1. What is a CNC Swiss-Type Turning and Milling Machine?

A CNC Swiss-type turning and milling machine is a high-precision CNC machine tool mainly used for machining small-diameter, high-precision parts such as watch components and miniature mechanical parts. Its characteristic is that the workpiece rotates on the main spindle while the cutting tools move linearly to perform machining. This machine can execute multiple processes—including turning, milling, drilling, and tapping—allowing complex parts to be completed in a single setup.
These machines are typically designed with high rigidity and performance, and the CNC system ensures precise positioning for consistent quality. They can also be equipped with guide bushings and long-part collectors to meet the needs of machining elongated components.

2. Introduction to CNC Fixed-Type Lathes

A CNC fixed-type lathe is a CNC lathe primarily used for machining larger-diameter workpieces. Its working principle is that the spindle rotates the workpiece while the cutting tool moves forward, backward, and laterally to perform cutting. This design is suitable for heavy-duty machining and provides high precision and stability.
Fixed-type lathes often adopt turret tool holders and slant-bed structures, enabling quick tool changes and improved machining efficiency. They can also be equipped with servo-driven powered tool systems to further enhance machining capabilities, making them suitable for diverse applications.

3. Advantages of CNC Swiss-Type Machines

1. High-precision machining: Capable of producing small-sized and complex geometries, ideal for medical devices and precision machinery.
2. Stable workpiece support: Guide bushings support the workpiece, reducing vibration and deformation, thereby improving accuracy.
3. Synchronous rotating tools: Tools rotate synchronously with the workpiece, reducing cutting resistance, improving efficiency, and ensuring smooth surfaces.
4. High automation: Features such as automatic feeding, tool changing, and monitoring increase productivity.
5. Suitable for long workpieces: Especially effective for slender parts such as screws, shafts, and gears.

This type of machine is widely used in industries including medical devices, aerospace, automotive, microelectronics, and precision machinery.

4. Why do burrs form after machining?

Burrs are mainly caused by material properties, machining methods, and tool conditions. Common reasons include:

• Material ductility: Softer or highly ductile metals (such as aluminum or copper) tend to form extra layers of metal during cutting, creating burrs.
• Cutting speed and feed rate: Excessive cutting speed or feed rate may tear the material instead of cleanly cutting it, resulting in irregular burrs.
• Tool wear: Dull tools fail to cut cleanly, leaving residual metal that forms burrs.

5. Methods for Removing Burrs

Deburring techniques vary depending on material and part geometry. Common methods include:

• Mechanical deburring
  1. Manual polishing: Using sandpaper, files, or stones; suitable for small batches or special shapes.
  2. Mechanical polishing: Using grinders or tumbling equipment; suitable for batch processing.
  3. Sandblasting: High-pressure air blasts abrasive particles to remove burrs; suitable for metals and plastics.
  4. Milling deburring: Precision tools trim edges, commonly used for CNC parts.
• Chemical and electrolytic deburring
  1. Electrolytic polishing: Removes fine burrs through electrochemical reactions; suitable for stainless steel and aluminum alloys.
  2. Chemical etching: Uses specific solutions to dissolve burrs; suitable for thin parts or micro-components.
• Thermal deburring
  1. Thermal explosive deburring (TEM): Gas combustion creates an instant explosion that vaporizes burrs; suitable for precision parts.
  2. Laser deburring: High-energy lasers remove burrs; ideal for high-precision requirements.
• Special techniques
  1. Ultrasonic deburring: Ultrasonic vibrations remove micro-burrs; suitable for medical and electronic parts.
  2. High-pressure water jet: High-speed water flow removes burrs; suitable for automotive and aerospace industries.

6. Our Outsourcing Services

We provide comprehensive CNC lathe outsourcing services, covering a wide range of metal materials (stainless steel, aluminum, copper, titanium alloys, etc.), and can handle both small-batch and large-scale production orders. Each machining process can be paired with precision deburring treatments to ensure parts meet high-quality standards. Whether for single prototypes or mass production, we deliver professional technical support and reliable lead times.

Contact us to obtain a customized CNC lathe outsourcing solution that meets your precision component machining needs.

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