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Introduction to CNC Process Details

01 CNC Machining Center

Processing Principle: Multi-axis synchronized tool cutting with computer numerical control.
Typical Applications: Complex structural components, high-precision parts.
Core Advantages: Multifunctionality, high precision, flexibility.

02 Die Casting Machine

Processing Principle: Forming through die-based pressure application.
Typical Applications: Sheet metal parts, mass-produced standard components.
Core Advantages: High efficiency, low cost, dimensional consistency.

03 Industrial Robot Arm

Processing Principle: Trajectory-controlled manipulation via robotic arm and end-effectors.
Typical Applications: Complex assembly tasks, parts processed in hazardous environments.
Core Advantages: Flexibility, repeatability, safety.

04 Wire EDM Machine

Processing Principle: Material removal through electrical discharge erosion.
Typical Applications: High-hardness materials, components with intricate contours.
Core Advantages: No cutting forces, ultra-precision, suitable for hard materials.

05 Polishing Machine

Processing Principle: High-speed rotation of motor-driven polishing wheels/disks to remove surface imperfections (burrs, scratches, oxidation) and create a glossy finish.
Typical Applications: Optical components, precision molds, bathroom hardware, consumer electronics, aerospace blades, automotive parts.
Core Advantages: Superior surface quality, wide adaptability, balanced efficiency-cost ratio, enhanced functionality.

Aerospace Industry

Application Scope:
CNC milling is critical for manufacturing high-precision aerospace components such as engine blades, impellers, and wing structures. It ensures tight dimensional tolerances, surface finish requirements, and geometric precision necessary for components operating under extreme conditions (e.g., high temperature, pressure, and velocity). This technology guarantees reliability and performance in aerospace systems.

Automotive Manufacturing

Application Scope:
Engine Components: Processes critical parts like engine blocks, cylinder heads, and crankshafts, ensuring precise bore diameters, flatness, oil/water channel systems, surface roughness, journal cylindricity, and dynamic balance.
Body Tooling: Produces body panel molds with complex curved surfaces and high-precision dimensions, enhancing forming accuracy and surface quality of automotive exteriors.
Chassis Systems: Machines suspension arms, steering knuckles, and other chassis components to meet strict dimensional and geometric tolerances, improving vehicle handling stability and safety.

General Machinery

Application Scope:
In general machinery manufacturing, CNC milling processes various components such as shafts, gears, and housings. It enables complex geometries and high-precision dimensional control, enhancing interchangeability and assembly accuracy of mechanical parts. Widely used in the production and maintenance of industrial equipment across sectors.

Technical Parameters & Equipment Display

CNC Machining Centers
Stamping Presses
Industrial Robots Arms
Wire EDM Machine
Polishing Machines

CNC Machining Centers

Technical Specifications
Spindle Speed: Typically 5,000–20,000 rpm (high-speed machining centers can exceed 40,000 rpm).
Feed Rate: Linear axes (X/Y/Z axes) have rapid traverse speeds of 10–60 m/min and cutting feed rates of 1–20 m/min.
Travel Range: Small machines (e.g., benchtop models) have X/Y/Z travel of approximately 300×300×300 mm, while large gantry-type machines can reach 5,000×2000×1000 mm or more.
Tool Magazine Capacity: Standard configuration: 16–32 tools (disc-type magazine); large machines can optionally have 60+ tools (chain-type magazine).
Drive Method: Servo motors + ball screws (high precision) or linear motors (high speed, high dynamic response).
Machining Accuracy
Positioning Accuracy: ±0.005–±0.02 mm (ISO standard); high-precision machines can reach ±0.002 mm.
Repeat Positioning Accuracy: ±0.003–±0.01 mm; precision-grade machines can reach ±0.001 mm.
Surface Roughness: Milling aluminum alloys achieves Ra 0.8–3.2 μm; finish milling steel parts achieves Ra 0.4–1.6 μm.
Typical Applications
Part Types: Complex structural components (e.g., aerospace frames, automotive transmission housings), precision molds (injection mold cores/cavities), 3C product aluminum alloy casings.
Advantages: Completes multi-process machining (milling, drilling, boring, tapping) in one clamping, suitable for high-precision and multi-curved surface parts.
Stamping Presses

