Custom 5-Axis CNC Machined Parts from China

Custom 5-Axis CNC Machined Parts from China

Core Principles for CNC Material Selection

Prioritize Machinability

Machinability directly determines processing efficiency, tool wear, and machining precision.

Moderate hardness is essential: Excessive hardness (e.g., unannealed high-carbon steel, cemented carbide) accelerates tool wear and complicates machining; insufficient hardness (e.g., pure aluminum) leads to issues like built-up edge (sticking) and burrs, compromising surface quality.

Consider cutting characteristics: Factors such as cutting force, cutting temperature, and chip-breaking performance are crucial. Materials with good chip-breaking properties (e.g., free-cutting steel) minimize chip entanglement during machining.

Match Material to Application

Structural parts: Require strength and rigidity; prioritize steel or aluminum alloys.

Transmission parts: Require wear and fatigue resistance; consider alloy steel or stainless steel.

Corrosion-resistant applications: Select stainless steel, aluminum alloys, or titanium alloys.

Lightweighting requirements: Select aluminum, magnesium, or titanium alloys.

Low-cost general-purpose parts: Select standard carbon steel or cast iron.

Consider Post-Processing Compatibility

If the product requires subsequent welding, plating, coating, or heat treatment, material compatibility must be considered.

Examples: Aluminum alloys are suitable for anodizing, stainless steel can be plated, and carbon steel is ideal for quenching.

Control Costs and Supply Stability

Prioritize standard material grades that are widely available and easy to source; non-standard or specialized materials increase procurement costs and delivery risks.