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not sacrifice any penetration because during the 50% on time at 130 amps, the rod burns as hot and deep as 

it normally would on a classic stick welder at 130 amps. 

 

This may prompt you to ask: If the amperage range of the rod is 80 or 90 to 160, why not set the welding 

current at 160 amps so the Inverarc sets the background current to 80 amps? The amperage ratings, 

essentially, would be well within the specs then. This is absolutely possible and a good setting. However, 

this setting is very hot and metal transfer occurs the entire time. This, paired with a 3-4 Hz pulse frequency 

makes for a very high travel speed in the horizontal or flat position. Plus, the heat input into the work piece 

is enormous.  

 

Knowing what we know now, let’s go back to the beginning and look more closely at the advantages of 

pulse welding. 

 

Pulse welding includes ALL of the following advantages, but 

not all at the same time

 

 

Visually spatter free (MIG & TIG only, though still reduced spatter when stick welding) 

 

Higher travel speeds—

As just covered, with the right settings, the travel speed can be greatly 

increased.

 

 

Deeper penetration—

If you choose the same or similar settings to the ones for a higher travel speed, 

the overall heat input and penetration increases also. 

 

 

Less heat input, which equals less material distortion—

More like the first example about setting the 

welding current to 130 amps.

 

 

Ability to weld thinner material than you could without pulse—

To achieve this, you would reduce the 

max amperage even more. For example, 110 amps or 120 amps with a 55 amp background current, 

which makes for an average heat input of (110 + 55)/2 = 82.5 amps. With this setting, you can weld 

materials with a 1/8” rod when you would normally need to weld with a 3/32” rod.

 

 

Superior control of the weld puddle, especially when welding out of position—

You have better control 

on lower pulse frequencies because the puddle has time to partially solidify.

 

 

Easily join materials of differing thicknesses—

More like the first example about setting the welding 

current to 130 amps.

 

 

Better gap bridging when welding materials with a poor fit up—

More like the first example about 

setting the welding current to 130 amps.

 

 

Ability to make leak-tight welds—

Spray arc or stick welding arc, in general, works better at making 

leak tight welds that short arc MIG, for example.

 

 

Improved bead appearance—

Pulse welds, especially lower frequency pulse welds (2 Hz or less) make 

really nice and defined ripples on the top of the weld bead; welds like this are generally thought to be 

aesthetically appealing.

 

 

Ability to use one size bigger welding rod than normal—

To achieve this, you would reduce the max 

amperage even more. For example, 110 amps or 120 amps with a 55 amp background current, which 

makes for an average heat input of (110 + 55)/2 = 82.5 amps. With this setting, you can weld 

materials with a 1/8” rod when you would normally need to weld with a 3/32” rod.

 

 

Weld on thinner material without burning through—

More like the first example about setting the 

welding current to 130 amps.

 

 

Easier for beginner welders—

The pulsed stick process is extremely forgiving.

 

Summary of Contents for Inverarc 200 TLP

Page 1: ...Inverarc 200 TLP Owner s Manual 180 Joey Drive Elk Grove Village IL 60007 Ph 847 357 0700 Fax 847 357 0744 Web www usaweld com...

Page 2: ...than thirty 30 days after the discovery HTP America Inc has reserved the right to make changes in design and or add any improvements to its products at any time without incurring any obligation to in...

Page 3: ...achine are firmly secured in place when the machine is connected to the power supply Insulate yourself from the workbench and from the floor ground use insulating footwear and gloves Keep gloves footw...

Page 4: ...4 Fig 1...

Page 5: ...ltage 100 V No Load Voltage with VRD On Less than 25 V Arc Voltage Stick 20 2 28 V Arc Voltage TIG 10 2 18 V Arc Force Stick Only ARC Welding Mode 0 200 CEL Welding Mode 0 500 Hot Start Stick Only 3 4...

Page 6: ...atter free MIG TIG only though still reduced spatter when stick welding Higher travel speeds Deeper penetration Less heat input which equals less material distortion Ability to weld thinner material t...

Page 7: ...y So while stick rods deposit less material lbs hr than flux cored wire the quality of the deposits is much higher generally speaking What makes stick welding so different than all other welding proce...

Page 8: ...00 years build the same model engine driven welding machines over and over with minimal changes In the last couple of decades however stick welding technology has undergone some major advancements New...

Page 9: ...c Weld Mode Indicator LED 6 Power Indicator LED 7 Over Temp Indicator LED 8 Multifunction Amperage Display 9 Encoder 10 Arc Force Indicator LED 11 Slope Down Function Indicator LED 12 Pulse Function I...

Page 10: ...n Indicator LED Fig 2 12 will blink and the display will read P Fr By turning the encoder Fig 2 9 you can vary the frequency value from 0 4Hz to 5Hz The factory set the base current at 50 of the weldi...

Page 11: ...ndicator LED Fig 2 12 will blink and the display will read P Fr By turning the encoder Fig 2 9 you can vary the frequency value from 0 4Hz to 999Hz The factory set the base current at 25 of the weldin...

Page 12: ...cable assembly must be connected to the negative weld current terminal Fig 2 1 This is commonly referred to as reverse polarity If the specifications show DCEN Direct Current Electrode Negative the e...

Page 13: ...it different In Europe procedures that spec pulse welding exist The pulse welding process is relatively new in the U S so no written procedures that spec pulse welding currently exist For example a 1...

Page 14: ...this you would reduce the max amperage even more For example 110 amps or 120 amps with a 55 amp background current which makes for an average heat input of 110 55 2 82 5 amps With this setting you can...

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