Stable Air Tightness, Minimal Spatter, Low Distortion – Ring-shaped Beam Welding Heads Enable High-quality Mass Production in the Pipe Manufacturing Industry

12 Aug,2026

一.Targeting Industry Pain Points (Core Challenges in Pipe Welding)

Pipe manufacturing, especially high-frequency welded pipes and laser-welded pipes, is highly sensitive to production continuity, consistency and post-processing costs. The main drawback of the traditional single Gaussian beam lies in excessive energy concentration: the ultra-high central temperature causes instant material vaporization, generating strong recoil pressure that splashes molten metal like water droplets.

This brings direct consequences: severe spatter on weld surfaces requiring secondary grinding; frequent contamination of protective lenses leading to mandatory production stops for cleaning; and thin-walled pipe distortion caused by excessive heat input. Against the backdrop of pursuing one-step forming without grinding, these issues become major obstacles restricting production capacity

The core value of the ring-shaped beam welding head lies in reorganizing laser energy. Adopting a beam shaping optical system, it reconstructs the incident Gaussian beam into a uniformly controllable ring-shaped beam.

For the pipe manufacturing industry, its competitive advantages are reflected in three aspects:

1.Near-zero spatter, eliminating grinding procedures

The ring-shaped beam delivers more uniform heat distribution and lowers the temperature in the central zone, preventing fierce agitation of molten metal caused by excessive temperature differences. Meanwhile, the expanded heating area offers ample space for welding vapor to escape steadily, avoiding explosive spatter. Practical tests show that the ring beam solution reduces spatter volume by over an order of magnitude during welding of galvanized sheets and aluminum alloys and greatly optimizes weld surface roughness. For certain materials, welds can meet engineering standards for direct application without post-weld grinding. This saves not only labor costs but also the overall production cycle of the whole line.

2.Controllable heat input, preventing thin sheet distortion

Pipe manufacturing often processes thin-walled materials. Traditional lasers deliver concentrated heat followed by rapid cooling, triggering two problems for thin-walled pipes: pipe warpage along the weld seam, and excessively fast cooling that hardens and embrittles weld structures and undermines subsequent processing performance. The ring-shaped beam expands the heat-affected zone while cutting the peak temperature gradient. It secures required penetration and greatly reduces thermal distortion of base materials. This advantage is decisive for pipes requiring precise assembly in later procedures.

3.High process tolerance and excellent weld consistency

During continuous pipe production, unavoidable variables include strip thickness deviations, fluctuating joint gaps and minor mechanical vibration. The ring-shaped beam forms a thermal buffer zone around the weld, acting as a cushion for welding. Slight focal offset or minor gap fluctuation barely affects penetration depth. Under identical power fluctuations, the ring-shaped beam achieves more stable penetration than conventional lasers, ensuring consistent weld strength along the entire pipe.

二.Technical Feasibility and Practical Value of Ring-shaped Beam Welding Heads for Retrofit of Existing Production Lines

Xinghong Optoelectronics’ ring-shaped beam welding head solution boasts outstanding engineering adaptability and comprehensive cost control, effectively solving two core practical difficulties in pipe line upgrading. First, retrofits can be completed without replacing lasers to lower upfront investment. Second, universal interface design ensures compatibility with existing production equipment and shortens downtime for renovation.

For pipe production lines already equipped with conventional single-channel fiber lasers, replacing only the welding head represents the most cost-effective technical upgrade

Take the HO series from Xinghong Optoelectronics as an example. It adopts a built-in beam shaping system that directly converts standard Gaussian beams into ring-shaped beams. This means:

No need to discard existing lasers: plug-and-play with ordinary fiber lasers, compatible with power ranging from 2kW to 60kW.
Minimal production downtime: mechanical and electrical interfaces follow universal standards; operators can remove the old head and install the new one with an extremely short commissioning period.
Controllable long-term maintenance costs: optical modules adopt standardized design. Consumables such as lenses enjoy high versatility for easy procurement of spare parts, enabling controllable and transparent operating expenses.

三.Application Case Videos of Ring-shaped Beam Welding Heads

Welding of high-strength steel pipes

Welding of 304 stainless steel pipes

Welding of automotive air conditioning condenser tubes

Against the backdrop of thin-profit operation across the pipe manufacturing industry, simple cost reduction is merely a short-term measure. Sustained and stable quality improvement constitutes the core of enterprise competitiveness. Adopting ring-shaped beam welding heads delivers long-term comprehensive benefits far beyond lower consumption of consumables such as lenses. It systematically improves overall equipment efficiency and rapidly cuts defect rates significantly

If your production line is troubled by welding spatter and weld rework, complete replacement of the whole production line is unnecessary. Simply upgrade the welding head to the ring-shaped beam solution — low investment and fast returns. This is exactly what laser technology should be: user-friendly operation and perfect welding results.