In metal processing, welding is a process with a very large amount of application, from carbon steel, stainless steel to copper, aluminum alloy and other industries, welding processing can be seen everywhere. At present, the most commonly used one is arc welding. Laser welding machines have penetrated into various factory workshops and roadside metal processing stores. They are used in kitchen utensils, bathrooms, door and window guardrails, etc. There are thousands of yuan per set of electric welding machines. in millions.

However, there are some disadvantages in traditional electric welding, which makes some young people less and less choose to work in the welder industry. The emergence of handheld laser welding just overcomes the shortcomings of traditional electric welding and provides an alternative. Therefore, the demand for handheld laser welding is very hot in recent years.

1. Pain points of traditional electric welding

The disadvantages of traditional electric welding are first of all the hazards from metal fumes. A large amount of metal fumes will be generated during the welding process. These fumes contain iron, carbon, manganese, chromium, nickel, silicon and other heavy metal elements, as well as iron oxide, manganese oxide, oxide compounds such as titanium. The particles of these substances are very small and are easily inhaled into the lungs, causing fibrosis and inflammation of lung tissue, which may cause symptoms such as dyspnea, chest tightness, coughing, and hemoptysis. Electric welding also produces a large amount of toxic gases, such as ozone, carbon monoxide, nitrogen oxides, hydrogen fluoride, etc. These gases have a strong stimulating and corrosive effect on the human respiratory tract and lungs.

Secondly, arc light is produced when electric welding is used, which includes three spectra of infrared, visible and ultraviolet. Among them, ultraviolet rays are the most dangerous to the human body. It can penetrate the cornea and conjunctiva of the eye, damage the lens and retina of the eye, and cause eye diseases such as keratoconjunctivitis, cataract, and vision loss.

It is precisely because people's awareness of health issues has increased that it is very difficult to recruit welders. It is tiring and hard work, and the working environment is not good. Young people are not willing to do it.

2. Handheld laser welding instead of electric welding has become a trend

Since the emergence of handheld laser welding in 2018, it has received great attention and has shown geometric growth for several consecutive years. It has become the fastest growing subdivision of laser equipment and has become the largest batch of laser equipment after marking machines and cutting machines. Variety of equipment.

Hand-held laser welding is the same as traditional electric welding, with high flexibility, no need for mechanical fixtures, and easy operation. Laser seam welding in continuous strip shape is nearly ten times more efficient than arc spot welding, saving time and labor. Moreover, the hand-held welding head has been improved from more than 2kg to about 700g today. For welder operations, long-term operations will not cause fatigue easily, and the practicability is very strong.

Traditional electric welding requires welding rods, while laser welding does not require welding rod fillers, which greatly reduces the generation of metal fumes and harmful gases, and is relatively more secure for human health. Laser welding also produces sparks and high-brightness reflected light. Strictly speaking, laser welding requires special protective glasses, or the workbench needs to be placed in a protective cover.

3. Prediction on the follow-up development of handheld laser welding

Due to the large continuous demand for batches, some laser companies have also joined in the production of handheld laser welding equipment. The companies that originally produced marking machines and cutting machines have already joined in. Hand-held laser welding equipment is still being improved, with smaller volume and lighter weight. In the future, it will be similar to the current small electric welding machine, and can be directly pulled to the construction site for on-site processing.

The purchase cost of handheld laser welding equipment still has some room for reduction in the future, but it will not be on par with ordinary welding machines. Laser welding will continue to replace the application market of traditional welding machines and become a more popular equipment model in the metal processing field.

Before hand-held laser welding, there was hand-held laser cleaning. Later, some manufacturers introduced hand-held marking and hand-held cutting, but none of them formed batches. Only hand-held welding does not require precise processing requirements, which caters to market versatility, resulting in explosive growth.

In general, handheld laser welding has the characteristics of high efficiency, energy saving and environmental protection. While continuously replacing traditional welding processing methods, it improves the overall efficiency and environmental protection performance of the entire society.