Set your amperage. Trim your voltage. Let the curve do the work.
What you'll learn:
✅ How synergic mode links amperage and voltage automatically
✅ How to use Synergic Voltage Adjustment (voltage trim) to dial in your arc
✅ What the Welbee is doing in the background to maintain arc stability
✅ When synergic mode is the right choice for your application
Ready to start?
→ Jump to Synergic Voltage Adjustment to start fine-tuning your arc
→ See Why Use Synergic Mode for a quick summary of the benefits
Let's get started
What traditional GMAW parameter setup looks like
In standard MIG welding, the operator adjusts two variables independently:
Wire feed speed (which drives amperage)
Voltage
Both must be tuned individually. Getting them balanced takes experience, time, and usually a few test welds. Change one, and you typically have to revisit the other.
What is synergic welding?
Synergic welding is a GMAW operating mode where amperage and voltage are linked by a pre-programmed relationship called a synergic curve.
As you increase or decrease wire feed speed, the machine automatically adjusts voltage to match—maintaining arc performance without requiring you to manually rebalance both parameters.
Think of it like cruise control: you set the speed. The machine manages the engine.
How OTC Welbee Synergic Mode works
Setup begins by selecting your welding conditions:
Material
Wire type and diameter
Shielding gas
Based on those inputs, the Welbee loads a pre-programmed synergic curve designed for those exact conditions.
When you begin welding, the machine defaults to a Synergic Voltage Adjustment value of 0.
That "0" represents a baseline voltage proven to work under ideal conditions. But real-world welding isn't ideal. Material cleanliness, gas quality, wire quality, magnetism, and ambient temperature all affect arc behavior.
That's where Synergic Voltage Adjustment comes in.
Understanding synergic voltage adjustment (voltage trim)
In synergic mode, your two primary controls are:
Amperage / wire feed speed
Synergic Voltage Adjustment (Voltage Trim)
Example: You strike an arc and notice it's too wide, with undercut forming at the weld toes. Lower the voltage trim to tighten the arc and focus the puddle.
If -10 produces the best weld profile, that becomes your working trim value.
From there, raise or lower amperage as needed—and the machine will automatically adjust voltage along the synergic curve to maintain similar arc characteristics.
Why this matters: You change output. The machine maintains balance.
You're not chasing voltage every time you adjust amperage. Once your trim is dialed in, the synergic curve holds the relationship between the two. Your expertise goes into finding the right trim value. The machine handles the rest.
Pro Tip: If you're seeing consistent arc issues across a range of amperages — too wide, too much spatter, too narrow — the answer is almost always in the voltage trim, not the amperage.
What the software is doing in the background
While welding, the Welbee's software continuously samples arc data and makes micro-adjustments to maintain arc stability.
This helps reduce:
Dead shorts — a primary driver of spatter
Arc wander — especially pronounced in magnetized parts
Inconsistent metal transfer
The engineers have already mapped the optimal relationship between amperage and voltage for your material, wire, and gas combination. The synergic curve is the delivery mechanism. You fine-tune it.
What Makes This Different from Manual Setup: In manual mode, you're reacting to arc behavior after the fact. In synergic mode, the machine is making continuous corrections in real time — before problems compound.
Why use synergic mode?
Synergic mode is well-suited for:
Faster setup — fewer parameters to balance manually
Repeat production welding — consistent results part to part
Less experienced operators — reduces the skill required to establish a stable arc
Reduced spatter — continuous background adjustments catch instability before it compounds
Improved arc stability — especially in variable real-world conditions
More consistent weld profiles across shifts — same trim value, same results
It simplifies GMAW parameter selection without removing control.
Bottom line: Set it, trim it, let the curve do the work
OTC Welbee Synergic Mode doesn't remove your welding decisions — it reduces the number of variables you have to manage at once.
The curve handles the amperage-voltage relationship. You bring the expertise to find the right trim.
Set your amperage. Trim your voltage. Master the trim — and you control the arc.