Why "High-Frequency Performance" of Induction Coils Is a Technical Pain Point?

High-frequency induction coils are the "energy converters" in RF heating, precision welding, and medical RF equipment, with their performance directly determining system efficiency. In 100kHz-10MHz high-frequency scenarios, traditional pure copper induction coils face insurmountable limitations:

● Insufficient Geometric Precision：Hand-wound or mechanically bent coils often have wire spacing errors exceeding 0.1mm, causing uneven high-frequency current distribution, increasing eddy current loss by over 30%, and drastically reducing heating efficiency.

● Low Q Factor：Welded joints and wire surface roughness (Ra＞3.2μm) introduce additional resistance, reducing the quality factor (Q value) by 15-20%, failing to meet strict energy focusing requirements in medical RF and similar fields.

● Heat Dissipation vs. Power Conflict：Coils generate intense self-heating at high frequencies; traditional solid structures have poor heat dissipation, forcing input power reduction and limiting equipment output capacity.

3D printed pure copper high-frequency induction coils with "precision structure + low-loss characteristics" are the optimal solution for high-frequency scenarios.

How Does 3D Printing Reshape Core Performance of High-Frequency Induction Coils?

Targeting special needs of high-frequency scenarios, 3D printed pure copper high-frequency induction coils achieve three key breakthroughs:

1.Sub-Millimeter Precision Winding Design

Based on SLM technology, layer by layer molding can achieve precise control of wire diameter 0.3-2mm and spacing 0.05mm, with coil turn error ≤ 1%.

This consistency improves the uniformity of high-frequency current distribution by 40% and reduces eddy current losses to 60% of traditional coils at 1MHz.

2.Low-Loss Integrated Structure

The coil is printed integrally without welding, with wire surface roughness Ra≤1.6μm, reducing high-frequency resistance by 25%. Equipped with built-in micro-channels (0.5mm diameter), operating temperature is 20℃ lower than traditional coils at 2kW input power, with Q value increased to 120 (traditional coils usually ＜100).

3.Special-Shaped Adaptation and Energy Focusing

Custom non-circular coils (e.g., saddle-shaped, multi-segment arc) can perfectly fit irregular workpieces (such as circumferential surfaces in pipe welding), improving energy focusing efficiency by 35%. In semiconductor wafer welding, the heat-affected zone (HAZ) can be controlled within 0.1mm.

Xiaojiao's 3D Printed High-Frequency Induction Coil Solutions

Xiaojiao specializes in coil customization for high-frequency scenarios, with core technical capabilities ensuring performance delivery:

● Patented Green Laser Molding：515-560nm laser achieves 45% absorption on pure copper, ensuring 0.3mm thin wires are deformation-free with 99.96% density, maintaining 98% IACS conductivity to lay the foundation for low loss.

● High-Frequency Simulation Optimization：Via HFSS electromagnetic simulation, optimize coil turns, spacing, and shape to predict Q value and loss rate during design, ensuring first samples meet high-frequency indicators (e.g., Q≥110 at 10MHz).

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