02. Establish Basic Part Characteristics.pptx

SHEET METAL Establish basic part characteristics

Content :

SHEET METAL WORKFLOW ESTABLISH BASIC PARTCHARACTERISTICS DEFINE THE BASIC SHAPE OF THE PART CONSTRUCTING BASE FEATURES SHEET METAL CORNERS SHEET METAL CUTOUTS SHEET METAL DEFORM FEATURES FLAT SOLID AND FLAT PATTERN ADVANCED SHEET METAL COMMANDS ANALYZE FORMABILITY – ONE STEP AEROSPACE SHEET METAL WORKING WITH NON-SHEETMETAL DATA

Establish basic part characteristics Purpose

• In NX, to save design time and encourage reuse, companies can set global parameters based on both industry standards and company best practices.

Objectives

• Upon the completion of this lesson,

you will be able to: •

Set global parameters for sheet metal features.

•

Set Sheet Metal preferences for sheet metal features.

•

Understand the relationship between global parameters, preferences, and dialog box settings.

Using Sheet Metal preferences and customer defaults • To revert to the company’s global parameters, you must reset the preferences to match the company’s global parameters.

• Global parameters that you set in the Customer Defaults dialog box are session defaults. Although you can override these parameters in the Sheet Metal Preferences dialog box.

Part Properties tab • Value Entry lets you specify the method for defining bends in your parts. • Neutral Factor Value (the default) refers to the neutral axis, the point in a bend where the tension on the outside of the bend and the compression on the inside become neutral. • Bend Table points to a table that specifies a neutral factor based on values from the bend region for angle, radius, and material thickness. • Bend Allowance Formula lets you supply values for the standard variables. The default formula is (Radius+(Thickness*0.44))*rad(Angle).

Global Parameters • The Global Parameters section is available in many command dialog boxes as a quick parameter entry option.

Material Thickness Bend Radius

3.0mm

Relief Depth

3.0mm

3.0mm

Relief Width

3.0mm

Callout Configuration tab • On the Callout Configuration tab in the Sheet Metal Preferences dialog box, you can specify the callouts that you want to display in the flat pattern view. • Callout list : Specifies the callouts that are saved with the part and available by default. • Callout list box : Lists the additional callout text that you can append to the selected callout from the Callout list and create customized callouts. • When you select the text from the Callout list box, and click Add , the configuration of the selected callout text is added to the Callout configuration text box. • Callout configuration text box Displays the configuration of the callouts that you select from the Callout list, or in the Callout list box.

Callout Configuration tab Orientation list • Specifies the orientation of the callouts in the flat pattern view.

Leadered • Creates callouts with a leader line. Aligned • Creates callouts on the bend center lines, without using leader lines.

Bend Parameters • Although you can set bend parameters on the Part Properties tab in the Sheet Metal Preferences dialog box, you can override those values in the Bend Parameters group of many command dialog boxes.

• You can change the Bend Radius and Neutral Factor values. Bend Parameters Bend Radius 3.00

m m

Neutral Factor .033

m m

• To change the default values, click Launch the formula editor Use Local Value.

Summary: Define basic part characteristics • You can simplify and streamline the process of creating sheet metal parts by setting Sheet Metal customer defaults and Sheet Metal preferences. In this lesson you reviewed: • Global parameters. • Sheet Metal preferences.

• Bend parameters. • The Sheet Metal and Aerospace Sheet Metal commands.