Appendix B

STT WAVE SHAPING PRINCIPLES

B-15

 

 

 

B.7 APPLICATION EXERCISE

This application exercise steps the user through the development of a basic PowerWave/STT welding program using Wave Designer. Your application most likely will vary from this example but the concepts outlined are recommended for all development work.

If you would like to follow along with this example, use the following set up:

Machine: PowerWave/STT, PowerFeed 10, Magnum 400 gun and cable, miscellaneous other parts to complete welding cell (The standard PowerWave does not have an STT capability. Be sure to use the STT output stud on the STT power source.)

Wire: 0.045 L-56

Gas: CO2

Computer: See Section 2 of this manual for minimum requirements and connection diagrams. Click on the Wave Designer icon to start the program.

For this example, we developed a program to weld 16 gauge fillets and lap welds at 130 in/min wire feed speed. The user may want to develop more workpoints for practice.

Before starting the waveshape development process, confirm that the consumables are working properly with the welder. We recommend using a standard waveshape such as mode 5 to confirm that the welding system performs under normal conditions before attempting to develop waveshapes.

1.Select a wave shape. (From the tool bar, select ‘File’, ‘Open Waveform’.) For this exercise, select the “AST452CF STT Fillet Steel 045 CO2 mode.swf” (Wave Designer with Windows 95/NT supports long file names.) The STT Waveform Editor window is automatically displayed. Generally, the user should choose a waveshape file that has the closest welding performance to the intended application.

 

 

 

File

Tools Print

Help

 

 

 

Open Waveform

Ctrl+O

Save Waveform As ...

Save Waveform

Ctrl+S

 

 

 

27850041

Wave Designer Pro Off Line - AST452CF STT Fillet Steel 045 CO2 mode 117.swf

File Tools Print Help

 

 

 

 

500

 

 

 

 

 

 

 

 

 

 

STT Waveform Editor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

 

 

 

 

 

 

 

 

 

 

Wire Feed Speed

200

Edit

 

 

 

 

 

 

 

 

 

 

 

Peak Amps

 

350

 

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Backgrd Amps

 

55

 

200

 

 

 

 

 

 

 

 

 

 

Tailout Speed

 

.080

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pinch Start

 

245

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

2

3

4

5

6

7

8

9

10

Pinch Peak

 

.70

 

￿

 

￿￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿

 

￿￿￿

 

 

 

 

 

 

 

 

Peak Time

 

1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿

￿

￿￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿

 

 

 

 

 

 

 

 

dV dt detect

 

13.00

 

￿

 

￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿

 

￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿

￿

￿￿

Start

Explain

About

 

 

 

 

 

 

 

 

 

 

 

 

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

￿

￿￿

￿￿

￿￿

￿￿

￿￿

￿￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27850069

WAVE DESIGNER

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Image 69
Lincoln Electric IM649 manual STT Waveform Editor