SURFACE COLD LAP

DEFECT WELD

(VISUAL)

SURFACE COLD LAP

SURFACE COLD LAP

Because
1. Temperature metal low.
2. Capping ampère low.
3. Swing not fixed.
4. The surface of the material dirty.

Result
1. Is incomplete fusion Potentially crack.
2. Arising suspicion that all lane welds been implemented ampère low so as to lead to fusion between elementary substance with the welds or inter lane imperfect.

Countermeasures :
1. If suspicion not proved , then cold laps sufficient in grindstone with the uniform.
2. If suspicion proven and all the troubled demolished ,repair welding as WPS repair .
3. If it is still troubled,Change welder.

Rejection criteria :
The existence of surface cold laps were rejected and must be repaired.

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INVERTEC® V155-S STICK WELDER (SMAW)

INVERTEC® V155-S STICK WELDER

Top Features

• Two stick modes, SOFT and CRISP, provide the right arc characteristics for different types of electrodes.
• Fan-As-Needed™ (F.A.N.™) reduces noise and dust inside the machine.
• Auto-Adaptive Arc Force minimizes electrode sticking in the puddle without compromising arc stability or increased spatter.
• Automatic Hot Start boosts the current during starting to make striking an arc easier.
• Touch Start TIG® mode – it’s like getting a TIG welder for free!

Input Power

• 115/230/1/50/60

Processes

• Stick, DC TIG

Portable. Professional. Rugged. Affordable.


The Invertec® V155-S offers much more than you would expect from a welder this size. Weighing in at just under 15 lbs. (6.8 kg) the Invertec® V155-S is no lightweight contender. It packs the full punch of a heavyweight professional that you can take to the most demanding job sites. It features 120/230V auto reconnect operation and can operate from a portable generator. It can also plug into a 200 ft. (61 m) 230V extension cord so you can weld just about anywhere.

• Two stick modes, SOFT and CRISP, provide the right arc characteristics for different types of electrodes. 
• Fan-As-Needed™ (F.A.N.™) reduces noise and dust inside the machine. 
• Auto-Adaptive Arc Force minimizes electrode sticking in the puddle without compromising arc stability or increased spatter. 
• Automatic Hot Start boosts the current during starting to make striking an arc easier. 
• Touch Start TIG® mode – it’s like getting a TIG welder for free!

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RANGER® 305 G EFI FALL CAMO CASE ENGINE DRIVEN WELDER (KOHLER®)

Top Features

• Kohler® Gasoline Engine - 25 HP EFI (Electronic Fuel Injection) for easier starts in cold weather and lower fuel use!
• Multi-Process Welding - Excellent DC multi-process welding for general purpose stick, downhill pipe (stick), TIG, cored-wire, MIG (CO2 and mixed gas) and arc gouging.
• Digital Weld Meters - makes it easy to precisely pre-set your procedures and monitor actual welding output.
• Superior Arc Performance - Lincoln Chopper Technology® provides easy starts, a smooth arc, low spatter and excellent bead appearance.
• Peak Single-Phase AC Generator Power for Motor Starting - 12,000 watts peak for motor starting

Processes

Stick, TIG, MIG, Flux-Cored

A WELDER FOR ALL SEASONS

Make the Ranger 305 G your portable welding station - general stick and downhill pipe, Touch Start™ TIG, MIG, and flux-cored wire capability. Choose the Ranger 305 G EFI (electronic fuel injection) for easier starts in cold weather and lower fuel consumption, with no choke starting required. The 9,500 watt continuous single-phase AC generator powers motors starting, tools and inverter welders for extended range and process capability.

Digital weld meters monitor actual welding output
12-gallon fuel capacity allows for extended operation
Electric fuel pump helps avoid vapor lock during high-altitude operation

Kohler® Gasoline Engine

• 23 HP carburetor. 
• 25 HP EFI (Electronic Fuel Injection) for easier starts in cold weather and lower fuel use! 
• Both engines have electric fuel pump to avoid vapor lock at high altitude operation. 

Multi-Process Welding 

• Excellent DC multi-process welding for general purpose stick, downhill pipe (stick), TIG, cored-wire and MIG (CO2 and mixed gas). 
• Only compact gasoline welder in North America rated at 29V for 300 amps of stick or CV welding. 
• CV wire welding with up to 5/64 in. (2.0 mm) diameter electrodes. 

Digital Weld Meters

• Digital weld meters for amps and volts makes it easy to precisely pre-set your procedures and monitor actual welding output. 

Superior Arc Performance

• Lincoln Electric Chopper Technology® – provides easy starts, a smooth arc, low spatter and optimal bead appearance. 

Peak Single-Phase AC Generator Power for Motor Starting

• 10,500 watts peak, 12,000 for EFI. 
• 9,500 watts continuous for high capacity needs such as a back-up generator, powering a Lincoln Electric Invertec® inverter welder. Also use for lights, a grinder or other power tools. 
• AC generator voltage is constant at 120V or 240V at any weld dial setting. 

Skewed Rotor Design

• Skewed rotor design provides AC power suitable for operating Lincoln Electric inverter power sources. Lincoln Electric was the first in the welding industry with this feature. 

Rugged Reliability

• Welding and AC Generator Outputs rated at 104°F (40°C).

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