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

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CNC machining

Weerg iso 14001:2015

3 min read

ISO 14001:2015: Our Commitment to More Responsible Manufacturing

How Environmental Management System certification strengthens the quality of our production processes and the value we deliver to our partners

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Brinell Test diagram

3 min read

Brinell Test: What It Is, How It Works and When to Use It (2026 Guide)

The Brinell test is one of the oldest and most reliable methods for measuring the hardness of materials, particularly metals.Even today it is widely used in metallurgy, quality control, industrial production and research, especially when analysing heterogeneous or coarse-grained materials.

In this...

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Reverse engineering

2 min read

Reverse Engineering: How to Reconstruct and Improve a Product

Reverse engineering is an increasingly widespread practice in modern industry, mechanical design and digital manufacturing.It allows the digital model of a physical object to be reconstructed, even when drawings, CAD files or technical documentation no longer exist.

Thanks to the evolution of 3D...

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Young's modulus graph

2 min read

Young’s Modulus: What It Is, How It’s Calculated and Why It Matters

Young’s modulus, also known as the longitudinal modulus of elasticity, is one of the most important mechanical properties of materials. It is used daily in engineering, mechanical design and 3D printing to evaluate a material’s stiffness.

Understanding Young’s modulus means being able to predict...

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One galvanised steel and one non-galvanised steel

3 min read

Galvanisation: Types of Zinc Coating, Benefits and Differences

Galvanisation is one of the most effective and widely used surface treatments for protecting steel and other metals from corrosion, oxidation and wear.Used for over 150 years in construction, mechanical engineering and the automotive industry, it is now an essential industrial standard for...

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304 and 316 stainless steel parts

2 min read

Stainless Steel 304 and 316: Comparison Between the Two Grades of Stainless Steel

Stainless steel is one of the most widely used materials in modern industry thanks to its corrosion resistance, durability, and versatility.Among the most common alloys are two main types: stainless steel 304 and stainless steel 316.At first glance, they may appear similar, but they differ in ...

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humanoid robot Oversonic Robotics

2 min read

Weerg and Oversonic Robotics: CNC precision shaping the robotics

Italian excellence shaping the future

In the field of advanced robotics, Italy stands out for its ability to combine research, innovation and manufacturing expertise.Among these leading companies, Oversonic Robotics is one of the most visionary, specialising in the design and development of ...

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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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