span="1">
                     <col span="1" width="120*">
                     <col span="1" width="78*">
                  </colgroup>
                  <tr valign="middle">
                     <th bgcolor="#c0c0c0" colspan="2" rowspan="1" valign="middle">
                        <p class="para_th">Four Colors</p>
                     </th>
                  </tr>
                  <tr valign="middle">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Greater than Ranges[0]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Pass</p>
                     </td>
                  </tr>
                  <tr valign="middle">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Less than Ranges[0]</p>
                        <p class="para_td">Greater than Ranges[1]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Warning</p>
                     </td>
                  </tr>
                  <tr valign="middle">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Less than Ranges[1]</p>
                        <p class="para_td">Greater than Ranges[2]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Failure</p>
                     </td>
                  </tr>
                  <tr valign="middle">
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Less than Ranges[2]</p>
                     </td>
                     <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
                        <p class="para_td">Failure</p>
                     </td>
                  </tr>
               </table><br></th>
         </tr>
      </table><br><div class="title_division">Cost penalty</div>
      <table cellspacing="3" width="785" align="center">
         <colgroup span="1">
            <col span="1" width="87*">
            <col span="1" width="102*">
            <col span="1" width="102*">
            <col span="1" width="100*">
         </colgroup>
         <tr valign="top">
            <th bgcolor="#c0c0c0" colspan="1" rowspan="1" valign="top">
               <p class="para_th">Deviation</p>
            </th>
            <th bgcolor="#c0c0c0" colspan="1" rowspan="1" valign="top">
               <p class="para_th">Complexity Result</p>
            </th>
            <th bgcolor="#c0c0c0" colspan="1" rowspan="1" valign="top">
               <p class="para_th">Added Cost</p>
            </th>
            <th bgcolor="#c0c0c0" colspan="1" rowspan="1" valign="top">
               <p class="para_th">Complexity Value</p>
            </th>
         </tr>
         <tr valign="top">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
               <p class="para_td">Less than Ranges[0]</p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
               <ul>
                  <li>
                     <p class="para_item">...</p>
                  </li>
                  <li>
                     <p class="para_item">...</p>
                  </li>
               </ul>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
               <p class="para_td">$XXX</p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="middle">
               <p class="para_td">X</p>
            </td>
         </tr>
      </table><br></body>
</html>