TRIM LINE

 

This is a new function added in the eta/DYNAFORM 5.5 DFE module. This function enables the user to determine the trim line of the flange of the part. The trim line is determined so that the sheet boundary takes the desired geometry at the end of the forming steps, following by the trimming operation.  The dialog box of TRIM LINE is illustrated in Figure 6.3.41.

 

Figure 6.3.41 Create Trim Line dialog box

 

GAP TOLERANCE

 

This parameter sets the tolerance between the selected flange and the addendum elements. If the gap between the flange and the addendum is larger than the defined tolerance, the flange boundary is selected as the outer boundary.

 

CREATE BY ELEMENTS

 

This function enables the user to select the flange elements which is used to obtain the trim line on the addendum. The user selects elements using the functions provided in the displayed SELECT ELEMENTS dialog box. The trim line is automatically created on the addendum or the binder surface. Please refer to Figure 6.3.42 and Figure 6.3.43 for illustration of CREATE TRIM LINE operation.

Figure 6.3.42 Before Create the Trim Line operation.

Figure 6.3.43 After Created the Trim Line operation.

 

DELETE TRIM LINE

 

This function enables the user to remove the trim line.

 

 

EDIT LINE

 

All of the functions in this group enable the user to edit the trim line including Insert Points, Move Points and Delete Points.

 

Insert Points: This function enables the user to add points on the trim line. After the function is selected, the user selects a line. All of the points on the line are highlighted. The user can click the location on the screen with the left arrow. The point will be added on the line according to the shortest length to the pick position.

 

Move Points: This function enables the user to move the points on the trim line to a new location. After the function is selected, the user selects a line. All of the points on the line are highlighted. The user can select one point on the line following by picking a location on the screen. The selected points are moved to the new position.

 

Delete Points: This function enables the user to remove points on the trim line. After the function is selected, the user selects a line. All of the points on the line are highlighted. The points are removed.

 

 

UPDATE

 

This function enables the user to update the trim line if the addendum or the binder is modified. The trim line is updated according to the new addendum.

 

UNDO

 

This function enables the user to UNDO the result from previous operation.

 

CLOSE

 

This function enables the user to exit the TRIM LINE dialog box.