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      <title>Die Engineering overview</title>
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      <div class="title_topic1" id="xps10_pagetitle">Die Engineering overview</div>
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      <p class="para_topic">NX Die Engineering provides tools for the design and process planning of sheet metal stamping dies.</p>
      <p class="para_topic">Die Engineering processes are typically performed after the product design is complete and before NC tasks begin. It is during this stage that processes associated with manufacturing of the part are completed. This includes selection of the die lineup, assignment and sequencing of forming operations, blank nesting, formability analysis and design of addendum and binder surfaces. The final result is production of one or more die face features (sewn sheet bodies) that represent the state of the sheet metal in each of the dies of the lineup.</p>
      <p class="para_topic">You can begin Die Engineering activities anytime after sufficient information is available for the product to be manufactured. This includes a general idea for the shape and material properties of the part. Because the tools of Die Engineering are parametric, implementation of a coarse-to-fine design approach is feasible. This means that engineers can begin specifying the manufacturing process for a part before it is completely defined, and refine it later as the product design matures.</p>
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            <th bgcolor="#c0c0c0" colspan="2" rowspan="1" valign="top"><a name="options_die_ov_table_summaries"></a><p class="para_th">Die Engineering commands</p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_proc_asst_ov.html');return(false);"><b class="uiTerm">DOL Assistant</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/dol_assistant.gif" border="0"> DOL Assistant lets you generate a complete die lineup in a single step, combining the functions of Die Lineup, Operation, etc. The generated lineup takes into account manufacturing processing rules.
               </p>
               <p class="para_td">The software prompts the user for input along with the geometry of the product and creates the required die lineup features.</p>
            </td>
         </tr>
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            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/dol_ov.html');return(false);"><b class="uiTerm">DOL Report</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/dol_report.gif" border="0"> Lets you interrogate the contents of the die operation lineup. Output is a report in the form of a node tree. Each node in the tree represents an object in the die operation lineup, such as operations, tasks, tips, etc.
               </p>
            </td>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_lineup.html');return(false);"><b class="uiTerm">Lineup</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/lineup.gif" border="0"> Lets you identify the product part that is to be processed by Die Engineering. This is generally the first operation you perform in Die Engineering. Output from this option is a DIE_LINEUP feature.
               </p>
            </td>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_prod_repl_ov.html');return(false);"><b class="uiTerm">Product Replace</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/product_replace.gif" border="0"> Lets you replace a product in an existing lineup. You specify the old and new product, and the system remaps the faces and edges.
               </p>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_op_ov.html');return(false);"><b class="uiTerm">Stamping Operation</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/stamping_operation.gif" border="0"> Lets you define the die operation with descriptive text. You can use default text strings, or you can enter your own text. Output is a DIE_OPERATION feature, consisting of a wireframe box that encloses the press where the sheet metal is stamped.
               </p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_tip_ov.html');return(false);"><b class="uiTerm">Die Tip</b></a></p>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/die_tip.gif" border="0"> Orients the product part in the desired position in the die operation. A DIE_TIP feature is the output for this option, and is required for each product part that is to be positioned in each DIE_OPERATION.
               </p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_tipping.html');return(false);"><b class="uiTerm">Tip Sequence</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/tip_sequence.gif" border="0"> Assists in developing cam directions for trimming/piercing and flanging tasks. The function creates a CSYS that can be used as input in the various task functions for Cam Direction definition.
               </p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_tip_ref_ov.html');return(false);"><b class="uiTerm">Reference Data</b></a></p>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/reference_data.gif" border="0"> Lets you edit the reference data of multiple DIE_TIP features at once, or to create permanent reference data. If you choose the Permanent option, a DIE_REFERENCE_DATA feature is created for each DIE_TIP feature selected.
               </p>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_form_task_ov.html');return(false);"><b class="uiTerm">Form Task</b></a></p>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/form_task.gif" border="0"> Performs a forming task on the product part. Die Form Task is performed after a DIE_TIP feature has been created. The output of Die Form Task is a DIE_FORM_TASK feature consisting of a sheet body that has been trimmed to the forming boundary region. Holes in the sheet are filled when possible.
