Brass Laser Welding Machines

Brass laser welding machines offer fast, clean, and precise welds with minimal heat distortion—ideal for joining conductive, decorative, or precision brass components.
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Product Introduction

Brass laser welding machines are advanced systems specifically designed to weld brass and copper alloys with high precision, speed, and reliability. Brass presents unique challenges in welding due to its high reflectivity and thermal conductivity, which can lead to inconsistent penetration and heat distortion using traditional methods. Laser welding solves these problems by delivering a concentrated, high-energy beam that enables deep, stable welds with minimal heat-affected zones. These machines are ideal for manufacturing applications that demand strength, conductivity, and aesthetic quality, such as plumbing fixtures, electrical components, decorative hardware, and precision instruments. Modern brass laser welding machines often feature fiber laser sources, advanced beam control, and real-time feedback systems to ensure accurate, repeatable welds even on small or intricate parts. Whether you’re working with thin brass sheets, tubing, or machined components, these systems provide clean seams, reduced oxidation, and minimal post-weld processing. They are compatible with robotic automation and CNC systems, making them suitable for both high-volume production lines and custom fabrication. For manufacturers seeking quality, consistency, and efficiency when welding brass, laser welding machines offer a proven, high-performance solution.

Types of Brass Laser Welding Machines

Welding Thickness Reference

Laser Power Welding Form Thickness Welding Speed Defocus Amount Protective Gas Blowing Method Flow Welding Effect
1000W Butt Welding 0.5mm 55~65 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1mm 40~55 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1.5mm 20~30 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
1500W Butt Welding 0.5mm 70~80 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1mm 50~60 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1.5mm 40~50 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 2mm 20~30 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
2000W Butt Welding 0.5mm 80~90 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1mm 60~70 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1.5mm 40~50 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 2mm 30~40 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 3mm 20~30 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
3000W Butt Welding 0.5mm 90~100 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1mm 80~90 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1.5mm 70~80 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 2mm 60~70 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 3mm 50~60 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 4mm 30~40 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 5mm 20~30 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
6000W Butt Welding 0.5mm 100~110 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1mm 90~100 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 1.5mm 80~90 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 2mm 70~80 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 3mm 60~70 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 4mm 50~60 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 5mm 30~40 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely
Butt Welding 6mm 20~30 mm/s -1~1 Ar Coaxial/Paraaxial 5~10 L/min Welded Completely

Compatible Brass Grades

Application of Brass Laser Welding Machines

Brass laser welding machines are used across a wide range of industries that require clean, precise, and high-strength joints in brass components. In the plumbing and HVAC sectors, they are ideal for welding fittings, valves, and connectors that must withstand pressure and corrosion. In the electrical and electronics industries, these machines are used to weld terminals, contacts, and conductors where conductivity and accuracy are critical. Manufacturers of musical instruments and decorative hardware use laser welding to produce fine, detailed joints without damaging surface finishes. In the automotive and aerospace sectors, brass components like bushings, radiators, and sensors are welded with tight tolerances for performance and reliability. Laser welding is also beneficial in jewelry, watchmaking, and luxury goods, where precision and aesthetic weld quality are non-negotiable. Compatible with both manual and automated systems, brass laser welding machines support custom fabrication, mass production, and high-precision assembly with minimal distortion and excellent visual results.
Brass Laser Welding Sample
Brass Laser Welding Sample
Brass Laser Welding Sample
Brass Laser Welding Sample
Brass Laser Welding Sample
Brass Laser Welding Sample
Brass Laser Welding Sample
Brass Laser Welding Sample

