Raising Productivity and Competitiveness with LS Handheld Laser Welder

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Raising Productivity and Competitiveness with LS Handheld Laser Welder

Raising Productivity and Competitiveness with LS Handheld Laser Welder

Killer Of Electric Welding And Argon Arc Welding

LS Handheld Fiber Laser Welding Machine, also called Handheld Fiber Laser Welder, Portable Fiber Laser Welding Machine, Manual Fiber Laser Welding Machine, is a new type high-power, high-end continuous welding tool that couples a high-energy laser beam into an optical fiber, collimates it into parallel light through a collimating lens after long-distance transmission, and then focuses on the workpiece for welding.

The handheld laser welding machines for metals, equipped either with an independently developed wobble welding head or a common welding head, greatly improving the joint strength and quality of welding and obtaining better weld formability. All products realize spot welding, straight seam welding, overlap welding, circumferential welding and welding of any track. And you can also add welding wire. Compared with traditional argon arc welding, the efficiency is increased by more than 50%.

Replacing the old thermal welding systems with a hand-held type weld gun, not only facilitates the welding of molds, advertising characters, kitchen utensils, doors and windows, etc., but also makes laser welding possible in outdoor operations, the welding ability expands from small light workpieces to large bulky objects that are difficult to move, such as stainless steel silos, stainless steel spiral air ducts, chimney pipes, auto steel pig feeders, almost no size limitations, which indicates that the traditional welding of electric welding, argon arc welding, etc. will definitively be replaced by fiber laser welding.

Handheld laser welding machine has the advantages of simple operation, beautiful weld seam, fast welding speed, and no consumables. It can be used for welding various metals sheets and tubes: such as stainless steel plates, iron plates, galvanized plates and CS plates, aluminum plates, brass plates, other metal sheets and tubes.

LS Wobble-IV Handheld Fiber Laser Welding Machine

Standard Welding Heads Or Wobble Welding Heads?

Handheld Fiber Laser Welding Machines with standard welding heads are designed to focus a collimated laser beam to a required spot size, keeping the beam path static through the beam delivery and a static spot at the focal plane. This standard configuration limits each setup to a specific application.

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Handheld Fiber Laser Welders with Wobble welding heads incorporate scanning mirror technology inside a standard weld head. By oscillating the beam with internal mirrors, the focal spot is no longer static, and can be dynamically adjusted by changing the shape, amplitude, and frequency.

Wobble welding (or oscillation welding) is where a high-beam-quality laser is used with a galvo scan-head to rapidly oscillate the focal spot.

Wobbling effectively increases beam diameter during laser welding, increasing the width of the weld while maintaining the efficiency of deep keyhole welding. This method of welding enables much easier control of weld parameters such as weld width and depth of penetration which can lead to a more efficient welding process.

Compared to common laser welding, wobble laser welding best for wider seam welding and deep penetration welding.

Fiber laser technology with wobble, increases the quality and productivity of high-power fiber laser welding.

This method of welding enables much easier control of weld parameters such as weld width and depth of penetration which can lead to a more efficient welding process.

Two Kinds Of Fiber Laser Welding For Different Product Design Needs

Autogenous Welding


Materials are joined without the addition of extra filler materials which requires the highest level of fixturing and joint preparation.

Welding seams can be formed completely by melting part of the base material without using additional filler

Joint fit-up gap: Since no material is added, it is necessary for the materials to be welded to remain in intimate contact during the welding process.

Fixturing: Fixturing to ensure consistent fit-up of the weld joint is a key to successful fiber laser welding. An important benefit of fiber laser is welded joints with exceptional cosmetic appearance. In some cases, these welds are almost perfectly blended with the surrounding material. Depending on the fixturing and joint fit-up, some welds may have small amounts of concavity (which may not be acceptable for product designs that require fatigue properties similar to those of the base material) or convexity.


A completed, autogenous laser weld on a corner joint requires no grinding or polishing

Additive Welding

Material is added to the weld joint usually in the form of metallic wire or powder.

Three reasons for adding material to the weld are:

Joint fit-up: By adding external material, the joint becomes more tolerant to joint mismatch. Acceptable welds may be produced from joints with less than perfect fit-up.

Weld geometry: Addition of filler metal is used to control the shape and size of the weld. Maintaining a crown (convex surface of the weld) creates a reinforcement which is important for joints requiring mechanical strength and fatigue life in the overall product’s design performance.

Dissimilar metals: Filler metal is added to facilitate welding of dissimilar metals and alloys which are otherwise metallurgically incompatible.


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