The Fastest China Rapid Prototype,Small To Large Batch Manufacturer to Bring Your Ideal Project to Life - Be-Cu Discover Our Top Manufacturing Wiki And Guide in 2024 Eamil us : [email protected]

NC Tool Selection Points

The characteristics and requirements of CNC tools (divided into two major systems: turning system and milling and boring system).CNC tools require high precision, good rigidity, convenient clamping and adjustment, strong cutting performance and high durability. Reasonable selection can not only improve processing efficiency but also improve product quality.

Selecting the right tool for Numerical Control (NC) machining is a critical step in ensuring successful and efficient machining processes. The tool selection process should take into account several key points to achieve the desired results. Here are the essential points to consider when selecting NC tools:

The Main Factors That Should Be Considered In Tool Selection

  • The material and performance of the workpiece to be processed: metal, non-metal, and its hardness, stiffness, plasticity, toughness and wear resistance.
  • Processing technology categories; turning, drilling, milling, boring or roughing, semi-finishing, finishing and super-finishing, etc.
  • The geometry of the workpiece, the machining allowance, and the technical and economic indicators of the parts.
  • The cutting amount that the tool can bear.
  • Auxiliary factor: operation interruption time, vibration, power fluctuation or sudden interruption, etc., how much does a CNC lathe cost.

Turning System (Integral Tool System)

  • Composition: It consists of a blade (tool), a tool body, a handle (or handle body), a cutter head, etc.
  • Codes and parameters of indexable inserts
  • The chip breaker geometry of the indexable insert: free chip breaking and smooth chip evacuation
  • Clamping methods of indexable inserts: wedge-up type, lever type, screw-up type Requirements: reliable clamping, accurate positioning, smooth chip removal, simple structure, and easy operation

The Selection Of Indexable Inserts

  • Blade material selection: high speed steel, cemented carbide, coated cemented carbide, ceramics, cubic boron carbide or diamond
  • Blade size selection: effective cutting toughness length, the amount of the knife to be eaten, the main declination angle, etc.
  • Insert shape selection: according to surface shape, cutting method, tool life, number of indexing, etc.
  • The choice of the nose radius of the blade:
  • When roughing, the workpiece diameter is large, the strength of the blade is required to be high, and the rigidity of the machine tool is large, and the large tool nose arc is selected.
  • Finishing, small depth of cut, slender shaft machining, small machine tool stiffness, small tool nose arc

Tool System (Modular Tool System)


blade (tool), tool holder (or handle body), spindle or blade (tool), working head, connecting rod, main handle, and spindle

Selection Of CNC Milling Tools

The choice of milling cutter type:

  • A. Select face milling cutter for processing larger plane,
  • B. Machining bosses, grooves, facet end mills,
  • C. Select the carbide corn milling cutter for machining the rough surface and roughing holes.
  • D. Select ball end milling cutter for surface processing,
  • E. Select the mold milling cutter for the surface of the mold cavity and the punch surface in the processing space,
  • F. Select keyway milling cutter for machining closed keyway, etc.

The selection of milling cutter parameters

A.Main Parameter Selection Of Face Milling Cutter

  • a) The diameter of the standard indexable face milling cutter is Φ16-Φ630): choose a small diameter for rough milling, and choose a large diameter for fine milling.
  • b) Determine its geometric parameters according to the workpiece material, tool material and processing properties: milling cutters with small rake angle are usually selected, materials with high strength and hardness are selected with negative rake angle, and workpiece material hardness is not large.

Small clearance angle, small clearance angle for coarse-tooth milling cutters, and large clearance angle for fine-tooth milling cutters. The edge inclination angle of the milling cutter is usually -5–15 degrees, and the main declination angle is 45-90 degrees.

B. Selection of main parameters of end mills

  • The tool radius r should be less than the minimum curvature radius ρ of the inner contour of the part
  • The processing height of the part
  • No through hole or deep groove selection
  • Select when processing shape and through groove
  • The tool diameter when machining ribs is
  • When roughing the inner contour surface, the maximum diameter of the milling cutter

Selection Of Machining Center Tools

The machining center tool is usually composed of two parts: cutting tool and tool holder. The cutting edge has various milling cutters for surface processing and various drill bits, reaming drills, boring tools, reamers and taps for hole processing. The tool holder should meet the requirements of the machine tool. The spindle is automatically loosened and clamped for positioning, and can accurately install various cutting tools and adapt to the clamping requirements of the tool changing manipulator.The basic requirements for machining center tools

  • A.The tool should have high rigidity
  • B.High repeat positioning accuracy

At,we use advanced equipment to offer you Unparalleled precision for producing metal and plastic machining parts

  • We combine the latest CNC milling and turning processes with proprietary technology to deliver high quality, on-demand parts.
  • Our team of engineers and machinists program the equipment to optimize cutting time, surface finish, and final tolerance to meet your design specifications
  • We specialize in cnc precision machining, single part prototyping, short to medium production runs, manufacture parts on time, every time, so you can stay ahead of schedule
  • CNC machining can create very similar parts to series parts. It is often more efficient and faster than other rapid prototyping technologies for the manufacture of a quantity of prototypes between 1 and 10 parts . We also recommend CNC machining for parts with large sizes (greater than 600 mm).

Contact Us ([email protected]) Now for your Custom CNC Machining, We are your best online cnc machining and rapid prototyping services choice!