Customer Testimonials

Comparison VS Other Welding Technologies

Comparison Item Laser Welding MIG Welding TIG Welding Stick Welding
Heat Input Low (precise control) High (risk of warping/brass fume) Moderate to High High
Weld Speed Very High High Low Moderate
Weld Precision Very High Moderate High Low
Fume Generation (Zinc/Vapors) Low (minimal zinc vaporization) High (toxic zinc fumes) Moderate High
Suitable for Thin Sections Excellent Poor Good Poor
Spatter and Cleanup Minimal High Low High (slag removal)
Weld Appearance Clean and smooth Rough, often discolored Clean and smooth Inconsistent
Need for Filler Material Often not required Required Often required Required
Porosity Control Good with proper parameters Moderate (zinc vapor causes porosity) Fair Poor
Automation Compatibility Excellent (robot-ready) Good Moderate Poor
Post-Weld Finishing Minimal Often required Minimal Significant
Suitable for Intricate Parts Excellent Poor Good Not suitable
Operator Skill Requirement Moderate (software-aided) Moderate High Low to Moderate
Production Throughput Very High High Low Moderate
Initial Equipment Cost High Moderate Moderate Low

Why Choose Us

AccTek Group is a professional manufacturer of laser welding machines, delivering precise, efficient, and reliable welding solutions for a wide range of industries. Our machines are designed to meet the growing demand for high-strength, low-distortion welding in applications such as sheet metal processing, automotive manufacturing, electronics, and aerospace. We combine advanced laser technology with user-friendly design to help businesses improve welding quality, reduce labor costs, and boost production efficiency. Whether you’re handling fine parts or large-scale components, our systems offer the flexibility and performance needed to meet modern manufacturing standards. With a strong focus on quality, innovation, and customer support, AccTek Group is your trusted partner for laser welding solutions.

High Precision

Our machines deliver accurate, clean welds with minimal heat input, reducing distortion and ensuring strong, consistent joints across a wide range of materials and thicknesses.

Easy Operation

Designed with intuitive controls and user-friendly interfaces, our systems allow both experienced operators and new users to achieve professional results with minimal training.

Durable & Reliable

Built with high-quality components and strict quality standards, our welding machines provide stable performance, long service life, and low maintenance requirements.

Custom Options

We offer a variety of models and customizable features to match specific production needs, helping businesses improve workflow and adapt to changing manufacturing demands.

Related Resources

Laser Welding VS TIG Welding

Laser Welding VS TIG Welding

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Laser Welding VS MIG Welding

Laser Welding VS MIG Welding

This article compares laser welding and MIG welding in terms of process, applications, cost, quality, and efficiency to help readers understand their key differences.

What Is Laser Welding

What Is Laser Welding?

Explore the principles of laser welding, its benefits, applications, and how it compares to traditional welding methods. Learn how this advanced technology enhances precision and efficiency.

Frequently Asked Questions

What Are The Optional Powers Of Brass Laser Welding Machines?
Laser welding machines used for brass come in a range of power options to suit different application needs. Due to brass’s high reflectivity and thermal conductivity, laser power selection must be carefully matched to the material thickness and joint configuration to ensure stable welds and minimize defects like porosity or lack of fusion. Here are the commonly available power levels for brass laser welding systems:

  • 1000W: Suitable for precision welding of very thin brass components, often used in electronics, decorative fixtures, and small mechanical parts. Offers high control but limited penetration depth.
  • 1500W: A step up in power, ideal for slightly thicker brass parts in light industrial and automotive applications. It balances energy input with heat control for clean, consistent seams.
  • 2000W: A versatile choice for general-purpose brass welding. This power level can handle moderate-thickness joints, offering both good speed and stable weld quality in production settings.
  • 3000W: Used for welding thicker brass materials or high-throughput production lines. It delivers deeper penetration and faster speeds, making it ideal for structural parts or more demanding joints.
  • 6000W: High-power systems like these are reserved for specialized industrial applications that involve heavy brass sections or complex geometries. They can overcome brass’s reflectivity and conductivity challenges more easily, but require precise control systems and operator expertise to avoid thermal damage or spatter.

