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Automated Plasma Gouging in the Pressure Vessel Industry
Industry Pain Points
Carbon arc gouging is manually operated and difficult to automate. The gouging groove size consistency and stability are poor.
Carbon arc gouging produces a lot of slag and the groove is bumpy, which leads to a large amount of grinding work and a long time. If the grinding is not clean, there will be risks to welding quality.
Stainless steel has problems with carbon residue and carbon carburization, and the end user does not approve of the carbon arc gouging method for root cleaning.
High-quality carbon arc gouging requires more skilled and highly skilled welders, and the labor cost and management cost are high.
The gouging site has a poor working environment (strong light/smoke/noise), high labor intensity, and difficulty in recruiting and retaining workers.
Key Features
✅Can be operated manually, semi-automatically or by robots, with high production efficiency
✅ Low noise (lower than 10dB), less smoke and spatter
✅Automated operation, smooth surface of weld groove after root cleaning, good consistency
✅ Easy to remove slag, uniform width, depth and depth of weld, small grinding workload
✅ Suitable for stainless steel operation, no carbon residue and carbon penetration, avoiding welding quality risks
✅ Low power and low power consumption under the same conditions
Component Showcase
American Hypertherm plasma power supply
Gouging gun
Spare parts
Before gouging
After gouging
Application Cases
Technical Parameters
Circumferential seam robot plasma gouging
| Structure | Multi-jointed robot | |||||
| Number of controlled axes | 6-axis (J1, J2, J3, J4, J5, J6) | |||||
| Reachable radius | 1441mm | |||||
| Mounting method | Ground installation, inverted installation, tilted installation | |||||
| (If the tilted installation method is adopted, the motion range of the robot's J1 and J2 axes will be limited.) | ||||||
| Motion range | J1 | 340°/370°（260°/s） | J2 | 235°(240°/s) | J3 | 455°(260°/s) |
| J4 | 380°(430°/s) | J5 | 360°(450°/s) | J6 | 900°(720°/s) | |
| Maximum wrist movement speed | 2000mm/s | |||||
| Maximum wrist load | 12 kg | |||||
| J3 arm maximum load | 12 kg | |||||
| (The wrist is limited according to the weight of the load) | ||||||
| Permissible load torque of wrist | J4 | 26.0 Nm | J5 | 26.0 Nm | J6 | 11.0 Nm |
| Drive mode | AC servo motor drive | |||||
| Repeat positioning accuracy | ±0.02mm | |||||
| Robot weight | 145kg (Weight without robot controller) | |||||
| Input power (average power consumption) | 2 kVA (1 kW) | |||||
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