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MIG/MAG short-circuiting metal transfer - PowerPoint PPT Presentation

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MIG/MAG short-circuiting metal transfer

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  1. MIG/MAG short-circuitingmetal transfer - Welding conditions for this metal transfer mode - Its advantages and limitations NTUU “KPI”, UFU, PWI TQC E1813-01 Ponomarev V., Slivinsky A.

  2. CO2, or argon based mixtures Ua Argon based mixtures Transition current Globular Streaming rotating Streaming Spray MIG-Pulsed Short-circuiting Iw Transfer modes versus welding current and arc voltage NTUU “KPI”, UFU, PWI TQC E1813-01 Ponomarev V., Slivinsky A.

  3. Iw (A) Ua (V) Iw Ua t (ms) Principle of MIG/MAG short-circuitingmetal transfer NTUU “KPI”, UFU, PWI TQC E1813-01 Ponomarev V., Slivinsky A.

  4. Examples of MIG/MAGshort-circuiting metal transfer In an argon based shielding atmosphere with a restricted short-circuit current In an argon based shielding atmosphere with a low inductance of the welding circuit MAG-CO2 welding MAG-CO2 optimised metal transfer NTUU “KPI”, UFU, PWI TQC E1813-01 Ponomarev V., Slivinsky A.

  5. Welding conditions and application sphere of the short-circuiting transfer Short-circuiting transfer welding conditions: 1. Low and moderate welding current; 2. Low arc voltage; 3. Shielding: CO2 or argon based mixtures. Application spheres: 1. Welding of thin materials (due to a low heat input); 2. Out-of-position welding. NTUU “KPI”, UFU, PWI TQC E1813-01 Ponomarev V., Slivinsky A.