Laser welding brass requires tight process control and often benefits from real-time feedback systems and specialized optics to manage reflectivity. Choosing the right power level is key to achieving optimal efficiency and weld quality while minimizing defects.
Brass laser welding machines come in a variety of configurations depending on production needs and automation level. For general use, handheld brass laser welding machines are the more affordable option, typically priced between $3,500 and $18,000. These are ideal for small workshops, maintenance jobs, or mobile operations, offering flexibility and ease of use.
For higher-volume or precision manufacturing environments, automatic brass laser welding systems are available, generally ranging from $10,000 to $30,000. These machines often integrate CNC control, robotic arms, or custom fixtures for consistent, automated welds in complex production settings.
Factors influencing cost include laser power output, cooling systems, control software, brand reputation, and included accessories like wire feeders or safety enclosures.
Laser welding brass can pose health and safety risks if not properly controlled. Brass is an alloy of copper and zinc, and when laser energy is applied, it can vaporize and release fine metal fumes—especially zinc oxide—which may be harmful if inhaled. Prolonged exposure to zinc fumes can cause “metal fume fever,” a flu-like illness with symptoms like chills, nausea, and headaches. To mitigate these hazards, proper precautions are essential:

  • Fume Extraction: A high-efficiency ventilation or fume extraction system should be installed at the welding site to remove airborne particles and gases from the workspace.
  • Personal Protective Equipment (PPE): Operators should wear suitable PPE, including respiratory protection, laser safety goggles, and gloves, to minimize exposure to harmful emissions and optical radiation.
  • Laser Shielding: Enclosures or barriers should be used around the laser welding system to contain stray reflections and prevent eye or skin exposure to the high-intensity laser beam.
  • Material Selection: Welding clean, uncontaminated brass with known composition can help reduce unexpected fume behavior and promote more consistent welds.

When performed in a properly equipped environment with appropriate safety protocols, laser welding brass is manageable and effective. However, it demands careful attention to air quality, operator safety, and laser control systems.
Laser welding machines are capable of joining brass with precision and strength, but the achievable weld thickness depends largely on the laser’s power output and how well the reflective and thermal properties of brass are managed. Here is a breakdown of how thick brass can typically be welded using various power levels:

  • 1000W Power Output: Laser welding machines with 1000W output can generally weld brass up to 1.5 mm thick. This is suitable for small components like decorative hardware, electronics contacts, or thin-walled fittings. Care must be taken to avoid surface reflection and ensure adequate fusion depth.
  • 1500W Power Output: At 1500W, machines can handle brass thicknesses up to 2 mm. This level is often used in precision manufacturing of parts such as lamp bases, plumbing connectors, or brass panels. Shielding gases and optimized beam settings help control spatter and porosity.
  • 2000W Power Output: With 2000W, brass up to 3 mm thick can typically be welded. This range is common for architectural fixtures, thicker tubing, and mechanical parts. Deeper penetration and higher stability make it more forgiving of minor joint imperfections.
  • 3000W Power Output: This level supports welding up to 5 mm of brass. It’s ideal for structural brass elements, heat exchanger components, or large brass housings. Continuous wave mode may be used for longer seams requiring consistent depth and strength.
  • 6000W Power Output: High-power 6000W laser systems can weld brass up to 6 mm thick. These are industrial-grade machines used in aerospace, heavy plumbing systems, or large-scale custom brass fabrication. Advanced control over beam shape, pulse duration, and shielding gas becomes essential at this level to avoid defects like cracking or zinc vaporization.

Brass can be effectively laser welded across a range of thicknesses when matched with the correct power setting and processing strategy. Given brass’s reflectivity and tendency to release zinc fumes during welding, using proper shielding gases (typically argon) and high-efficiency fiber lasers is key to achieving clean, durable joints.
Laser welding brass presents unique challenges due to its high reflectivity and zinc content, which increases the risk of porosity—tiny gas pockets or voids in the weld that compromise strength and appearance. However, with the right techniques and equipment settings, porosity can be significantly reduced. Here’s how:

