チューブのレーザー切断では、チューブを チューブレーザー切断機、チューブを自動的にセンタリングし、切断条件を設定したうえで、集光されたレーザービームを用いてプログラムされた軌跡に沿って高精度に切断します。
このプロセスは、CNC制御、回転動作、レーザー技術を組み合わせることで、金属チューブおよびパイプに対して高精度かつバリのない切断を実現します。
レーザー管切断とは何ですか？
レーザー管切断とは、集光されたレーザービームを使用して金属製の管やパイプを切断、スロット加工、穴あけ、または成形する加工プロセスです。平板切断とは異なり、レーザー管切断には以下が必要です：
- 高精度なチューブのクランプおよび回転
- チューブの変形を補正する自動センタリング
- 直線軸と回転軸の高精度な同期制御
チューブレーザー切断機は、丸管、角管、矩形管、および特殊形状プロファイルを、高い再現性と最小限の材料ロスで加工できます。
1. チューブをレーザー切断する前の準備
Proper preparation is critical for safety, accuracy, and cutting quality.
Check the Work Area
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Ensure the working area is clean and free of obstacles
- Confirm all safety guards and protective covers are in place
Inspect the Machine
- Check the laser source, chiller water temperature, and gas pressure
- Inspect the cutting nozzle and focusing lens for contamination or damage
- Confirm all electrical and pneumatic connections are normal
Prepare Materials and Tools
- Verify tube material, diameter, thickness, and length
- Prepare drawings or cutting programs in advance
2. Power-On and Machine Startup
Correct startup order protects the machine and ensures stable operation.
Standard Startup Sequence
- Main power switch
- Voltage stabilizer
- Emergency stop reset
- CNC control system
- Servo system
- Water chiller
- Laser source
Once the control system finishes initialization, perform a homing operation to reset all axes to their reference positions
3. Drawing and Programming for Tube Laser Cutting
Create or Import Tube Cutting Drawings
Using professional tube cutting software (such as TubesT):
- Draw parts directly or import existing CAD files
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Define tube type (round, square, rectangular, etc.)
- Enter tube dimensions and wall thickness
Process and Nesting Setup
- Define cutting paths, pierce points, and lead-ins
- Apply cutting technology parameters
- Perform automatic nesting to optimize material usage
Export the completed task as a cutting program for the machine.
4. Machine Calibration and Debugging
Before cutting, accurate calibration is essential.
Capacitive Calibration
With the tube clamped in the chuck:
- Perform nozzle capacitance calibration
- Ensure stable height control during cutting
B-Axis and Chuck Calibration
- Calibrate the B-axis center
- Check chuck clamping force and support alignment
- Ensure smooth tube rotation without slipping
5. Loading and Centering the Tube
Tube Loading
- Load tubes manually or using an automatic loading system
- Clamp the tube securely with the chuck
Automatic Centering
- Run the automatic tube centering function
- The system detects tube deformation and calculates offset values
- This ensures the laser cutting head stays aligned with the tube center
Accurate centering is a key advantage of modern tube laser cutting machines and directly affects cutting precision.
6. Set Laser Cutting Parameters
Laser cutting parameters must be adjusted according to material and thickness.
Key Parameters Include:
- Cutting speed (m/min)
- Nozzle height (mm)
- Assist gas type (air, oxygen, nitrogen)
- Gas pressure (BAR)
- Peak power (%)
- Duty cycle (%)
- Focus position (mm)
Tip for beginners: Always start with recommended parameters and perform a short test cut before mass production
7. Start the Laser Tube Cutting Process
Trial Cutting
- Click the “Start” button to begin cutting
- Perform a short test cut
- Check edge quality, burrs, and dimensional accuracy
Batch Production
Once the result is confirmed:
- Enable cycle processing mode
- Set production quantity and interval time
- Monitor the cutting process in real time
During cutting, observe:
- Stability of cutting sparks
- Smooth removal of scrap
- Gas pressure and machine status
8. Unloading and Shutdown
After cutting is completed:
Unloading
- Use the unloading system to remove finished parts
- Avoid direct contact with hot materials
Shutdown Procedure
- Turn off the laser source
- Close assist gas valves
- Power down the machine in the correct sequence
- Clean residual scrap from the work area
Safety Tips for Laser Tube Cutting
- Never place hands or body parts inside the protected cutting area
- Press the emergency stop immediately in case of abnormal conditions
- Do not modify parameters without proper training
- Contact technical support if issues cannot be resolved
最終的な感想
チューブを正しくレーザー切断する方法を理解することは、高精度、安定した品質、そして効率的な生産を実現するために不可欠です。標準化されたチューブレーザー切断プロセスに従い、信頼性の高いチューブレーザー切断機を使用することで、メーカーは人件費を大幅に削減し、全体的な生産性を向上させることができます。
最新のファイバーレーザーチューブ切断機は、複雑なチューブ形状を高速かつ安定して加工することを可能にし、現代の金属加工産業において不可欠な存在となっています。
