Vansim (Dongguan)Hardware Products Co., Ltd.
What is the key piont to skiving an aluminum skived heat sink with waviness fins?
1. Tool Design and Geometry
Critical Considerations
- Custom Tool Profile:
- The skiving tool (e.g., a rotary or linear blade) must match the wave amplitude, wavelength, and angle of the fins. For example, a sinusoidal wave may require a tool with a curved cutting edge, while triangular waves need a sharp, angled profile.
- Tool material: Use ultra-hard materials like tungsten carbide or diamond coatings to withstand the high stresses of cutting wavy profiles without deforming or wearing quickly.
- Clearance Angles:
- Ensure the tool has adequate relief angles (e.g., back rake angle, side clearance) to prevent friction with the newly formed wave surfaces, which could cause burring or distortion.
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The success of skiving wavy fins on aluminum heat sinks hinges on precision tooling, careful material handling, and strategic machining parameters that balance cutting efficiency with geometric fidelity. By prioritizing tool design, stability, and thermal control, manufacturers can produce wavy fins with consistent, high-performance geometries ideal for enhancing heat dissipation via improved airflow turbulence.
waviness fins aluminum skived heat sink
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