Question 1

How to Solve The Difficulties of Fiber Laser Cutting?

Accepted Answer

Cutting Speed

Fast cutting speed is one of the advantages of laser cutting, but the cutting speed is not as fast as possible.

Watch The Cutting Sparks

When the cutting speed is appropriate, the cutting sparks are more evenly spread from top to bottom;

Observe The Cutting Sheet

When the cutting speed is appropriate, the cutting surface presents a relatively smooth line, and no slag is produced in the lower half.

Nozzle And Nozzle Height

The nozzle acts as a beam and auxiliary gas channel. The shape, aperture, and nozzle height of the nozzle will affect the cutting effect.

Protective Gas Pressure

The size of the auxiliary gas pressure also affects the cutting effect of the fiber laser cutting machine. Adjusting the air pressure can also improve the cutting effect:

Precautions For Turn Off The Laser Cutting Machine

First, move the cutting head to the highest point, and stop the X and Y axes at the safe position. Swap the bench or stop the bench in a safe location.

Question 2

How to Choose The Laser-Arc Hybrid Welding Machine?

Accepted Answer

Technical Background

Welding of medium and large thickness steel plates is mainly used in rail transit, shipbuilding, nuclear power equipment, and other industries.

Technical Characteristics

There are many forms of laser-arc hybrid welding, including Laser-MAG/MIG hybrid welding, Laser-TIG hybrid welding, laser-plasma arc hybrid welding, etc.

Applications

Aluminum Alloy Welding

Requirements: tailored welding of 5 mm and 6 mm aluminum alloys requires good weld formation and no undercut defects.

Welding of Medium And Thick Ship Plates

Requirements: Tailored welding of AH36 marine steel plates with thicknesses of 6 mm and 12 mm requires that the weld formation and weld quality meet the requirements of the Chinese Shipbuilding Quality Standard (GB/T 34000-2016).

Large Thickness Ship Plate Multi-Pass Welding

Requirements: 20 mm, 25 mm thick ultra-high-strength marine steel plates are tailor-welded, and the weld formation and weld quality are required to meet the requirements of the Chinese shipbuilding quality standard (GB/T 34000-2016).

Equipment And Process Parameter Suggestion

At present, for the laser-arc hybrid welding technology, there are very few practical applications in China, and there is no systematic achievement for the time being.

Question 3

What is the difference between a Laser cutting machine and a plasma cutting machine?

Accepted Answer

Diference 1: The difference in cutting thickness

The plasma cutting machine is a kind of thermal cutting equipment, which is more suitable for more than 6mm thickness and with low

precision requirement. In theory, the maximum thickness of a plasma laser cutting machine can reach hundreds of mm, but the optimal cutting range is about 80mm. Disadvantages of plasma cutting: It is not suitable for cutting below 3mm metal sheets, the slit is wide and the precision is poor, the cutting surface with poor perpendicular when cutting 5mm or more than 5mm thickness plate.

Diference 2: The difference in cutting quality

The cutting principle of the plasma cutting machine is to use high temperature plasma arc heat to melt the metal at the cutting part of the workpiece, and simultaneously blow away the molten metal with a high-speed air flow to form a narrow slit; the plasma cutting machine can cutting stainless steel, iron, aluminum, various metal materials.

Question 4

What are the working principle and characteristics of an electric welding machine?

Accepted Answer

The electric welding machine uses the high-temperature arc generated when the positive and negative poles are instantaneously short-circuited to melt the solder on the electrode and the material to be welded, and the purpose of combining the objects to be contacted. Its structure is very simple, it is a high-power transformer.

Electric welding machines can generally be divided into two types according to the output power source, one is AC power and the other is DC. They use the principle of inductance, the inductance will produce a huge voltage change when the inductance is turned on and off, and the high voltage arc generated when the positive and negative poles are short-circuited instantaneously is used to melt the solder on the electrode to achieve the purpose of atomic bonding.

Question 5

What is the advantage of a laser cutting machine?

