Metglas is a highly specialized material used in a variety of industries, including aerospace, electronics, and medical technology. Its unique properties make it an ideal choice for applications that require high-performance materials, such as chemical etching. In this article, we will explore the specific features of Metglas as a material in chemical etching and delve into common Metglas alloys used in the market.

Characteristics when chemically etching Metglas:

Metglas is a highly ductile material that can be easily etched using chemical methods. Some of its notable characteristics during chemical etching include:

High corrosion resistance: Metglas has excellent resistance to corrosion, making it an ideal material for etching applications. It can withstand prolonged exposure to acidic solutions used in the etching process without degrading its integrity.

Low magnetic loss: Metglas has a low magnetic loss, making it an ideal choice for applications where magnetic interference is a concern. This feature ensures that the material maintains its magnetic properties, even after being etched.

Easy to etch: Metglas is a relatively soft material, which makes it easier to etch than other metals like stainless steel. This property also enables the use of less aggressive etchants, which reduces the likelihood of undercutting and other undesirable effects.

Characteristics of Metglas:

Apart from the above features, Metglas has other notable characteristics, which make it a popular material in many industries. These include:

High magnetic permeability: Metglas has a high magnetic permeability, which makes it an ideal choice for applications requiring high magnetic flux density.

Low coercive force: Metglas has a low coercive force, meaning that it requires less magnetic field strength to magnetize the material. This feature makes it suitable for applications requiring fast switching of magnetic fields.

Difference between traditional sheet metal precision processing VS Chemical etched sheet metal processing

VECO’s video to learn what metal etching is.

Comments related to etching technology:
From @chadr2604:
There is another way it involves stacking many layers of very thin material with an There is another way it involves stacking many layers of very thin material with an adhesive, pressing the stack, then either stamping or punching the blank then heating it to release the adhesive. The parts will not be as accurate the tolerance is limited to about .002″ but if its good enough its much faster.
From @chadr2604:
If you try to cut that stack with a laser you will just start a fire we had an aluminum fire trying that.

Modern precision sheet metal fabrication includes a common technique known as etching, which differs from traditional sheet metal fabrication in several ways. Here are some key differences between etching and traditional precision sheet metal fabrication:

  1. Principle: Traditional sheet metal fabrication typically involves mechanical processes such as cutting, bending, and punching to shape and form metal sheets. Metal etching by Metal Etching Machine , on the other hand, is a chemical process that uses specialized etchants to selectively corrode the metal surface, achieving precise etched patterns and features.
  2. Accuracy and Complexity: Etching offers advantages in terms of precision and complexity. By controlling the composition, concentration, temperature, and etching time of the etchant, extremely fine etching can be achieved with accuracy down to sub-micron levels. Additionally, etching allows for the creation of intricate geometries, microstructures, and patterns that may be difficult to achieve using traditional mechanical methods.
  3. Processing Speed and Cost: Etching generally offers faster processing speeds, particularly in large-scale production. In comparison, traditional mechanical fabrication methods may require more time and cost to achieve the same level of precision and complexity.
  4. Materials Compatibility: Etching techniques are applicable to a range of metal materials, such as copper, aluminum, stainless steel, and titanium. Traditional sheet metal fabrication methods may have limitations when it comes to certain materials or thicker metal sheets.
  5. Design Flexibility: Etching provides greater design flexibility. By incorporating techniques like photolithography or screen printing during the etching process, complex patterns and structural designs can be achieved. This makes etching suitable for applications in microelectronics, optical devices, microfluidic devices, and more.

Common Metglas Alloys:

There are numerous Metglas alloys available in the market, each with unique characteristics that make them suitable for specific applications. Some of the common Metglas alloys include:

2714A: This alloy is commonly used in aerospace applications due to its high magnetic permeability and low coercive force. It is also highly resistant to corrosion.

2605SC: This is a high-performance Metglas alloy that is commonly used in electronics and medical technology. It has excellent magnetic properties and is highly resistant to corrosion.

2826MB: This alloy is commonly used in transformer cores and other magnetic components. It has a high magnetic permeability and is highly resistant to corrosion.

In conclusion, Metglas is a highly specialized material with unique characteristics that make it an ideal choice for chemical etching applications. Its high corrosion resistance, low magnetic loss, and ease of etching make it a popular choice in various industries. Additionally, the numerous Metglas alloys available in the market make it possible to select the most suitable alloy for specific applications.

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