Spring-back Charts Tutorial

Introduction

This tutorial will step through the functions of the spring-back charts plug-in and the process of adding spring-back entries to the chart.

The spring-back charts plug-in is used to record the attempted and achieved bend angles for each individual die. Once at least 2 entries are added, a full chart of spring-back and achieved angles ranging from 1° to 180° will be generated.

Tutorial

Note

Before starting the tutorial, a part and a die must be created. This tutorial will be using the part that was created in the Linear 2D Designer Tutorial and the die that was created in the Die Library Tutorial. Please complete both the Linear 2D Designer and die library tutorials before proceeding.

Step 1

First, open the spring-back charts plug-in. Go up to the top of the window and click the settings menu. Select the spring-back charts option from the drop down menu.

Step 2

This will open the spring-back charts window. On the far right, there will be a list of each die. In the middle, spring-back entries can be added once a die is selected.

Step 3

Click on the 100mm die (made in the Die Library Tutorial) in the die list to select it. This needs to be done before any spring back entries are added to the die.

Step 4

Now the first spring back entry will be added to the die. Click the add button. This will open the message box where spring back entries will be supplied.

In the achieved angle field, enter 90. In the spring/overbend angle field, enter 98. This means that the when aiming to create a 90° bend with the current die, the bend had to be bent to 98° to compensate for the spring back. After these two values are provided, click the green check button to add the entry to the chart.

The angle values and current date will be added to the chart as shown below.

Step 5

Next, the second spring back entry will be added to the die. Again, click the add button.

In the message box, enter 30 into the achieved angle field. In the spring/overbend angle field, enter 33. Then click the green check button to add the entry.

The entry will be added to the chart as shown below.

Step 6

Now, close the spring-back charts window. Click the close button as shown below.

Step 7

Go to the top of the designer window and see how each bend angle is given a spring angle in the results chart. For example, all 45° bends have a spring angle of 49.2°. This means that each 45° bend needs to be bent all the way to 49.2° so once spring back occurs and the bend re-opens a bit, the bend will become 45°.