Lincoln Electric IM649 manual Software Operation, Synergic Welding and Workpoints

Section 3

SOFTWARE OPERATION 3-1

3.1 SYNERGIC WELDING AND WORKPOINTS

Prior to using Wave Designer it is important to have a good understanding of the concepts of synergic welding and workpoints. Synergic welding is basically “one knob control” of a welding process; all other variables of the process are adjusted by the power source based on the single controlling variable. This single controlling variable is known as a workpoint. For example, in synergic pulse welding (GMAW-P), the operator can adjust the wire feed speed (WFS). The WFS is the workpoint. The synergic power source will then set all other GMAW-P variables based on the WFS by “looking up” the other variables from a pre-programmed weld table. See Figure 3-1.

Wave Designer is a program that lets you develop a customized weld procedure by letting you program each variable for multiple workpoints into a weld “look up” table.

Power Wave power sources go even a step further than simply “looking up” pre-programmed variables from a weld table. If a selected WFS is between two pre-programmed workpoints, the Power Wave will interpolate values for each of the welding variables. The result is a precise and continuous range of welding control.

Refering to Figure 3-1, lets examine how this interpolation works by looking at one welding variable — background amps. The operator selects a wire feed speed of 175 in/min. This value is between the pre-programmed workpoints of 150 and 200 in/min. The Power Wave interpolates between the pre-programmed background amp values of 80 and 60 and adjusts the background amps to 70.

FIGURE 3-1. WFS ENCODER AND WELD DATA TABLE.

WFS/AMPS	NOTE: WFS ENCODER SETTING
ENCODER	DETERMINES WELDING
	PROCESS VARIABLES PER
	RELATED WELD TABLE.

PRE-PROGRAMMED WELDING PROCESS VARIABLES

		PULSE	WIDTH	BACKGROUND	AMPS
(WFS)
WORK-
POINTS
80	280	1.2		20		50
100	280	1.2		40		60
150	280	1.2		60		80
200	280	1.2		80		90
250	280	1.2		100		100

BACKGROUND AMPS

100

90

80

70

60

50

40

30

20

10

0

0

INTERPOLATED

PARAMETER VALUE

	INTERPOLATED
BACKGROUND AMPS
				WFS = 175
50		100	150	200
WIRE FEED SPEEDS				27850005

WAVE DESIGNER