Understanding YAG Laser Welding Machines and Their Chiller Configuration

How YAG Laser Welding Machines Work
YAG laser welding machines generate a 1064nm wavelength laser beam by electrically or lamp-pumping YAG crystals to excite chromium ions. The resulting laser is focused onto the workpiece surface via an optical system, melting the material to form a molten pool. Once cooled, the material solidifies into a weld seam, completing the welding process.

Types and Applications of YAG Laser Welding Machines

YAG laser welders are classified by laser source, pulse mode, and application:

1) By Laser Type: Lamp-pumped YAG lasers offer lower cost and are suitable for general welding applications. Diode-pumped YAG lasers* provide higher efficiency and longer service life, ideal for precision welding.

2) By Pulse Mode: Q-switched pulsed YAG lasers deliver high precision, suitable for micro-welds and specialty materials. Standard pulsed YAG lasers offer broader versatility and cost-effectiveness.

3) By Application Field: 

* Automotive manufacturing: Welding of body frames and engine components. 

* Electronics manufacturing: Welding of chip leads and circuit traces.

* Hardware industry: Joining of metal fittings for doors, windows, and furniture.

* Jewelry industry: Precision welding of precious metals and gemstones.

Importance of Chiller Configuration for YAG Laser Welders

YAG laser welding machines generate substantial heat during operation. Without effective heat dissipation, laser temperature can rise, leading to power instability, reduced welding quality, or even equipment damage. Therefore, a reliable water chiller is essential for maintaining optimal operating temperature and ensuring consistent welding performance.

Key Factors in Choosing a Laser Chiller

To ensure optimal performance and reliability, consider the following when selecting a laser chiller for YAG laser welders:

1) Cooling Capacity: Match the chiller's cooling power to the laser's output to remove heat efficiently and quickly.

2) Temperature Control Precision: High-precision, intelligent control systems help maintain stable temperatures, minimizing welding defects caused by thermal fluctuations.

3) Safety and Alarm Features: Integrated protections, such as flow, over-temperature, and overcurrent alarms, safeguard the equipment.

4) Energy Efficiency and Environmental Compliance: Choose energy-saving chillers that use eco-friendly refrigerants to reduce operational costs and support sustainability goals.

Why Choose TEYU Chillers for YAG Laser Welding Machines

TEYU industrial chillers are engineered to meet the demanding cooling needs of YAG laser welding systems. They offer:

1) Efficient Cooling Performance: Fast and stable heat removal to prevent thermal overload.

2) Precise Temperature Control: Ensures optimal laser performance throughout the welding process.

3) Comprehensive Safety Features: Multiple alarm functions for fault-free operation.

4) Eco-Friendly Design: Low energy consumption and refrigerants compliant with green standards.

Source: https://www.teyuchiller.com/understanding-yag-laser-welding-machines-and-their-chiller-configuration

Is anti-freezer needed in YAG laser welding machine closed loop chiller?

It is already the middle of November and the temperature in some places of the world has already dropped to 0 degree celsius or lower, which makes some of the YAG laser welding machine closed loop chiller difficult to start. What should be done to deal with this problem?

Well, users can add proportional anti-freezer into the closed loop chiller to prevent the circulating water from freezing. Note: users should turn to the chiller manufacturer for the proportion of the anti-freezer and should also think about the actual application of the chiller. For example, for laser diode water chiller and fiber laser water chiller, it is not suggested to add the anti-freezer, for they use de-ion water as the circulating water.

In respect of production, S&A has invested the production equipment of more than one million RMB, ensuring the quality of a series of processes from the core components (condenser) of industrial chiller to the welding of sheet metal; in respect of logistics, S&A has set up logistics warehouses in the main cities of China, having greatly reduced the damage due to the long-distance logistics of the goods, and improved transport efficiency; in respect of after-sales service, all the S&A water chillers are underwritten by insurance company and the warranty period is two years.

For more information about S&A closed loop chiller cooling YAG laser, click https://www.teyuchiller.com/standard-chillers_c3 

About S&A Brand
S&A(TEYU) was founded in 2002. After 16 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 60,000 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.

CONTACT S&A
SKYPE: teyuchiller
Email: marketing@teyu.com.cn
Website:  https://www.teyuchiller.com

S&A Industrial Chiller CW-6200 for Cooling 150W YAG Laser

Last Tuesday, Mr. Braman ordered S&A industrial chiller CW-6200 for cooling 150W YAG laser and required an extra deion filter to be equipped with the water chiller. S&A industrial chiller CW-6200 features the cooling capacity of 5100W and the temperature control accuracy of ±0.5℃.

In fact, Mr. Braman has cooperated with S&A for nearly 7 years. Back in the time of the first cooperation, Mr. Braman selected S&A water chiller by himself and found that the specifications of the water pump was not the expected one when he received the chiller. Although it was a mistake of Mr. Braman, S&A sent out the correct water pump to him for replacement. Mr. Braman was so moved by this and since then, the cooperation has lasted.

In respect of production, S&A has invested the production equipment of more than one million RMB, ensuring the quality of a series of processes from the core components (condenser) of industrial chiller to the welding of sheet metal; in respect of logistics, S&A has set up logistics warehouses in the main cities of China, having greatly reduced the damage due to the long-distance logistics of the goods, and improved transport efficiency; in respect of after-sales service, all the S&A water chillers are underwritten by insurance company and the warranty period is two years.

CONTACT S&A
SKYPE: teyuchiller
Email: marketing@teyu.com.cn
Website: www.teyuchiller.com
TEL:+86-20-89301885;  FAX:+86-20-84309967