Materials used in machining

Materials that commonly undergo machining processes include metals such as steel, aluminum, copper, brass, and special alloys, each with mechanical and thermal properties that influence process and tool selection. For example, stainless steels require stronger tools and proper cutting speeds to prevent premature wear.

Technical plastics, ceramics and composite materials are also machined, which present specific challenges due to their hardness, brittleness or abrasive nature. These materials demand specialized techniques and tools to avoid damage and ensure quality.

In-depth knowledge of material properties, such as hardness, toughness, thermal conductivity and structure, is essential to plan efficient machining and avoid defects, such as deformations, cracks or poor finishes.

Most common types of machining

Turning is a process in which the part rotates while a cutting tool moves to give external or internal shape, widely used to manufacture shafts, cylinders and threads. It is one of the oldest and most versatile methods of machining.

Milling consists of the rotary movement of a multi-edged tool that cuts the fixed or moving workpiece, suitable for flat surfaces, grooves and complex profiles. It is used to create components with varied and precise geometries.

Drilling produces holes using a rotating tool called a drill bit, essential for assemblies and fastenings. Complementary processes include countersinking and threading to prepare and optimize connections.

Grinding is a finishing process that uses a grinding wheel to obtain very smooth and precise surfaces, correcting imperfections and achieving tight tolerances. It is crucial in parts that require high surface and dimensional quality.

Materials used in machining

Materials that commonly undergo machining processes include metals such as steel, aluminum, copper, brass, and special alloys, each with mechanical and thermal properties that influence process and tool selection. For example, stainless steels require stronger tools and proper cutting speeds to prevent premature wear.

Technical plastics, ceramics and composite materials are also machined, which present specific challenges due to their hardness, brittleness or abrasive nature. These materials demand specialized techniques and tools to avoid damage and ensure quality.

In-depth knowledge of material properties, such as hardness, toughness, thermal conductivity and structure, is essential to plan efficient machining and avoid defects, such as deformations, cracks or poor finishes.