Comparison of Handheld Laser Welding Machine And Traditional Welding Machine

In modern manufacturing, welding technology occupies a pivotal position. It is widely used in many fields such as automobile manufacturing, heavy industry, aerospace, shipbuilding and electronic products, and is one of the core processes for achieving metal structure connection and sealing. Welding not only ensures the structural strength and safety of the product, but also directly affects production efficiency and cost. Therefore, continuous innovation and optimization of welding technology has always been the goal pursued by the industry.

With the continuous advancement of science and technology, traditional welding technology faces new challenges, especially in terms of welding accuracy, speed and applicability of materials. As an emerging welding technology, handheld laser welding machine has gradually attracted market attention and recognition in recent years. Its efficient and precise welding performance enables it to show advantages over traditional welding methods in many application scenarios. The rise of laser welding technology not only opens up new possibilities for the manufacturing industry, but also points out the direction for the future development of welding technology.

Through an in-depth comparison of handheld laser welding machines with traditional welding machines, we will explore the revolutionary changes brought about by this emerging welding technology and its application potential in the industry. This will provide us with an important perspective to understand the development trend of modern welding technology.

1. Definition and working principle

Basic concept of handheld laser welding machine

Handheld laser welding machine is a new type of welding equipment. It uses laser as welding heat source and locally heats metal materials through high-energy laser beam to make them melt, so as to achieve welding connection. Compared with traditional welding equipment, handheld laser welding machine has higher flexibility and portability, and is suitable for welding operations in various complex environments, especially in small and delicate processing tasks.

Working principle of laser welding

The working principle of laser welding mainly includes the following steps:

Light source: Laser welding machine usually uses fiber laser or solid-state laser as light source, which can generate high-energy laser beam and form high-temperature area.

Focus Focusing: The laser beam is focused to a specific point through the lens to form a very small focus. The energy density at the focus is extremely high, so that the metal material quickly reaches the melting temperature and produces a molten pool.

Welding process: The laser beam moves rapidly on the surface of the material, and the molten metal forms a molten pool. Under the continuous action of the laser beam, the molten pool gradually cools and solidifies to form a strong weld. Since laser welding heats up quickly, it can effectively reduce the heat-affected zone, thereby reducing material deformation and stress concentration.

2. Main features

High-speed welding: The welding speed of handheld laser welding machines far exceeds that of traditional welding methods, which can greatly improve production efficiency and reduce processing time.

High precision: Since the laser beam has a high focusing ability, it can achieve micron-level welding accuracy, which is very suitable for the welding requirements of delicate workpieces and ensures excellent weld quality.

Flexibility and portability: The handheld design makes the welding machine easy to carry and suitable for various complex and narrow space welding tasks. In addition, the operation is simple, which reduces the technical requirements for operators.

3. Scope of application

Handheld laser welding machines are widely used in many industries, including but not limited to:

Automobile manufacturing: used for welding of automotive parts, such as body structure, exhaust system and motor parts, etc., which can improve welding quality and efficiency.

Electronic products: suitable for precision welding of electronic components, such as circuit boards, connectors and optical components, to ensure product stability and reliability.

Aerospace: In the manufacturing process of aircraft and spacecraft, due to the high requirements for welding quality and precision, laser welding has become an important connection process that can meet the performance requirements of high strength and high temperature resistance.

With its unique advantages, handheld laser welding machines are gradually changing the pattern of traditional welding processes and providing more flexible and efficient welding solutions for various industries. Click here for more information

1. Definition and working principle

Types of traditional welding machines

There are many types of traditional welding machines, mainly including the following common welding methods:

Arc welding: By forming an arc between the electrode and the workpiece, the high temperature of the arc is used to melt and connect the metal weldment. Arc welding can be further divided into manual arc welding and automatic arc welding.

Tiger arc welding (TIG welding): Using non-consumable electrodes and argon as a shielding gas, a high-temperature arc is formed during the welding process. TIG welding is suitable for welding thin metal materials and can produce high-quality welds.

Metallic arc welding (MIG welding): Arc welding is formed by continuously supplying metal welding wire and shielding gas. It is suitable for continuous welding operations and is often used in automated production.

General welding principle

In traditional welding, the welding principle usually includes the following steps:

Heat source generation: A high-temperature heat source is generated by an arc, welding rod or welding wire to heat the metal in the welding area to a molten state

Welding process: The molten metals fuse with each other to form a weld with high connection strength. Throughout the process, the control of the arc or heat source, the welding speed and the shape of the weld will affect the welding quality.

Cooling and solidification: After welding, the metal in the molten tank will cool and solidify rapidly to form a relatively stable weld, usually accompanied by a certain heat-affected zone, but relatively large.

2. Main features

Diversity and adaptability: There are many types of traditional welding technologies, and the corresponding welding methods can be selected according to different materials and welding requirements, with high adaptability.

Advantages of welding thick materials: Traditional welding technology has outstanding performance in the welding effect of thicker materials. Processes such as arc welding can generate larger heat input, thereby more effectively melting thick metals, which makes it occupy an important position in the manufacture of large structural parts.

3. Application range

The application range of traditional welding machines is wide, mainly including the following fields:

Large structural parts: In the welding of large structures such as buildings, bridges, and pressure vessels, traditional welding is widely used due to its strong welding performance and adaptability.

Heavy industry: In industries such as petroleum, chemical industry and metallurgy, traditional welding plays an important role in the manufacture and maintenance of heavy equipment.

Shipbuilding: As the hull is usually made of thick steel plates, the high strength and durability of traditional welding make it the main connection method in ship production.

Machinery and equipment manufacturing: Widely used in the assembly and maintenance of various types of machinery and equipment, traditional welding can meet the requirements of different materials and structures.

Traditional welding machines still occupy an important position in many fields, and with their unique advantages, they provide strong support for the stability and development of the manufacturing industry.

1. Process complexity:

Welders need to have a high level of skills, and lack of operator experience can easily lead to welding defects (such as pores, slag inclusions, uneven welds, etc.).

2. Slow welding speed:

Compared with automation and modern welding technology, traditional welding is usually slower, which reduces production efficiency and increases production cycle.

3. Large heat-affected zone of materials:

The heat-affected zone (HAZ) produced by welding will cause changes in the properties of surrounding materials, such as hardening and embrittlement, which may cause deformation and stress concentration, affecting the mechanical properties of the final product.

4. Limited applicable materials:

Although a variety of metals can be welded, the welding performance of some high-alloy materials or certain special materials is poor, which limits their application range.

5. Welding quality is related to environmental factors:

The welding process is affected by environmental factors such as temperature, humidity, and cleanliness, which may lead to unstable welding quality.

6. High post-processing requirements:

After welding, post-processing steps such as grinding and slag removal are often required, which increases process and labor costs.

7. Safety risks:

Traditional welding processes have safety hazards such as fire, burns and harmful gases, and additional safety protection measures need to be taken.

Although traditional welding technology still has application value in some fields, its limitations have prompted companies to explore more advanced welding technologies to improve efficiency, quality and safety.