Es gibt zahlreiche Methoden zur Bearbeitung der inneren Löcher und Oberflächen von CNC -Drehsteilen, einschließlich Bohren, Reihenfolge, langweilig, drehen, Schleifen, broaching, lapping, honing, and rolling.
Applicable Methods for Machining Internal Holes of CNC Lathe Parts
Enlarging (Semi-finishing)
Enlarging is the process of further processing an already drilled hole using an enlarging drill to increase the diameter, improve accuracy, and reduce surface roughness.
- Toleranz: IT11 to IT10
- Oberflächenrauheit: Ra12.5 to 6.3μm
It is considered a semi-finishing method for holes and is often used as a pre-processing step before reaming. It can also be used as a final finish for holes with low precision.
1. Bohren
Drilling a hole in a solid part of a workpiece with a drill is called roughing.
- Toleranz: IT13 to IT11
- Oberflächenrauheit: Ra50 to 12.5μm
This is because twist drills are long, have small core diameters, and lack rigidity, and are also affected by the chisel edge.
2. Reiben
Reaming is a finishing method for holes following semi-finishing (enlarging or semi-finishing boring).
- Toleranz: IT9 to IT6
- Oberflächenrauheit: Ra3.2 to 0.8μm (special cases up to Ra0.4–0.2μm)
There are two methods for reaming:
- Machine reaming: performed on a machine tool
- Manual reaming: performed manually
3. Hole Turning
Hole turning on a lathe involves rotating the workpiece while the tool moves.
- The hole size can be controlled by the tool’s depth of cut and number of passes.
- Mainly used for producing holes in components such as discs and small brackets.
4. Langweilig
Boring involves further processing a drilled, cast, or forged hole using a boring tool. This can be performed on a lathe, boring machine, or milling machine.
Types of boring:
- Rough boring: Tolerance IT13–IT12, Ra12.5–6.3μm
- Semi-finishing boring: Tolerance IT10–IT9, Ra6.3–3.2μm
- Finishing boring: Tolerance IT8–IT7, Ra1.6–0.8μm
Über RapidEfficient
Schnell ist spezialisiert auf hochpräzise CNC-Bearbeitung mit 18 jahrelange Erfahrung.
Its products cover:
- Medizinisch
- Communications
- Optics
- Drones
- Intelligent robots
- Automobil
- Office automation parts
The company’s CNC machining centers include vierachsig, five-axis and linkage machine tools, und sind ausgestattet mit Präzisionsprojektoren, Drei-Koordinaten-Messmaschinen, spectrometers and other precision testing equipment.
- Bearbeitungsgenauigkeit: 0.01mm
- Prüfgenauigkeit: 0.001mm
