Working principle and categories of laser metal cutting

 Metal laser cutting is one of the most important applications of laser processing. With the development of fiber lasertechnique, metal laser cutting machine will gradually replace traditional metal cutting device.

Metal laser cutting is quite different from traditional metal cutting in working principle. Metal laser cutting indicates posting laser light beam to the surface of the metal part. Then the metal part will melt or evaporate so that cutting and engraving purpose can be fulfilled. Laser cutting has many advantages, such as high speed, material saving, low operation cost and smooth cutting/engraving edges. 

Based on the working principle, metal laser cutting can be categorized into 3 types:

1.Cutting through evaporation

This indicates using high energy and high density laser beam to heat up the metal . The metal part that absorbs the laser beam will evaporate in a short time and become vapor, leaving a cut on the metal surface. Since heat of evaporation is generally big, this kind of laser cutting requires laser beam of high power and high density

2.Cutting through melting 
With this kind of laser cutting, the metal material will melt down after absorbing the heat from the laser. It only needs the 1/10 energy of the first cutting type. It is mainly used to cut dysoxidizable or reactive metals, such as stainless steel, titanium, aluminum and its alloy. 

3.Oxygen cutting
It uses laser as the preheating source and use reactive gas like oxygen as the cutting air. Using this kind of laser cutting, the cutting speed is much faster than the cutting through evaporation and melting. Oxygen cutting is commonly used to cut oxidizable metal materials such as carbon steel, titanium steel and heat treatment steel. 

As the major laser source of metal laser cutting machine, fiber laser plays an important role and needs special protection. And the ideal protection would be sufficient cooling by a laser cooling unit. S&A CWFL series laser cooling unit is specially suited for cooling fiber laser and is characterized by dual temperature control system. 

Find out more information about S&A CWFL series laser water chiller at https://www.teyuchiller.com/fiber-laser-chillers_c2

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Guangzhou Teyu Electromechanical Co., Ltd.

SKYPE: teyuchiller

Email: marketing@teyu.com.cn

Website: https://www.teyuchiller.com

Tel: + 86-20-89301885

Fax: + 86-20-84309967

About S&A Brand

S&A(TEYU) was founded in 2002. After 18 years of development, the headquarter covers an area of 18,000 square meters, and has about 250 employees.  

Why choose S&A

Product Advantages:

1. With 11 patent certificates，CE, RoHS and REACH approval; Conforms to air transport requirements; 2 years warranty;

2.±0.1℃ high precision temperature control, stable cooling performance,support 

ModBus-485 communication;

3. Establish logistic warehouses at USA and Europe;

Manufacturing Advantages:

1.Independent R&D on sheet metal, evaporator, condenser and cores parts of chiller;

2. Annual output 70,000 units, product exports rate above 60%；

3. Standard bulk production, standard parts rate up to 80% ；

4. With excellent laboratory testing system, simulates actual working environment for 

chiller.