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Case Study | Custom PCD Multi-Tooth Milling Cutter Solutions for Advanced Manufacturing – Aoshiji® Custom Tool

Over 13 years of industry practice have ensured product stability and trusted reliability.

Solutions for Automotive, 3C Electronics, and Aerospace Machining

PCD Multi-Tooth Milling Cutter

Compared with conventional PCD milling cutters, the PCD multi-tooth milling cutter from Aoshiji® Custom Tool offers significant advantages:

Ultra-long tool life – extended durability even in high-volume production

High precision – ensures dimensional accuracy for demanding applications

Low friction & superior surface finish – optimized cutting edges deliver smoother machining and reduced wear

Customizable design – tailored to specific materials, components, and machining requirements

This makes the PCD multi-tooth milling cutter an ideal solution for automotive, 3C electronics, and aerospace machining, where productivity, consistency, and cost efficiency are critical.

Close-up view of a custom PCD multi-tooth milling cutter showing cutting edges and tool geometry by Aoshiji® Custom Tool.
01 PCD Multi-Tooth Milling Cutter

PCD (Polycrystalline Diamond) Multi-Tooth Milling Cutter The PCD multi-tooth milling cutter is a high-precision, wear-resistant tool designed for high-speed machining. It is widely used in aerospace, automotive manufacturing, electronics production, and mold making. This tool is especially effective for high-efficiency machining of aluminum alloys, carbon-fiber reinforced plastics (CFRP), copper, stainless steel, and other non-ferrous and non-metallic materials.

02 Optimized Structural Design
Technical drawing of custom PCD multi-tooth milling cutter by Aoshiji® Custom Tool illustrating tool geometry and tooth layout.

PCD Multi-Tooth Milling Cutter – Technical Overview

  • PCD Material:
    PCD (Polycrystalline Diamond) is manufactured by sintering diamond micro-particles under high temperature and pressure. It offers exceptional hardness and outstanding wear resistance, making it ideal for demanding machining environments.

  • Multi-Tooth Design (typically 6–30 teeth):
    The multi-tooth configuration allows for higher feed rates while reducing the cutting load on each individual tooth. This design improves machining efficiency, accuracy, and surface finish, while also significantly extending tool life.

  • Tool Interfaces:
    Common interfaces include BT, HSK, ISO, and CAT, selected according to machine tool requirements to ensure optimal compatibility and stability.

  • Tool Body Material:
    The cutter body is generally made of tungsten carbide (carbide) or tool steel, with PCD inserts either brazed or embedded at the cutting edges to deliver high performance.

  • Application Scenarios:
    Ideal for precision milling, drilling, chamfering, and boring, the PCD multi-tooth milling cutter is widely applied in aerospace, automotive manufacturing, electronic components, and mold making industries.

03 Machining Materials

PCD Multi-Tooth Milling Cutter – Suitable Machining Materials

The PCD multi-tooth milling cutter is especially effective for machining difficult-to-cut non-ferrous metals and non-metallic materials, such as:

  • Aluminum alloys – e.g., engine cylinder heads, transmission housings, and aerospace structural components

  • Carbon-fiber reinforced plastics (CFRP) – e.g., aircraft parts and wind turbine blades

  • Copper and brass – e.g., electronic components and precision connectors

  • Plastics and resin materials – e.g., 3C products and medical devices

  • Ceramic matrix composites (CMC) – e.g., aerospace applications and heat-resistant components

With its versatility in handling these advanced materials, the PCD multi-tooth milling cutter ensures high precision, superior surface finish, and extended tool life across aerospace, automotive, electronics, medical, and energy industries.

04 Advantages of PCD Multi-Tooth Milling Cutters

Key Advantages of PCD Multi-Tooth Milling Cutters

  • Ultra-long tool life – lasts 10 to 50 times longer than conventional carbide milling cutters, reducing tool change frequency and overall cost.

  • Ultra-high precision – enables micron-level (μm) accuracy for demanding applications.

  • Low friction & superior surface finish – minimizes cutting heat, reduces surface roughness, and allows for mirror-like machining quality.

  • High cutting efficiency – suitable for high-speed cutting (HSC) and high-precision machining, significantly improving productivity.

  • Customizable design – tooth profile, number of teeth, and cutting angles can be tailored to meet specific machining requirements.

05 Typical Application Cases

■ Aerospace

  • Application: Machining aircraft structural components with high-speed milling.

  • Advantages: Improves machining efficiency, reduces tool change frequency, minimizes burrs and edge chipping.

  • Tool Benefits:

    1. Multi-tooth design reduces individual tooth load and enhances surface quality.

    2. PCD material lowers friction, reduces cutting heat, and significantly extends tool life.


■ 3C Electronics & Precision Manufacturing

  • Application: Precision machining of smartphone metal frames, heat sinks, and other electronic components.

  • Advantages: Ensures dimensional accuracy, reduces secondary operations, and achieves surface roughness of Ra 0.1–0.2 µm.

  • Tool Benefits:

    1. Multi-tooth design combined with PCD material ensures mirror-like surface finish.

    2. Lower cutting resistance reduces heat deformation and improves machining stability.


■ Automotive Manufacturing

  • Application: High-speed machining of aluminum components such as engine cylinder heads and transmission housings.

  • Advantages: Delivers more than 10× longer tool life compared to conventional carbide milling cutters.

  • Tool Benefits:

    1. Enables high-speed cutting without built-up edge or chip adhesion.

    2. Multi-tooth configuration reduces vibration and improves dimensional accuracy.

Custom PCD multi-tooth milling cutter designed for high-efficiency machining by Aoshiji® Custom Tool.

For more insights into advanced machining, explore our PCD Multi-Tooth Milling Cutters designed for high-efficiency aluminum, CFRP, and copper machining, as well as our Custom PCD Reamers for precision hole finishing.

To stay informed with the latest industry perspectives, see reports such as Global Cutting Tool Market Trends 2025 and CTE’s insights into CNC machining technology.

Choose Aoshiji® Custom Tool — ensuring tool compatibility, delivering extended tool life, and unlocking a new level of high-performance machining with our integrated PCD solutions.

Read our previous case study: High-Efficiency Machining with Special-Purpose Cutting Tools: From Challenge to Breakthrough

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