Unknown things about fish welding techniques

What is evaluation technique?

As you understand, what is fish scale welding technique. It is also known as dragon scale welding, one of the highly aesthetic welding methods, creating welds with evenly stacked metal scales like fish scales, giving the product a sophisticated appearance. 

In this technique, the intermediate metal layer plays the role of connecting two metal surfaces. Under the influence of heat, this metal layer penetrates deeply, adheres tightly to the welding object, fills the gaps and then solidifies to form a strong fish scale weld.

Fish scale welding is present in many fields, from manufacturing electronic components, machinery, cars, ships to everyday tasks such as repairing radiators, gas pipeline systems or refrigeration equipment. 

- This method has two outstanding features: 

+ Does not require the base metal to be completely melted, only the filler metal needs to be melted to create a bond. 

+ No need to bevel the edges thanks to the capillary phenomenon that helps the filler metal to automatically fill the gaps, ensuring a strong weld.

Classification of fish scale welding

Soldering techniques are divided into two groups based on the melting temperature of the solder material.

Group of soft welding scales

This type of solder has a melting point below 45°C, suitable for applications that do not require high durability and heat resistance. Soft solder is often used to join parts that only need simple connections or work in low temperature environments. Tin solder and some special compounds are popular choices in this group.

Hard welding scale group

Solder has a melting point above 45°C, is characterized by its hardness and good resistance to force. This is a suitable choice for parts that have to work in harsh conditions, bear heavy loads or high temperatures. Brass, silver, aluminum and nickel are common solder materials, providing strong connections for strict technical requirements.

Which welding machine should be chosen to weld fish scales ?

The brazing technique can be applied to many different types of surfaces, from common metals such as copper, aluminum, nickel to their alloys, and even special materials such as graphite, semiconductors, or ceramics. This makes the technique flexible and meets many needs in processing and repair.

To create even and beautiful fish scale welds, ensuring that the weld is protected from the effects of air during the welding process is a key factor. Shielding gas plays an important role in helping the weld be clean, not oxidized and achieve high durability. Among the current machine lines, TIG welding machines are often prioritized by workers when wanting to perform fish scale welding thanks to their ability to control the arc well and high precision, thereby creating a weld that is both durable and aesthetic.

See related articles: The nature of tig welding machine and advantages?

Introducing two types of Tig welders with reasonable prices today:

Jasic Tig Welding Machine 200A W223

Jasic Tig 200A W223 is a 2-function welding machine, supporting both TIG welding and stick welding, with a TIG welding current adjustment range from 10A to 200A and stick welding from 10A to 180A. Although versatile, the machine's strongest point is still its TIG welding ability. HF arc ignition technology makes arc initiation easier, thereby making fish scale welding operations smoother, with more even and beautiful welds. 

With the ability to weld materials from 0.5mm to 8.0mm thick, the Jasic Tig 200A W223 machine is suitable for many needs from manufacturing to repair, providing fish scale welds that are both strong and highly aesthetic.

HK TIG 200E Inverter Tig Welding Machine

HK TIG 200E is a multi-function welding machine that is favored by many welders. The machine has an output capacity of 7 KVA, welding current from 10A to 200A and operating efficiency of 85%, meeting the needs of TIG welding and stick welding. With welding rods, the machine can work continuously with 1.6mm rods and 3.2mm rods when needed. 

In TIG welding mode, HK TIG 200E provides stability and good arc control, supporting the worker to create even and beautiful fish scale welds. This is a suitable choice for both jobs that require high aesthetics and durability of the weld.

See more at: EMIN Tig welding machine

Conclude:

Hopefully the above sharing will help you grasp the steps to create beautiful fish scale welds with an electronic welding machine. If you want to learn more about mini stick welding machines or MIG and TIG welding machines, or are still wondering about the parameters and how to choose the right machine for your needs, you can contact us for quick answers and support.