               </p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_trim_task.html');return(false);"><b class="uiTerm">Trim Task</b></a></p>
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            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/trim_task.gif" border="0"> Lets you specify all the trimming tasks to be performed on the sheet metal. All large cutouts and trims must be defined using the Trim Task. To use this option, you must have created at least one of the following features in the operation: DIE_FORM_TASK, DIE_CARRYOVER, DIE_AREA_FILL, and/or DIE_FLANGE_TASK.
               </p>
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            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/trm_tsk_as_ov.html');return(false);"><b class="uiTerm">Trim Task Assistant</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/trim_task_assistant.gif" border="0"> Defines all the trimming operations required to trim a part along a given trim profile. A Die Engineer can find this command useful to plan the processing of a stamped sheet metal product for trimming operations. 
               </p>
            </td>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_pierce_task.html');return(false);"><b class="uiTerm">Pierce Task</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/pierce_task.gif" border="0"> Lets you specify piercing tasks to be performed on the sheet metal. All holes must be defined using the Pierce Task. To use this option, you must have created at least one of the following features in the operation: DIE_FORM_TASK, DIE_CARRYOVER, DIE_AREA_FILL, and/or DIE_FLANGE_TASK.
               </p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_flange_task.html');return(false);"><b class="uiTerm">Flange Task</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/flange_task.gif" border="0"> Performs a flanging task on the product part. The Flange Task lets you specify intermediate and final shapes of the flange.
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_carryover.html');return(false);"><b class="uiTerm">Stamping Carryover</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/stamping_carryover.gif" border="0"> Lets you quickly copy the die output sheet from the previous operation to the current operation.&nbsp;
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_blank_ov.html');return(false);"><b class="uiTerm">Blank</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/blank.gif" border="0"> Lets you define the outline of the sheet metal blank to be used in the Die Operation Lineup. &nbsp;You accomplish this by selecting a string of planar objects that form a closed curve.
               </p>
            </td>
         </tr>
         <tr valign="middle">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_area_fill.html');return(false);"><b class="uiTerm">Area Fill</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/area_fill.gif" border="0"> Allows you to fill void areas of the product part with sheet bodies. Void areas can occur in product parts that were initially formed as solid sheets of metal, but were later pierced using trim functions. Die Area Fill lets you fill these areas with trimmed sheet bodies. The output of this function is a DIE_AREA_FILL feature.
               </p>
            </td>
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         <tr valign="middle">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_binder_wrap.html');return(false);"><b class="uiTerm">Binder Wrap</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/binder_wrap.gif" border="0"> Lets you design a binder wrap, from which binder surfaces can be derived. Once you complete a binder wrap design, you can flatten the wrap to obtain a blank shape. Output from this option is a DIE_BINDER_WRAP feature.
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/quick_bind_wrap_ov.html');return(false);"><b class="uiTerm">Quick Binder Wrap</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/quick_binder_wrap.gif" border="0"> Creates a binder wrap which is planar, cylindrical, or conical, based on the shape of the sheet body.
               </p>
            </td>
         </tr>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_section.html');return(false);"><b class="uiTerm">Addendum Section</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/addendum_section.gif" border="0"> Lets you define one or more addendum sections that may be used later to create an addendum surface.
               </p>
            </td>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_addensurf.html');return(false);"><b class="uiTerm">Addendum Surface</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/addendum_surface.gif" border="0"> Lets you to create an addendum surface using sections that you created in the Die Section function. These sections are contained in a DIE_ADD_SECTION feature, which you supply as input to this function.
               </p>
            </td>
         </tr>
         <tr valign="middle">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_crv_ov.html');return(false);"><b class="uiTerm">Output Die Curves</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/output_die_curves.gif" border="0"> Lets you output a variety of curves useful in the development of a die. These curves include but are not limited to the punch opening line, addendum/binder tangency, and edge of blank.
               </p>
            </td>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_binder_ring.html');return(false);"><b class="uiTerm">Binder Ring </b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/binder_ring.gif" border="0"> Lets you create the binder ring, that portion of the binder wrap that is actually clamped during forming. The binder ring usually extends from the end of the addendum to the edge of the blank.
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/drwbd-ov.html');return(false);"><b class="uiTerm">Draw Bead</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/draw_bead.gif" border="0"> Applies a bead shape to a stamping output sheet.
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_face.html');return(false);"><b class="uiTerm">Die Face</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/die_face.gif" border="0"> Lets you see the effects of springback and overcrown operations performed on the die output sheet body.
