Lincoln Electric Making Fillet Welds Specification Sheet Download Page 8

Making Fillet Welds with Power Wave AC/DC 1000™ System

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APPLICATION

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Welding Guide

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Figure 12

The weld on the left is DC+, 15 ipm travel. 

The weld on the right is AC Balanced 25%, (-) 10% offset,

30 Hz., 21 ipm travel.

Figure 13

The weld on the left is with DC+, at 10.4 ipm travel.

The weld on the right is with AC 25% Balanced,

(-)20% Offset, 30Hz, at 15 ipm.

Figure 14

The weld on the left is with DC+.

The weld on the right is with AC 25% Balanced,

(-)10% Offset, 60Hz.

Some Fillet Weld Results`

A number of fillet welds made with the Power Wave
AC/DC 1000™ are shown as examples. All of these
welds comply with the AWS D1.1 Structural Steel
Code and the AWS D1.5 Bridge Code and those
codes that clone or refer to the AWS Codes. 

All fillet welds conform to the acceptable size and
gauge size requirements of the code.There has been
no intent to match any specific mechanical properties,
however, the welding consumables used to produce
these welds are commonly used.

Figure 12: Horizontal, 5/16” (8mm) fillet welds, shows
an increase of 40% in travel speed over DC+. Both
welds made with 5/32” (4mm) diameter electrode at
527 amperes.

Figure 13: Flat positioned 1/2” (13mm) fillet welds
show an increase of 44% in travel speed over DC+.
Both welds made using 3/16” (4.8mm) diameter 
electrode at 885 amperes.

Figure 14: Horizontal 1/4” (6mm) fillet welds, with an
increase of 32% in travel speed over DC+.

Summary of Contents for Making Fillet Welds

Page 1: ...LIMITED AC OUTPUT TAILORING Choice of AC frequency from 10 Hz to 100 Hz Wave balance control to allow more or less DC positive component Offsetting the AC wave to change the magnitude of the negative...

Page 2: ...C 527 Amps Figure 1 AC DC 520 Amps DC welding has almost always been the preferred choice for producing submerged arc welds Some of these reasons are 1 Lowest capital cost for equipment 2 Greater arc...

Page 3: ...ng penetration This is always expressed as a percentage of the DC component i e 25 Balance means that only 25 of the cycle will be positive while 75 of the cycle will be negative etc Figure 3 shows tw...

Page 4: ...net gain of 29 over DC The increased deposits possible using a combination of wave balance and wave offset may raise the question about root penetration While at present the major welding codes do not...

Page 5: ...the total time for the arc to be at peak values As the frequency decreases more time is available at peak value and more importantly less time is spent in the transition region The converse occurs as...

Page 6: ...5 70 3 2 90 2 1 Penetration mm 5 40 3 83 3 91 3 87 4 10 4 02 DC SW AC 25 BAL 10 OFFSET 40 Hz SW AC 25 BAL 10 OFFSET 20 Hz SW AC 25 BAL 10 OFFSET 70 Hz SW AC 25 BAL 10 OFFSET 80 Hz DC Welding Mode Pene...

Page 7: ...E C H N O L O G Y T M Figure 11 Power Wave AC DC 1000 Deposition Rate Illustrating the ability of Power Wave AC DC 1000 technology to significantly increase fillet welding productivity Figure 11 show...

Page 8: ...DC 1000 are shown as examples All of these welds comply with the AWS D1 1 Structural Steel Code and the AWS D1 5 Bridge Code and those codes that clone or refer to the AWS Codes All fillet welds confo...

Page 9: ...maximum increase with equal or improved weld appearance Easy Welding Procedure Setup The Power Wave AC DC 1000 system is the easiest system ever produced when it comes to changing from one welding pro...

Page 10: ...enhance the performance of arc welding processes Advancements in power electronics digital communications and Waveform Control Technology are the foundation for many of the improvements NEXTWELD brin...

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