Welding Knowledge Center

Practical resistance welding guidance for project teams.

Process fundamentals, machine selection questions and application planning notes—written to help buyers and engineers prepare a clearer equipment brief.

Evidence-led contentGrounded in process requirements, workpiece information and real equipment context.

Featured guide

Start with the process question

A concise technical read for teams comparing welding routes before they request a machine proposal.

MFDC resistance spot and projection welding machine

Process Fundamentals

MFDC vs. AC Resistance Welding: How to Compare the Processes

A practical comparison of MFDC and conventional AC resistance welding for buyers evaluating current control, transformer size, utilities and application fit.

Jul 25, 20267 min read

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Technical library

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Resistance welding equipment prepared for factory testing

Selection Guides

How to Select a Spot Welding Machine for Your Workpiece

A specification checklist for matching a resistance spot welder to material, thickness, joint access, electrode force, utilities and production rate.

Jul 25, 20268 min read

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Machining equipment used to manufacture welding machine components and tooling

Engineering Notes

Resistance Welding Electrode Design: The Basics Buyers Should Know

Understand how electrode material, face geometry, cooling, alignment and maintenance influence resistance welding access and consistency.

Jul 25, 20267 min read

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Resistance seam welding machine with driven wheel electrodes

Process Fundamentals

Resistance Seam Welding: Process, Applications and RFQ Checklist

Learn how wheel electrodes form overlapping resistance welds and what to specify for longitudinal, circumferential and sealed seam projects.

Jul 25, 20267 min read

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Butt and flash butt resistance welding machine

Process Fundamentals

Butt Welding vs. Flash Butt Welding: Choosing the Joint Process

Compare resistance butt and flash butt welding for wire, rod, tube and profile joints by heating method, clamping, upset and finishing needs.

Jul 25, 20267 min read

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Custom automated resistance welding workstation

Automation Planning

Custom Welding Automation: What to Prepare Before an RFQ

A project-definition checklist covering workpiece data, weld process, cycle time, handling, tooling, inspection, safety and acceptance.

Jul 25, 20269 min read

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News Center

Resistance brazing tool steel

Tool steel generally includes medium and low carbon steel tool steel, alloy steel and high-speed steel. In the high temperature of resistance brazing, their structure and properties are prone to problems of annealing, oxidation and decarburization.

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Resistor brazing brass

Brass is a copper-zinc alloy. Zinc oxide and cuprous oxide are easily generated on the surface during resistance brazing at high temperatures. Although zinc oxide is relatively firmly bonded, it is relatively easy to remove with flux, so it does not affect the weldability.

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How to resistance braze pure copper

Pure copper easily produces copper oxide and cuprous oxide during resistance brazing, but they are not difficult to remove with flux, so the weldability is good.

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How to operate resistance brazing

The operation of resistance brazing is very different from that of resistance spot welding. Resistance brazing needs to maintain a high temperature for a certain period of time to melt the filler metal, while spot welding requires heating to the melting point of the base metal before forging, so the operation is also different.

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How to adjust welding parameters in resistance brazing

Xinxing Welding's resistance brazing machine has few parameters and is easy to operate. There is only one important parameter, which is the welding current.

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How large should the gap be left for resistance soldering joints?

If you want the strength and density of brazing to meet standards, the size of the gap must be controlled well. If the gap is too large, it will be difficult to fill it with solder, resulting in weak welding and poor strength. The gap is too small and it is difficult for the solder to penetrate into it.

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Topic clusters

Move from research to a useful project brief

Understand the process

Compare how spot, seam, butt and stored-energy welding create the joint.

Define the workpiece

Record material, thickness, geometry, coating, access and quality targets.

Plan the equipment

Translate force, current, tooling, handling and cycle needs into a review scope.

Ready for an application review?

Share the workpiece before choosing the machine.

Material, joint geometry, target output and available utilities give the technical team a more useful starting point.

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