Accepted Answer

During the laser cutting technique, there is a laser bar used to cut various materials like metal, plastic, wood, elastic, and so forth This innovation has become a fundamental piece of assembling measure. Laser cutting machines are furnished with PC-controlled programming that decides how and where the interface is coordinated in the material. Laser cutting administrations are important for any legitimate machining supplier since it offers and reasonable and precise method of creating practically any shape in the plate or sheet metal. Regardless of whether you require 2D or 3D laser cutting administrations, the exceptional machining shop will actually want to surpass your assumptions. In spite of the fact that lasers give incredible advantages, they additionally have a few impediments. Likewise, let see a portion of the benefits and hindrances that accompanies this innovation.

Benefits of laser cutting:

It is simpler to keep the workpiece in the correct position.

Short acquired by laser cutting doesn't take long and is incredibly exact. The entire cutting interaction is effortlessly accomplished in less time contrasted with customary scissors.

As the segment is delivered, there isn't immediate contact of the workpiece with a cutting device, bringing down the danger of polluting material.

In customary division measure, the warmth created during the way toward cutting ordinarily softens the material. In laser cutting, the warmth territory is exceptionally little, diminishing the chance of material twisting.

Weaknesses of laser cutting:

Productivity and force utilization relies upon the sort of area that should be done and the nature of the laser. Generally, laser cutting has high energy utilization.

Laser cutting of plastic parts can be costly in light of the fact that when presented to warm, plastic discharges gas. Thus, the laser cutting specialist co-op ought to have a very much ventilated room, which is very costly. Likewise, the gases delivered during the way toward cutting plastic can be destructive and harmful.

Not a wide range of metals can be cut with laser cutting. For instance, metals like copper and aluminum can't be cut utilizing this innovation.

The creation rate isn't reliable. All rely upon the kind of material utilized, the thickness of the workpiece, and the idea of laser cutting.

The setting of the temperature and the distance laser can prompt the ignition of certain materials.

Human mediation is required simply in the event of fixes and preliminary attempts. While these activities, laborer comes in close contact with the leaser pillar, which can cause consumes.

Question 6

Is laser cutting cost-effective?

Accepted Answer

Through the high-speed airflow coaxial with the beam to melt the material, the thermal cutting method of the metal sheet is opened. In metal processing, the main processing speed is fast, so that the cut surface is smooth; no burrs; high cutting accuracy, no need for secondary time-consuming processing and other advantages, before the user buys the laser cutting machine equipment, the first thing to consider is to buy a certain kind of power equipment, the biggest factor determining the power depends on the thickness of the processing material, the thicker the plate, the more difficult it is to cut, and the more power required. At present, there are the most concentrated HARSLE manufacturers on the market. Due to the mature technology and low threshold, various manufacturers aim to maximize profits.

For the laser cutting machine that is continuously developed and designed, well-known laser cutting machine brands must be selected for its low power. Medium-power and high-power laser cutting machine equipment not only requires high quality of the equipment itself, but also the cutting process parameters are technical issues, so medium power Manufacturers of low power are far lower than those of low power. After all, it is technical work, and professional manufacturers are the alternative manufacturers, which have great advantages in technology.

Question 7

Which industries use laser cutting?

Accepted Answer

The cases suitable for CO2 laser cutting machines mainly include special parts that require uniform cutting, stainless steel with a thickness of no more than three millimeters and non-metallic materials with a thickness of no more than 20 millimeters used in advertising, decoration and other service industries, and the other is the cutting contour The machining of complex but small workpieces is used to save the cost and cycle of making molds.

Metal fiber laser cutting machine is used in sheet metal processing, aviation, aerospace, electronics, electrical appliances, subway accessories, automobiles, food machinery, textile machinery, construction machinery, precision accessories, ships, metallurgical equipment, elevators, household appliances, craft gifts, tools Processing, decoration, advertising, metal external processing, kitchenware processing, and other manufacturing and processing industries. Stainless steel, carbon steel, alloy steel, silicon steel, spring steel, aluminum, aluminum alloy, galvanized sheet, galvanized sheet, pickling sheet, copper, titanium, and other metal sheet and pipe cutting.

Question 8

What is CO2 laser cutting machine?

