Types and Composition of Mill Machine Bits

RNK's mill machine bits are commonly used tools in machining, primarily for processing metal workpieces on milling machines, capable of creating various shapes of holes and slots.

Types and Materials of Mill Machine Bits

Mill machine bits can be divided into various types according to material and use, mainly including:

• Cemented carbide milling cutters: They have high wear resistance and durability, excellent cutting performance, but are relatively expensive.

  
  

• High-speed steel milling cutters: Also one of the commonly used milling cutters, suitable for various machining needs.

  
  

• PCD and CBN milling cutters: Target specific materials and application scenarios, with unique cutting performance.

Structure and Components of Mill Machine Bits

Mill machine bits mainly consist of the following parts:

Shank

Usually cylindrical or straight shank, convenient for installation on the milling machine.

Cutting teeth

The main part of the drill bit, composed of multiple sharp cutting edges responsible for cutting metal materials.

Load surface

Used to support the workpiece, ensuring the stability of the cutting process.

Core rod

Fixes the position of the cutting teeth, guaranteeing cutting precision and depth.

Specifications and Uses of Mill Machine Bits

Mill machine bits come in various specifications to meet different machining needs. Common specifications include straight shank drill bits, threaded shank drill bits, center drills, collet milling cutters, and deep hole drill bits, each with different applicable ranges and advantages and disadvantages:

Straight shank drill bits

Wide diameter range, suitable for milling, drilling, reaming, and other machining operations.

Threaded shank drill bits

Such as MK, BT, CAT, HSK models, suitable for high-speed milling and machining centers.

Center drills

Smaller diameter, mainly for drilling or cutting operations in the center of the workpiece.

Collet milling cutters

Medium diameter range, suitable for milling and machining different materials.

Deep hole drill bits

Longer length, used for deep hole, blind hole, and drilling operations.

Usage Methods and Precautions for Mill Machine Bits

When using mill machine bits, pay attention to the following points:

Check drill bit quality

Ensure the drill bit is not damaged or deformed.

Adjust machining parameters

Based on the type and size of the machining material, adjust the milling machine's speed, feed rate, and cutting depth parameters.

Fix the workpiece

Secure the metal workpiece to be machined firmly on the milling machine's worktable.

Safe operation

Wear work clothes, safety shoes, and other personal protective equipment to ensure personal safety. During the machining process, always pay attention to the drill bit's machining condition to avoid accidents.

Drill bit maintenance

After machining, promptly clean the milling machine and worktable and check the drill bit's wear level. If damaged or overly worn, replace it promptly.