               </p>
            </td>
         </tr>
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            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/dfm_ov.html');return(false);"><b class="uiTerm">DFM Advisor</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/dfm_advisor.gif" border="0"> Lets you check a design to determine if it meets corporate manufacturing standards. There are 33 different manufacturing criteria that you can use to analyze Draw, Flange, Pierce, and Trim categories.
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/flange_analy_ov.html');return(false);"><b class="uiTerm">Flange Analysis</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/flange_analysis.gif" border="0"> Analyzes a sheet metal flange to make predictions about its formability and to assist in making corrections if the forming is not ideal.
               </p>
            </td>
         </tr>
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            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_trim_angle_check.html');return(false);"><b class="uiTerm">Trim Angle Check</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/trim_angle_check.gif" border="0"> Lets you verify the angle at which scrap material is trimmed away from the part surface.
               </p>
            </td>
         </tr>
         <tr valign="middle">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_punch_progression.html');return(false);"><b class="uiTerm">Punch Progression</b></a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/punch_progression.gif" border="0"> Performs an animation of the movement of the die press, letting you examine the interplay between the movement of the members and sheet metal being formed in the die.
               </p>
            </td>
         </tr>
         <tr>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><a class="links" href="javascript:void(0)" onclick="top.popUpPage('dieengr/linkInter_target_not_resolved.html#analysis:analysis_ana_onestep_form:-aux,-home','linkInter','menubar=yes,status=yes,resizable=yes,toolbar=yes,scrollbars=yes,location=no,directories=no');return(false);"><b class="uiTerm">One Step Formability Analysis</b></a></p>
            </td>
            <td bgcolor="#F4F4F4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"><img align="bottom" src="../graphic_library/icons/toolbars/vehicle_automation/die_engineering/one-step_formability_analysis.gif" border="0"> Flattens all or some faces of a sheet metal part using FEM analysis and calculates the thinning, stress, strain, and springback to predict the risk of forming.
               </p>
            </td>
         </tr>
         <tr valign="middle">
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_edit_face.html');return(false);">Editing the DIE_OUTPUT Feature</a></p>
            </td>
            <td bgcolor="#f4f4f4" colspan="1" rowspan="1" valign="top">
               <p class="para_td">You can modify the DIE_OUTPUT feature using Springback Compensation with one of the following types: Membrane Expansion, Overcrown By Function, Overcrown By Surface and Flange Rotation. The first three of these are done by using Edit&gt; Feature to select the DIE_OUTPUT feature, which opens the Die Output dialog. Flange Rotation is done through the Springback Angle field on the  <a class="links" href="javascript:void(0)" onclick="top.openFile('dieengr/die_flange_task.html');return(false);">Die Flange Task</a> dialog.
               </p>
            </td>
         </tr>
      </table><br><div class="title_division">Basic Task Sequence</div>
      <p class="para_division">Although the ordering of tasks is arbitrary, a typical Die Engineering job could proceed as follows:</p>
      <ol type="1" start="1">
         <li>
            <p class="para_item">Collect the necessary product data. Ensure that material properties are defined using Tools&gt; Material Properties.</p>
         </li>
         <li>
            <p class="para_item">Initiate the Die Engineering process description by performing the Die Lineup function. This associates a product part (or parts) to be manufactured with the process to be used. The output of this function is a DIE_LINEUP feature consisting of a sheet body that represents the combined footprint of the required dies on the factory floor.</p>
            <p class="para_item">The DIE_LINEUP feature collects the product shape information and provides a way to associate more detailed information, defined later, to the process. In order to provide a selectable item for the DIE_LINEUP, a rectangle is created in the work part at the WCS origin, representing the plant floor. The presses needed to stamp the part could be placed on this rectangle when the die line design is complete. The size of the rectangle depends on the information available.</p>
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            <p class="para_item">Define the sequence of dies to be used to manufacture the part(s) and the allocation of forming, trimming and flanging tasks to each die. This is accomplished by completing the Die Operation function for each of the dies in the lineup. The output is a DIE_OPERATION feature, which consists of a  die operation wireframe box enclosing the space between the rams of the press in a closed position. </p>
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            <p class="para_item">Transform the product part(s) into the coordinate system of the die press by performing the Die Tip function. There is one DIE_TIP feature created for each product part to be produced.</p>
