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      <title>Using a material table</title>
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      <div class="title_topic4" id="xps10_pagetitle">Using a material table</div>
      <hr noshade="true">
      <p class="para_topic">One way to define the deformation in the bend regions of your part is to define a set of materials that include the bend parameter information.</p>
      <p class="para_topic">To define the characteristics of the materials you can use, you must edit the <i class="fileName">sheet_metal_material_table.txt</i>&nbsp;file. This file is usually in the <i class="pathName">%UGII_BASE_DIR%\ugii\materials</i> directory. You can change the location of this file to another local directory or to a location in Teamcenter by changing the customer defaults for <b class="uiTerm">Sheet Metal</b>&rarr;<b class="uiTerm">General</b> on the <b class="uiTerm">Material Standards</b> tab.
      </p>
      <p class="para_topic">The materials file is a simple text file in the format of a standard comma-delimited spreadsheet.  The material table is segmented from the rest of the file by a set of specific keywords: <b class="literalText">MATERIAL_TABLE</b> and <b class="literalText">END_OF_MATERIAL_TABLE</b>. Between these keywords is the data comprising the table.
      </p>
      <p class="para_topic">The characteristics of the table are as follows:</p>
      <ul>
         <li>
            <p class="para_item">The first row of the table contains the column headings.</p>
         </li>
         <li>
            <p class="para_item">Each column must have a unique name that is one word long. (The underscore character can be used to combine words.)</p>
         </li>
         <li>
            <p class="para_item">The keywords <b class="literalText">BEND_RADIUS</b>, <b class="literalText">THICKNESS</b>, and <b class="literalText">NEUTRAL_FACTOR</b> are valid NX Sheet Metal feature parameters
            </p>
         </li>
         <li>
            <p class="para_item">The second row of the table is a flag indicating whether the information in that column is shown or hidden. (If a column is tagged as hidden, the data in that column does not appear in the <b class="uiTerm">NX Sheet Metal Material Standards</b> dialog box and cannot be used in selecting the material.) Also, in the second row of the table, one column has a &ldquo;unique&rdquo; tag, which tells NX that the data in that column must be unique and will be used to tell one material from another even if the material parameters are the same. The column with the material names is usually labeled unique, although a different column could be unique (for example, a column of material ID numbers) as long as each string in the column is unique.
            </p>
         </li>
      </ul>
      <p class="para_topic">In the material table, the first column is a set of unique names that describe each material in the table. Each column after that contains information about the material, such as finish, thickness, default bend radius, and neutral factor.</p>
      <p class="para_topic">Sometimes several versions of the same material may be required. In such cases, the information in the table can be exactly the same, except for the value in question and different identifiers in the unique column.  For example, if you have a specific type of aluminum that you use (Aluminum 0421) but in several different thicknesses, your table might look something like this:</p>
      <table border="1" cellpadding="2" cellspacing="1" align="center">
         <colgroup span="1">
            <col span="1">
            <col span="1">
            <col span="1">
            <col span="1">
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         <tbody>
            <tr>
               <td bgcolor="silver" colspan="4" rowspan="1">
                  <p class="para_td">MATERIAL_TABLE</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="silver" colspan="1" rowspan="1">
                  <p class="para_td">Material_name</p>
               </td>
               <td bgcolor="silver" colspan="1" rowspan="1">
                  <p class="para_td">THICKNESS</p>
               </td>
               <td bgcolor="silver" colspan="1" rowspan="1">
                  <p class="para_td">BEND_RADIUS</p>
               </td>
               <td bgcolor="silver" colspan="1" rowspan="1">
                  <p class="para_td">NEUTRAL_FACTOR</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">unique</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">show</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">show</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">show</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" height="26" rowspan="1">
                  <p class="para_td">Aluminum0421_T020</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" height="26" rowspan="1">
                  <p class="para_td">0.20</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" height="26" rowspan="1">
                  <p class="para_td">3.0</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" height="26" rowspan="1">
                  <p class="para_td">0.33</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">Aluminum0421_T030</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.30</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">3.0</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.33</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">Aluminum0421_T040</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.40</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">3.0</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.33</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">Aluminum0421_T050</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.50</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">3.0</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.33</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">Aluminum0421_T060</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.60</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">3.0</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">0.33</p>
               </td>
            </tr>
            <tr>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1">
                  <p class="para_td">END_OF_MATERIAL_TABLE</p>
               </td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1"></td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1"></td>
               <td bgcolor="#f7f7f7" colspan="1" rowspan="1"></td>
            </tr>
         </tbody>
      </table><br><p class="para_topic">Each row of data is given a unique identifier and the value in question changes, but everything else in the table can be static.</p>
      <p class="para_topic"></p>
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