Square End Mill – DLC/U Coated Series For Alu & Copper

Flat End Mill – DLC/U Coated Series For Alu. & Copper

Core Positioning & Design Concept

This DLC-U Flute Flat-End Mill is a professional tool specifically designed for efficient, high-quality milling of aluminum, copper, and other soft, sticky non-ferrous metals. All designs revolve around one core goal: achieving extreme chip evacuation and preventing material adhesion under ultra-high cutting parameters, ultimately ensuring excellent machining surfaces and extended tool life.

Core Features & Functions

• U Flute (Large Chip Pocket Design)

  Its core feature is a wide, smooth U-shaped chip pocket, which solves the chip clogging problem during high-speed aluminum machining. It avoids tool breakage, surface scratches, and tool overheating caused by chip clogging, laying the foundation for aggressive cutting with high speed, high feed rate, and large depth of cut.

• DLC (Diamond-Like Carbon Coating)

  The tool surface is coated with a diamond-like carbon film, designed for the high stickiness of aluminum. Its extremely low friction coefficient prevents aluminum chip adhesion; high hardness enhances wear resistance; and good thermal conductivity aids heat dissipation, fundamentally solving dimensional inaccuracies and surface roughness caused by “built-up edge”.

• Flat-End Mill Structure

  It has all the functions of a standard flat-end mill. It can precisely machine vertical side walls (ensuring 90° corner cleaning), mill smooth large surfaces, and is also suitable for roughing grooves thanks to its strong chip evacuation capability.

• For Aluminum & Copper (Material & Edge Optimization)

  It uses a high-quality cemented carbide body, paired with edge design optimized for aluminum machining. The precision-ground edge with an extra-large rake angle (as sharp as a “razor”) reduces cutting resistance and heat; a large helix angle (45° or more) ensures stable cutting, provides an upward force to assist chip evacuation, and “flings” chips out of the workpiece.

Typical Application Scenarios

• Precision Mold Manufacturing

  Machining mold cores and cavities of aluminum molds (such as plastic molds, die-casting molds), especially for optical component molds requiring high surface finish.

• Aerospace Industry

  Efficient machining of aluminum alloy structural parts and frames.

• Consumer Electronics Industry

  Machining cavities and surfaces of aluminum parts such as smartphone middle frames and laptop casings.

• Precision Parts Machining

  Machining aluminum heat sinks, copper electrodes, and other high-precision parts requiring good surface quality.

Precautions

• Specialized Tool

  This tool is exclusively designed for soft materials like aluminum and copper. It is strictly forbidden to machine hard materials such as steel, iron, and stainless steel, as the sharp edge will shatter instantly.

• Machine Requirements

  To maximize its high-speed cutting performance, it is recommended to use it on high-speed, high-feed CNC machining centers. Old or low-rigidity machines may not achieve its ideal performance.

Common Product Data