            <p class="para_item">The orientation of the product part in the press is commonly called the tip. Defining the DIE_TIP requires a change in the coordinate system needed to bring the product from its design position to its position in the press that performs the operation. The DIE_TIP feature is represented by the product transformed into the die operation wireframe box (also known as the Die Operation Window).</p>
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            <p class="para_item">Identify one or more manufacturing tasks to be accomplished for each die operation, such as forming, flanging and trimming. The Die Form Task function produces a sheet body that represents the shape of the sheet metal after the forming task is complete.</p>
            <p class="para_item">A DIE_FORM_TASK feature captures the information associated with a forming task. This is described by selecting the product and operation, defining the boundary of the affected region on the part, and the direction of the tool that will accomplish the task. In some cases, the process description contains graphic representations, usually in the form of cross sections, of the shape of the sheet metal before and/or after the operation. If there is a cross section representation of the shape, the system allows it to be associated to the DIE_FORM_TASK feature.</p>
            <p class="para_item">A DIE_TRIM_TASK feature is used to model trim tasks. All large cutouts and trim functions are performed on the sheet metal using Die Trim Task.</p>
            <p class="para_item">A DIE_PIERCE_TASK feature is used to model pierce tasks. All holes are put into the sheet metal using DIE_PIERCE_TASK.</p>
            <p class="para_item">Flanges are formed using the Die Flange Task. If flanges are to be constructed to intermediate shapes, then the shape details must be provided by the user. Otherwise the flange is constructed to the product part shape.</p>
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            <p class="para_item">Fill void areas of the product part(s) that are initially formed as solid sheets of metal but later produced by performing pierce and trim tasks. The Die Area Fill function allows you to fill these areas with trimmed sheet bodies. The output of this function is a DIE_AREA_FILL feature.</p>
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            <p class="para_item">Prepare addendum surfaces that span the area between the product part(s) and the binder ring. The shape of the addendum is critical to absorb the heavy stresses of forming and to control the flow of material in the product part surfaces. The Die Section and Die Addendum Surface functions are used to complete this stage of design.</p>
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            <p class="para_item">Begin modeling the binder and addendum surfaces. This iterative process might start by using Die Section to create several preliminary section curves. These sections bridge the area between the part surfaces and the binder ring. Usually addendum surfaces are tangent to both the part surfaces and the binder ring. &nbsp;The Extend to Binder option can be used to create sections that extend to an imaginary binder surface. &nbsp;By connecting the end points of these sections, you create a curve that can be used as input for the binder wrap. &nbsp;&nbsp;&nbsp;</p>
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            <p class="para_item">Prepare a binder wrap surface that shows the shape of the sheet metal as it is clamped by the binder. This is the shape prior to strike by the punch. The Die Binder Wrap function is used to produce an optimal shape that avoids unnecessary distortion of the metal prior to forming. The curve created in the prior step can be used as input to this function.</p>
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            <p class="para_item">Complete the modeling of addendum surfaces by adjusting section parameters to produce an addendum that meets formability criteria. The Die Addendum Surface function is used to complete this stage of design. At this time, the binder wrap surface created above can be supplied as input to the Die Addendum Surface function to ensure that tangency of these surfaces is preserved.</p>
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            <p class="para_item">Use the Output Die Curves function to develop a curve that represents the trim line, that portion of the material that will be trimmed away as scrap.</p>
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            <p class="para_item">Verify the trimming conditions by measuring the angle at which the material is trimmed. Trim Angle Check is available for this purpose.</p>
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            <p class="para_item">View a simulation of the forming process by executing the Punch Progression function. A sectional view of the material is presented in animation as it is distorted by the forming process.</p>
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      <p class="para_division">The final output of Die Engineering is one or more DIE_OUTPUT features. A DIE_OUTPUT feature combines all the sheet bodies produced by the die engineering tasks, the addendum surfaces, and the binder ring into a single sewn sheet. The DIE_OUTPUT feature also removes the areas from the sheet body representing the result of trim and pierce tasks. There is one DIE_OUTPUT feature for every DIE_OPERATION feature. The DIE_OUTPUT feature may be used in subsequent Die Structure Design and CAM design processes.</p>
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