Technical Specifications
Nominal Pressure: Small stamping presses: 10–100 tons; large presses (e.g., for automotive panel stamping): 2,000–5,000 tons or more.
Stroke Frequency: Common presses: 10–60 strokes/min; high-speed presses (e.g., for electronic components): 300–1,000 strokes/min.
Worktable Size: Small machines: ~600×400 mm; large machines: up to 3,000×2,000 mm.
Slide Stroke: 50–300 mm (adjustable according to mold height).
Machining Accuracy
Dimensional Accuracy: Common stamped parts: tolerance ±0.1–±0.5 mm; precision stamping (e.g., progressive dies): ±0.01–±0.05 mm.
Surface Roughness: Sheared surface: Ra 12.5–25 μm; formed surface (polished by molds): Ra 1.6–3.2 μm.
Material Thickness Range: Sheet stamping: 0.1–3 mm (e.g., electronic components); thick-plate stamping: 3–20 mm (e.g., automotive structural parts).
Typical Applications
Part Types: Metal sheet parts (e.g., automotive body panels, motor cores, tableware), precision electronic components (e.g., connectors, shield covers).
Advantages: Extremely high efficiency in mass production, low single-process cost, suitable for regular-shaped parts or those formable via molds.
Industrial Robots Arms

Technical Specifications
Load Capacity: Small robots: 0.5–20 kg (e.g., assembly, welding); large robots: 100–500 kg (e.g., handling, palletizing).
Working Range: Arm span: 300–3,000 mm; 6-axis robots enable 360° full-degree-of-freedom movement.
Repeat Positioning Accuracy: ±0.01–±0.2 mm (precision assembly robots can reach ±0.005 mm).
Motion Speed: Maximum linear speed: 1–5 m/s; joint angular speed: 100–300°/s.
Machining Accuracy (depending on end-effectors)
Welding/Coating: Path accuracy: ±0.5–±2 mm (e.g., automotive body welding).
Assembly/Handling: Positioning accuracy: ±0.1–±1 mm (e.g., 3C product part assembly).
Machining (e.g., robot milling): Accuracy: ±0.2–±1 mm (suitable for large-size, low-precision parts like foam molds).
Typical Applications
Part Types: Parts requiring flexible processing with complex paths (e.g., curved welding parts, irregular handling parts), small-batch multi-variety workpieces.
Advantages: High flexibility, programmable for different processes (welding, handling, grinding, assembly), suitable for automated production lines.
Wire EDM Machine

Technical Specifications
Cutting Range: Worktable travel: 300×400 mm (small) to 2,000×3,000 mm (large).
Electrode Wire Diameter: Fast wire cutting: 0.18–0.25 mm; slow wire cutting: 0.03–0.3 mm (commonly 0.1–0.2 mm).
Cutting Speed: Fast wire cutting: 50–200 mm²/min; slow wire cutting: 20–100 mm²/min (lower speed for higher precision).
Working Fluid: Emulsion for fast wire cutting; deionized water or kerosene for slow wire cutting.
Machining Accuracy
Dimensional Accuracy: Fast wire cutting: ±0.01–±0.02 mm; slow wire cutting: ±0.001–±0.005 mm (precision grade: ±0.001 mm).
Surface Roughness: Fast wire cutting: Ra 2.5–5 μm; slow wire cutting: Ra 0.2–1.6 μm (multiple cuts can reach Ra 0.1 μm).
Minimum Slit Width: Dependent on electrode wire diameter; slow wire cutting can machine 0.03 mm narrow slits (e.g., MEMS parts).
Typical Applications
Part Types: Precision parts from conductive materials (e.g., cemented carbide molds, gears/cams, irregular holes), quenched steel parts (no pre-annealing needed).
Advantages: Non-contact machining, no cutting force, suitable for high-hardness and complex-contour parts, especially for mold repair and small-batch customization.
Polishing Machines

Technical Specifications (mechanical polishing example)
Polishing Wheel Speed: 1,000–6,000 rpm (lower for cloth wheels, higher for grinding wheels).
Polishing Pressure: Manual polishing: 5–50 N; automatic polishing machines control pressure via air cylinders or servo motors: 10–200 N.
Applicable Part Size: Small bench-top polishers handle ≤200 mm parts; large horizontal polishers can process ≥1,000 mm workpieces.
Machining Accuracy
Surface Roughness:
Mechanical polishing: Ra 0.8–0.2 μm (rough polishing) to Ra 0.2–0.025 μm (finish polishing).
Electrolytic/chemical polishing: Ra 0.2–0.05 μm, achievable mirror finish.
Shape Accuracy: Dependent on polishing method; manual polishing may affect edge profiles, while automated polishing (e.g., CNC trajectory control) maintains ±0.05–±0.1 mm accuracy.
Typical Applications
Part Types: Parts requiring high surface precision (e.g., optical lenses, medical devices), decorative parts (e.g., bathroom hardware, jewelry), mold cavities.
Advantages: Improves surface finish and corrosion resistance, suitable for post-processing, can be integrated with CNC and wire cutting processes.