Circular milling cutter tool

Circular milling cutter (also known as center milling cutter, centering milling cutter) is a type of milling tool with the tool center as the cutting edge core, mainly used for workpiece center positioning, countersunk machining, end face leveling, and small groove machining. It is widely used in CNC milling machines, machining centers, and other equipment.

Circular milling cutter (also known as center milling cutter, centering milling cutter) is a type of milling tool with the tool center as the cutting edge core, mainly used for workpiece center positioning, countersunk machining, end face leveling, and small groove machining. It is widely used in CNC milling machines, machining centers, and other equipment.

　　1、 Core structural characteristics

1. Cutting edge design: The cutting edge is mostly distributed on the end face and center area of the tool, and some models have peripheral edges. The cutting edge is sharpened (such as chamfering and polishing) to ensure smooth cutting;

2. Tool holder form: common straight handle, Mohs taper handle, BT/HSK CNC tool holder, etc., suitable for different machine tool clamping needs;

3. Material selection: High speed steel (HSS), hard alloy (WC Co), and coated hard alloy (TiN, TiAlN coating) are the main materials, and the coating material can improve wear resistance and cutting speed.

　　2、 Main purpose

-Workpiece center positioning: milling positioning pits on the surface of the workpiece before processing to provide precise starting positions for cutting tools such as drill bits and end mills, avoiding deviation;

-Countersunk hole processing: milling bolts and screws with countersunk seats to make the fastener head flush with the workpiece surface;

-End face flatness: precision milling of small workpiece end faces to ensure flatness and surface roughness;

-Small groove/step processing: For narrow grooves and shallow steps, use the center cutting ability to complete the forming process.

　　3、 Performance advantages and usage precautions

1. Advantages: High centering accuracy (up to 0.01~0.03mm), low cutting resistance, good surface processing quality, suitable for pre-processing or precision machining of high-precision parts;

2. Attention: During cutting, it is necessary to control the feed rate and cutting speed to avoid overloading and damage to the center edge; Select the matching tool material and coating based on the workpiece material (steel, aluminum, cast iron, etc.).