  • Proper Shielding Gas: Use high-purity argon or a mix of argon and helium as a shielding gas. This helps prevent oxidation and stabilizes the arc. Inadequate shielding can allow air contamination, which increases porosity. Ensure consistent gas coverage throughout the weld area.
  • Control Heat Input: Porosity often results from the rapid evaporation of zinc (from the brass alloy) due to high temperatures. Use moderate power settings and shorter pulse durations if using pulsed lasers to minimize overheating. A controlled and steady energy input reduces vaporization and helps zinc escape without forming gas bubbles.
  • Preheating the Brass: Preheating the workpiece to a moderate temperature (typically 150-300℃) helps reduce the temperature gradient during welding, lowering the chance of thermal shock and gas entrapment. This is especially useful in thicker sections.
  • Use of Filler Material: In some cases, adding a compatible filler wire with a slightly different composition can dilute the zinc content in the weld zone, which reduces porosity. Silicon-bronze fillers, for example, can be beneficial when joining brass components.
  • Proper Joint Fit-Up: Gaps between parts can trap air or allow more vaporized zinc to form. A close, uniform joint fit-up ensures better fusion and reduces the likelihood of gas being pulled into the weld pool.
  • Optimized Welding Speed: Too fast, and the weld may not fully form; too slow, and excessive heat buildup leads to boiling and outgassing. Finding a balanced travel speed is critical. Practice on sample material is often needed to dial in the best parameters.
  • Surface Preparation: Remove contaminants like oil, paint, or oxides from the brass before welding. Dirty surfaces can introduce gas into the weld pool and worsen porosity. Mechanical cleaning or chemical etching may be used, followed by degreasing.
  • Vacuum or Inert Welding Chamber (for critical parts): For high-precision applications, welding inside a sealed, controlled environment—such as an argon-filled glovebox—can drastically reduce porosity by eliminating air.

Laser welding brass requires careful balancing of power, speed, and gas protection. When these factors are controlled, it’s possible to produce strong, clean, and low-porosity welds suitable for both decorative and structural applications.
Laser welding brass requires careful gas selection to protect the weld from oxidation and minimize porosity—two of the most common issues due to brass’s zinc content and high reflectivity. The shielding gas plays a critical role in stabilizing the process and improving weld quality. Here’s how it works and which gases are commonly used:

  • Argon (Ar): Argon is the most commonly used shielding gas for laser welding brass. It’s inert, meaning it doesn’t react with the molten metal, and provides excellent coverage around the weld pool. It helps prevent oxidation and keeps the laser stable during operation. For most brass welding tasks—especially where cost is a concern—pure argon is the go-to choice.
  • Argon-Helium Mixtures: In some applications, a mixture of argon and helium is used. Adding helium improves heat conduction and penetration depth, which is useful when welding thicker brass or when dealing with highly reflective surfaces. The helium content can range from 25% to 75%, depending on the weld requirements.
  • Nitrogen (N2): Although less common, nitrogen may be used in specific controlled settings, especially when welding brass alloys with lower zinc content. However, its use is limited because nitrogen can sometimes react with copper-rich materials, potentially causing brittleness or discoloration.
  • Why Shielding Gas Matters: Brass contains zinc, which vaporizes at a lower temperature than copper. If not properly shielded, zinc vapor can oxidize and cause porosity or discoloration in the weld. Shielding gas also improves energy coupling between the laser and the workpiece, reducing spatter and increasing weld smoothness.

For laser welding brass, pure argon is most widely used due to its effectiveness, availability, and affordability. In more demanding or high-precision applications, argon-helium blends may be preferred to improve weld quality and penetration. The right gas selection depends on the brass alloy, part thickness, weld complexity, and production goals.
Laser welding brass produces smoke and metal vapors—especially zinc fumes—due to the material’s composition and low vaporization temperature of zinc compared to copper. These emissions aren’t just unpleasant; they pose health risks and can affect weld quality. Here’s how to effectively handle the smoke generated during the laser welding of brass:

