FR-4
CNC Machining Service

Common CNC machining processes for FR-4 include milling, drilling, and routing. These processes create precise and intricate shapes required for electronic components and other applications. Specialized carbide or diamond-coated tools are often employed to effectively handle the material’s hardness and abrasiveness.

Key considerations for CNC machining FR-4 include tool selection, cooling, and dust management. Using carbide or diamond-coated tools helps manage the material’s abrasiveness. Adequate cooling is essential to prevent thermal damage, and proper dust extraction systems are necessary to manage the fine dust generated during machining.

Typical tolerances achievable when CNC machining FR-4 are up to ±0.05mm. Achieving precise tolerances requires sharp tools, controlled machining parameters, and careful handling to account for the material’s rigidity and potential for slight thermal expansion during machining.

Minimizing CNC machining defects in FR-4 involves using sharp, high-quality tools and maintaining optimal cutting speeds and feeds. Proper cooling and lubrication help prevent thermal damage and tool wear. A clean work environment and effective dust extraction systems can prevent contamination and improve the quality of the machined parts.

CNC machined FR-4 parts are commonly used in applications such as printed circuit boards (PCBs), electrical insulators, and aerospace components. The material’s excellent electrical insulation, mechanical strength, and flame resistance make it suitable for high-performance and safety-critical applications.