Advantages Of Laser Welding Stainless Steel

Table of Contents

Application Prospect of Laser Welding Stainless Steel

Laser welding is the use of high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, and the material is melted to form a specific molten pool to achieve the purpose of welding. Laser welding stainless steel machine, also known as laser welding machine and laser welding machine, is a machine for laser material processing. It is divided into laser mold welding machine, automatic laser welding machine, laser spot welding machine, optical fiber transmission Laser welding machine.

Laser welding is a new type of welding method, mainly for the welding of thin-walled materials and precision parts, and can realize spot welding, butt welding, stitch welding, sealing welding, etc. , Small deformation, fast welding speed, smooth and beautiful welding seam, no need or simple treatment after welding, high welding seam quality, no pores, precise control, small focusing spot, high positioning accuracy, easy to realize automation.

In general, laser welding stainless steel is easier to obtain high-quality joints than conventional welding. Due to the high welding speed and small heat-affected zone of laser welding, the overheating phenomenon and the adverse effect of the large linear expansion coefficient during welding of stainless steel are alleviated, and the welding seam has no defects such as pores and inclusions. Compared with carbon steel, stainless steel is easier to obtain deep penetration narrow welds due to its low thermal conductivity, high energy absorption rate and melting efficiency. Laser welding stainless steel sheet with a low-power laser machine can obtain joints with good appearance and smooth and beautiful welds.

Stainless steel is a very common material that we often encounter in our daily life. With the continuous expansion of the stainless steel market, the consumption of stainless steel plates has also increased year by year, and stainless steel plates have also penetrated into various manufacturing fields, so laser Welding stainless steel sheet has also become an important process in production. However, the welding process characteristics of stainless steel sheet itself determine the difficulty of welding. The best stainless steel sheet can be welded by laser welding 0.1MM, and the size of the laser spot can be adjusted arbitrarily, which can be well controlled. The deformation ratio is also not there. Therefore, laser welding stainless steel machine is undoubtedly the best choice to solve stainless steel sheet welding.

Precautions for material selection of laser welding stainless steel machin

(1) If the base metal of the material to be welded is the same, the first criterion is “match with base metal”. For example, when welding 310 or 316 stainless steel, select the corresponding welding material.

(2) If laser welding stainless steel is used to weld dissimilar materials, follow the guideline of selecting a base metal with high alloying element content. For example, when welding 304 and 316 stainless steel, choose 316 type welding material.

(3) There are many special cases that do not follow the principle of “matching the base metal”, at this time, it is necessary to “check the welding material selection table”. For example, Type 304 stainless steel is the most common base metal, but there are no Type 304 electrodes.

Welding characteristics of laser welding stainless steel machine

1. High output power, stable energy, good beam pattern and simple operation.

2. Laser power feedback control system to ensure the stability of laser energy output.

3. The use of British imported ceramic concentrator cavity, corrosion resistance, high temperature resistance, long service life.

4.laser welding stainless steel machine is widely used in battery industry, IT industry, electronics, optical communication industry, sensor industry, hardware industry, auto parts industry, mold maintenance welder industry, jewelry industry, glasses industry, solar energy industry, power industry, etc. .

laser stainless welding sample

Why choose laser welding stainless steel machine to weld stainless steel

Stainless steel products are everywhere in our lives, ranging from airplanes, ships, automobiles, industrial production lines, to medical equipment, gold and silver jewelry, and so on. The traditional welding methods of stainless steel products are argon arc welding, resistance welding, etc., but there are many defects, cracks and heat effects, etc., but using a laser welding machine to weld stainless steel will not have so many problems, so now we Laser welding of stainless steel is generally used. So what are the advantages of laser welding stainless steel over traditional stainless steel welding?

(1) Advantages of laser welding stainless steel machine

The laser welding machine has fast welding speed, large depth and small deformation; very little heat is generated during the welding process, which can avoid thermal deformation in the welding seam area; the welding surface is neat, the welding seam quality is high, the overall appearance is beautiful, and there are no pores. Welding does not require polishing.

The laser welding machine can be welded at room temperature or under special conditions, and the laser welding equipment is simple; it can weld refractory materials such as titanium, etc., and can weld heterosexual materials with good results. After the laser is focused, the power density is high. When welding high-power devices, the aspect ratio can reach 5:1, and the maximum can reach 10:1.

Laser welding can be used for micro-welding. After the laser beam is focused, a small spot can be obtained, and it can be accurately positioned. It can be applied to the assembly welding of micro and small workpieces in mass automatic production; it can weld hard-to-reach parts and implement non-standard welding. Contact remote welding with great flexibility. The laser beam is easy to realize the beam splitting according to time and space, and it can perform multi-beam simultaneous processing and multi-station processing, which provides conditions for more precise welding. So this is the best laser welding machine for stainless steel.

(2) The advantages of laser welding of stainless steel:

1. Fast speed, large depth and small deformation.

2. It can be welded at room temperature or under special conditions, and the laser welding equipment is simple. For example, when a laser passes through an electromagnetic field, the beam will not be deflected; the laser can be welded in vacuum, air, and a certain gas environment, and can be welded through glass or materials that are transparent to the beam.

3. It can weld refractory materials such as titanium, etc., and can weld different materials with good effect.

4. After the laser is focused, the power density is high. When welding high-power devices, the aspect ratio can reach 5:1, and the maximum can reach 10:1.

5. Micro-welding is possible. After the laser beam is focused, a small spot can be obtained, and it can be precisely positioned, which can be applied to the group welding of micro and small workpieces in mass automatic production.

6. It can weld hard-to-reach parts and perform non-contact long-distance welding, which has great flexibility. Especially in recent years, optical fiber transmission technology has been adopted in YAG laser processing technology, which has made laser welding more widely popularized and applied.

7. The laser beam is easy to realize beam splitting according to time and space, and it can perform multi-beam simultaneous processing and multi-station processing, which provides conditions for more precise welding

8. Laser welding stainless steel machine can not only weld stainless steel products, but also repair molds, gold jewelry, silver jewelry, stainless steel jewelry, wear and tear of parts, watch parts, parts welding of mobile phone stainless steel shells, and various stainless steel kettle spouts. Welding of stainless steel bathroom products, laser welding of advertising characters, welding of silicon steel sheet motors, laser welding processes have been used in more and more fields.

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