Accepted Answer

CO2 laser cutting machine is a cutting equipment used in industrial production.

Introduction
In the field of non-metallic laser marking, solid-state laser marking machines and gas laser marking machines are common. Non-metallic laser cutting machines generally rely on laser power to drive the laser tube to emit light, and through the refraction of several reflectors, the light is transmitted to the laser head, and then The focusing mirror installed on the laser head gathers the light into a point, and this point can reach a very high temperature, so that the material is instantly sublimated into gas, which is sucked away by the exhaust fan, so as to achieve the purpose of cutting; generally laser cutting machines use The main gas filled in the laser tube is CO2, so this laser tube becomes a CO2 laser tube, and the laser cutting machine using this laser tube is called a CO2 laser cutting machine.

Industrial application
The world's first CO2 laser cutting machine was born in the 1970s. For more than 30 years, due to the continuous expansion of application fields and continuous improvement of CO2 laser cutting machines, many domestic and international enterprises have engaged in the production of various CO2 laser cutting machines to meet the needs of the market, including two-dimensional flat cutting machines, three-dimensional space Curve cutting machine, pipe cutting machine, etc. According to the statistics of the 2000 annual report of "Industrial LaserSolution", an authoritative magazine for the application of laser industry in the United States: in 1999, there were 3,325 laser cutting systems sold in the world, with a total of 1.174 billion US dollars. Although the development trend of laser cutting is fast, the application level is far behind that of developed countries. By 2003, the total number of CO2 laser cutting systems used in industrial production in my country has reached about 500, accounting for about 1.5% of the total number of operating systems in the world.

Question 9

How expensive is a laser cutter?

Accepted Answer

The material to be cut is irradiated with a high power density laser beam, so that the material is quickly heated to the vaporization temperature, and evaporates to form a hole. As the beam moves to the material, the hole continuously forms a narrow slit to complete the cutting of the material.

A metal laser cutting machine ranges from $26,000 to over $400,000! The bottom-end metal laser cutter can handle very small, low-volume projects. But for more standard commercial applications, you need a metal laser cutter that will likely exceed the $30,000 mark. Most companies turn to a metal laser cutting service instead.

Principle: Laser cutting is to irradiate the workpiece with a focused high-power-density laser beam, so that the irradiated material rapidly melts, vaporizes, ablates or reaches the ignition point, and at the same time, the molten material is blown away by the high-speed airflow coaxial with the beam, so as to realize The workpiece is cut. Laser cutting is one of the thermal cutting methods.
Generally speaking, the quality of laser cutting can be measured by the following 6 criteria.

1. Cutting surface roughness Rz
2. Size of slag hanging on the incision
3. The verticality and slope of the cut edge u
4. Cutting edge fillet size r
5. Stripe drag amount n
6. Flatness F

Question 10

What is a laser cutting machine used for?

Accepted Answer

The laser cutting machine focuses the laser emitted from the laser into a laser beam with high power density through the optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or gasified metal.

With the movement of the relative position between the beam and the workpiece, the material will finally form a slit, so as to achieve the purpose of cutting.

Laser cutting process uses invisible light beam to replace the traditional mechanical knife. It has the characteristics of high precision, fast cutting, not limited to the limitation of cutting pattern, automatic typesetting, material saving, smooth incision and low processing cost. It will gradually improve or replace the traditional metal cutting process equipment. The mechanical part of the laser cutter head has no contact with the workpiece and will not scratch the workpiece surface during operation; The laser cutting speed is fast, the incision is smooth and flat, and there is generally no need for subsequent processing; The cutting heat affected zone is small, the plate deformation is small, and the cutting seam is narrow (0.1mm ~ 0.3mm); the notch has no mechanical stress and shear burr; the machining precision is high, the repeatability is good, and the material surface is not damaged; NC programming can process any plan, which can cut the whole plate with a large format without opening a mold, which is economical and time-saving.

Laser Cutting Machine

Open-Type Laser Cutter

Closed-Type Laser Cutter

Sheet & Tube Laser Cutter

Tube Laser Cutter

Laser Welding Machine

Robot Cutting System