Laser welding is a highly efficient and precise welding method using a high energy density laser beam as the heat source. In the thin plate welding industry, handheld laser welding machine with the advantages of simple operation, high efficiency and flat welding seam has become the market's preferred industry technology. Laser welding machine welding heat-affected area is small, the material is not deformed, and no subsequent processes are required. The laser beam is easy to guide and focus, allowing for a full range of transformations. Laser welding has high production efficiency, stable and reliable processing quality, and good economic and social benefits.
Laser welding system is an advanced welding process. The welding seam is deep and narrow, the weld is bright and beautiful, and the heat input is minimal. Due to the high power density, the melting process is extremely fast, the heat input to the workpiece is extremely low, the welding speed is fast and the thermal deformation is small. During the generation of the weld, the molten pool is constantly stirred, and the gas easily escapes, producing a porosity-free weld. After welding, the cooling speed is fast, easy to make the weld organization slightly refined, weld strength, toughness and high overall performance.
Due to the small spot of the fiber laser welding machine, the weld seam is positioned with high accuracy, the beam is easy to transmit and control, and it is not necessary to change the welding gun and nozzle frequently, which greatly reduces the downtime assistance time. Since the energy comes from the laser and has no physical contact with the workpiece, it has no power to apply to the workpiece. In addition, magnetic fields and air have no effect on the laser. Processing costs can be reduced due to the low average heat input and high processing accuracy. In addition, the low cost of laser welding reduces the cost of the workpiece. Easy to automate, effective control of laser intensity and fine positioning.
Laser welding of metals is one of the important aspects of laser material processing technology. Many factories now have welding needs, but the technology still follows the old traditional welding methods. With the use of laser welding systems, many companies have seen a great improvement in labor costs, work efficiency and product quality, and thus have gained the approval of many factories.
Faced with the emergence of new products, many companies are currently taking a wait-and-see attitude, not knowing whether they can meet their needs. Today we will talk about what materials can be welded by fiber laser welding machine?
1. Stainless steel
Stainless steel has a high coefficient of thermal expansion. When welding, it is easy to overheat phenomenon. When the thermal shock area is slightly larger, it can cause serious deformation problems. In addition, the relatively low thermal conductivity of stainless steel, high energy absorption and melting efficiency, good, smooth and beautiful weld seam after welding.
2. Carbon steel
The use of handheld laser welding machine can directly weld ordinary carbon steel, the effect is comparable to stainless steel welding, heat-affected area is smaller. Preheating and heat preservation after welding to eliminate stress and avoid cracking.
3. Mold steel
Handheld laser welding machine is suitable for welding various types of mold steel, the welding effect is very good.
4. Aluminum and aluminum alloy
Aluminum and aluminum alloys are highly reflective materials, and molten pools may appear in the weld pool or at the root. Compared with the previous types of metal materials, aluminum and aluminum alloy will be more demanding. However, by choosing the right laser welding parameters, it is possible to obtain a weld with comparable mechanical properties to the base material.
5. Copper and copper alloys
Copper is a very strong thermal conductivity, welding is prone to welding intolerance and local melting. Usually copper materials are heated to assist in welding. Here I am talking about thin copper materials. Direct welding, because of its energy concentration, welding speed, copper's high thermal vitality, the impact on its small.
6. Welding between dissimilar materials
Handheld laser welding machine can be welded between a variety of dissimilar metals, such as copper - nickel, nickel - titanium, copper - titanium, mild steel - copper, etc.. Welding can be carried out under certain conditions (gas or temperature).
Most people who have not been exposed to laser welding systems will think that they can only weld stainless steel, but laser welders have a very wide range of applications compared to other welding equipment. Applicable materials include carbon steel, die steel, alloy steel, stainless steel, titanium, nickel, tin, copper, aluminum, chrome, gold, silver and other metals and their alloys.
Laser welding machine is widely used in kitchen and bathroom industry, home appliance industry, advertising industry, mold industry, stainless steel products industry, stainless steel engineering industry, doors and windows industry, handicraft industry, household goods industry and other common materials, furniture industry, auto parts industry and other common welding materials.