  • Fume Extraction Systems: Brass contains zinc, which vaporizes under laser heat and generates white smoke rich in zinc oxide. Without proper ventilation, this smoke can cause eye irritation, respiratory issues, and even metal fume fever. Installing a local exhaust ventilation (LEV) system or fume extractor with HEPA and activated carbon filters near the weld zone is essential. These systems capture and neutralize airborne particles before they spread through the workspace.
  • Enclosed Workstations with Downdraft Tables: For higher-power or automated laser welding setups, enclosed welding chambers or downdraft tables offer a more controlled environment. These setups pull contaminated air downward or outward, keeping the fumes away from the operator’s breathing zone and improving visibility over the weld seam.
  • Shielding Gas Optimization: While argon or argon-helium blends are standard shielding gases, they don’t eliminate smoke. However, optimizing gas flow can reduce turbulence that allows fumes to linger. A proper gas nozzle design and direction can help push smoke away from the laser beam path and the extraction zone.
  • Material Preparation: Contaminants like oil, paint, or plating can increase smoke production. Pre-cleaning the brass surface with acetone or a wire brush reduces unwanted residues and lowers the amount of harmful byproducts generated during welding.
  • Personal Protective Equipment (PPE): Even with good ventilation, welders should wear respiratory protection, especially when working with brass alloys high in zinc. A PAPR (Powered Air-Purifying Respirator) is recommended for prolonged exposure or confined spaces.

Effectively managing the smoke from laser welding brass requires a combination of mechanical fume extraction, clean material preparation, optimized shielding gas flow, and appropriate personal protection. This not only ensures operator safety but also results in cleaner welds, better visibility, and longer equipment life.
Brass pre-cleaning plays a critical role in the quality and consistency of laser welds. Because brass is an alloy primarily composed of copper and zinc, its surface condition directly affects how the laser beam interacts with the material. Contaminants like oils, oxides, dirt, and residues can interfere with energy absorption, shielding gas coverage, and melt pool stability.

  • Removes Contaminants That Cause Porosity: Brass surfaces often accumulate machining oils, grease, or oxidation layers. If left untreated, these contaminants can vaporize under the intense laser beam and become trapped in the weld pool, creating gas porosity and weakening the joint. Pre-cleaning with acetone, alcohol-based solvents, or alkaline degreasers eliminates these issues and reduces fume generation.
  • Reduces Spatter and Smoke Formation: Dirty brass produces more smoke during welding due to surface impurities burning off, especially if zinc oxide is present. This not only obscures the laser path but also increases lens contamination and maintenance needs. A clean surface ensures smoother energy coupling and more predictable melt flow, minimizing spatter, soot buildup, and fume emissions.
  • Improves Energy Absorption and Weld Consistency: Polished or oxide-free brass reflects less laser light and absorbs heat more effectively. This results in a more stable keyhole, better penetration, and improved weld bead shape. Inconsistent surface conditions can lead to variation in penetration depth, affecting structural reliability.
  • Enhances Shielding Gas Efficiency: A clean surface allows the shielding gas (typically argon or helium) to flow smoothly across the weld area, protecting the molten pool from atmospheric contamination. Contaminants disrupt this gas flow, leading to oxidation, discoloration, and increased weld defects.

Pre-cleaning brass before laser welding is not just a good practice—it’s essential for achieving high weld quality, minimizing defects, and maintaining process stability. Clean metal ensures the laser performs efficiently, produces consistent joints, and reduces the risk of costly rework.

Get Brass Welding Solutions

Achieve flawless, high-strength welds with our brass laser welding machines, designed specifically for the unique properties of brass. Our advanced laser welding technology ensures precise control over heat input, resulting in clean, strong joints with minimal distortion. Whether you’re working with thin or thick brass materials, these machines deliver exceptional performance, making them ideal for industries such as electronics, jewelry, automotive, and engineering.
Brass can be challenging to weld due to its varying composition and tendency to form oxides, but our machines excel in providing accurate heat control, minimizing oxidation, and ensuring a smooth, polished finish. The laser welding process reduces the need for additional post-weld cleaning and finishing, saving both time and resources.
With flexible settings, high precision, and reliable durability, our brass welding solutions are designed to meet the demands of high-quality, high-volume production. From intricate designs to large-scale applications, our machines guarantee efficiency, precision, and long-lasting performance for all your brass welding needs.
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