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The Weerg Blog collects up-to-date articles on 3D Printing and CNC Machining.

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CNC machining

Polyoxymethylene Copolymer

1 min read

POM‑C: What Is Polyoxymethylene Copolymer and Why Choose It?

POM‑C, also known as polyoxymethylene copolymer or acetal resin, is a high‑performance engineering plastic material. Used in mechanical, fluid‑handling and electromechanical applications, thePOM‑C material offers an ideal balance of stiffness, smooth sliding (low friction), dimensional stability...

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ten heaviest metals

3 min read

What is the heaviest metal? Guide with rankings and facts

When discussing the heaviest metal in the world, we must first clarify what we mean by “heavy”. In chemistry and materials science, a metal can be considered “heavier” in two main ways:

  • Density – how much mass is contained in a given volume (g/cm³).

  • Atomic mass – the average weight of the atoms...

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Two materials: one isotropic and the other anisotropic

2 min read

Isotropy and anisotropy in materials

The mechanical orientation of materials is a critical factor in the design of components for 3D printing and CNC machining. The distinction between isotropic vs anisotropic behaviour directly affects structural performance, reliability and costs.

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Titanium parts

3 min read

Titanium: what is titanium, properties, alloys and main uses

Titanium is considered one of the most high-performing metals known to humankind. Its reputation derives from the rare combination of two qualities in a single material: strength and lightness. This balance makes titanium indispensable in fields where maximum performance is required without...

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carbon fibre piece and aluminum piece

3 min read

Which is stronger: aluminium or carbon fibre?

In materials science and engineering, particularly in cutting‑edge fields such as aerospace, motorsport, elite sport and high‑end cycling, the question of whether aluminium or carbon fibre offers superior strength arises frequently and has genuine relevance. To provide a comprehensive and...

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Austenitic Steel

3 min read

Comprehensive Guide to Austenitic Steel

Austenitic steel is one of the most important and widespread categories of stainless steels. Renowned for its outstanding corrosion-resistance and favourable mechanical properties, austenitic steel is used in a vast range of industrial and domestic applications.

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Anodising Weerg

4 min read

Hard anodising vs. decorative

Anodising is a widely used surface treatment on metallic materials such as aluminum that uses an electrochemical process to form a protective oxide layer. Although the basic principle is the same, there are two main types of anodising that differ significantly in their characteristics,...

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Bluing and zincing

3 min read

Bluing or zincing? Comparing Features and Applications

In metalworking, including CNC machining, two of the most common finishing treatments are bluing and zincing. Both are used to enhance corrosion resistance and improve the aesthetic appearance of metal components, yet they differ significantly in terms of application process, protection level, and...

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Steel and Aluminium​

3 min read

Steel vs Aluminium: Which Material Is Best for Your Project?

When selecting materials for CNC machining, steel and aluminium emerge as two of the most common options, each with distinctive characteristics that influence design and production decisions. Understanding the differences between these two metals is crucial for optimising performance, costs and...

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CNC Machining for the Aerospace Industry

4 min read

How CNC Machining Supports the Aerospace Industry

The aerospace industry stands as one of the most technologically advanced and complex sectors. Here, precision, reliability, and resilience are not merely essential requirements, but fundamental pillars of production. Any margin of error, however minute, can compromise the performance and safety of...

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