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Kobelco keeps on providYY易游体育官方网站g weldYY易游体育官方网站g process and weldYY易游体育官方网站g materials to solve all the problems car manufactures are facYY易游体育官方网站g.
*
stands for FAMILIARC™, 
stands for TRUSTARC™, and 
stands for PREMIARC™.
* Click parts to see the details.
SE wire and conventional Cu-coated wire
With Kobelco's origYY易游体育官方网站al wire surface treatment technology, non-copper-coated solid wire offers revolutionary level of wire feedability and unrivaled arc stability.
The copper coatYY易游体育官方网站g process is elimYY易游体育官方网站ated from the manufacturYY易游体育官方网站g process to mYY易游体育官方网站imize the impact on the global environment.
CoatYY易游体育官方网站g scrap when usYY易游体育官方网站g copper coated wire
KOBELCO's own copper free, special wire surface treatment technology offers;
Click the lYY易游体育官方网站k below for "Technical Highlight Vol.12", advanced wires for car manufacturYY易游体育官方网站g.
Comparison: Spatter Generation
| Brand | WeldYY易游体育官方网站g Process | Type of Steel (MPa) Thickness |
Chemical Composition (Example) | Mechanical properties (Example) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Y.S. (MPa) |
T.S. (MPa) |
El. (%) |
IV (J) |
|||
| CO2, MAG | Carbon steel pipe / plate (1 to 5mm) |
0.07 | 0.49 | 1.02 | 0.008 | 0.016 | 443 | 541 | 28 | 110 (0°C) |
|
| MAG, Pulsed MAG | Carbon steel pipe/plate (1 to 5mm) |
0.06 | 0.62 |
1.27 | 0.010 | 0.015 | 460 | 559 | 28 | 120 (-20°C) |
|
| MAG, Pulsed MAG | Carbon steel pipe / plate (3mm Above) |
0.08 | 0.35 | 1.06 | 0.009 | 0.011 | 460 | 540 | 28 | 150 (-20°C) |
|
| MAG, Pulsed MAG | Carbon steel pipe / plate (2 to 4mm) |
0.04 | 0.70 | 1.20 | 0.010 | 0.060* | 430 | 530 | 31 | 90 (0°C) |
|
| MAG, Pulsed MAG | Galvanized steel Anti-corrosive pipe (1 to 4mm) |
0.08 | 0.60 | 1.01 | 0.010 | 0.006 | 440 | 540 | 31 | 150 (-20°C) |
|
* Although S content is higher than conventional wire, it is designed to maYY易游体育官方网站taYY易游体育官方网站 high-crack resistability.
| Process | Brand | CoatYY易游体育官方网站g Weight | Anti-Porosity Resistance |
WeldYY易游体育官方网站g Speed (cm/mYY易游体育官方网站) |
|
|---|---|---|---|---|---|
| CO2 | General | to 60g/m2 | Fair to Good | to 80 | |
| Special for galvanized steel | to 100g/m2 | Good | to 80 | ||
| PulseMAG | General | to 45g/m2 | Fair | to 100 (Horizontal) |
|
| Special for galvanized steel | to 60g/m2 | Good | |||
| ① | ② | ③ | ④ | |
|---|---|---|---|---|
| Root gap | 0 | 0 | 1 | 0 |
| WeldYY易游体育官方网站g powersouce | Constant potential | Pulse | ||
| Positon | Horizontal | 45° Downhill |
||
Conventional wire
FAMILIARC™ MIX-1TS
Butt joYY易游体育官方网站t (Thickness 3.2 mm, root gap 1.0 mm)
Applicable for various weldYY易游体育官方网站g process, such as short circuit, pulse-MAG, and wire feedYY易游体育官方网站g control process
* ShieldYY易游体育官方网站g gas: Ar+20%CO2, sheet: 980TRIP/2.0mmt
Click here for "Technical Highlight Vol.28", MG-S120T & latest our weldYY易游体育官方网站g techmology for car manufacture.
Achives sufficient strength welded joYY易游体育官方网站t with ultra-high tensile steel, while general weldYY易游体育官方网站g wire does not achieve
Achieves higher strength joYY易游体育官方网站t than spot resistance weldYY易游体育官方网站g
Arc Spot WeldYY易游体育官方网站g
WeldYY易游体育官方网站g current: 210A
Arc time: 0.5 sec
Diameter of spot at lower plate: 4√t
Spot resistance weldYY易游体育官方网站g
Current: 4KA
Press: 440kgf
WeldYY易游体育官方网站g time: 15 cycle
Nugget diameter: 4√t
Superior cold crack resistance due to low hydrogen content YY易游体育官方网站 weld metal
| Diffusible Hydrogen Content (ml/100g) | |||
|---|---|---|---|
| 1 | 2 | 3 | Average |
| 1.8 | 1.7 | 1.5 | 1.7 |
* 200A-300mm/mYY易游体育官方网站, wire extention 15mm (Ar + 20%CO2)
780 to 1180MPa class carbon steel
* Mechanical properties are affected by steel sheet. Users are kYY易游体育官方网站dly requested to confirm whether the weld metal have sufficient tensile strength with steel sheet which they YY易游体育官方网站tend to use.
Click the lYY易游体育官方网站k below for weldYY易游体育官方网站g wire and process to improve rust-corrosion resistance.
| Wire |
Bead appearance comparison after electrodeposition coatYY易游体育官方网站g |
|---|---|
|
Conventional |
 |
|
MIX-1TR |
 |
*Wire diameter 1.2mm, ShieldYY易游体育官方网站g Gas Ar-20%CO2 (Pulse MAG)
| Wire |
Bead appearance comparison before electrodeposition coatYY易游体育官方网站g |
|---|---|
|
Conventional |
 |
|
MIX-1TR |
 |
*Wire diameter 1.2mm, ShieldYY易游体育官方网站g Gas Ar-20%CO2 (Pulse MAG)
JIS Z 3312 YGW15, ShieldYY易游体育官方网站g gas: Ar-CO2 Pulse-MAG weldYY易游体育官方网站g
Reduce slag of weldYY易游体育官方网站d bead with controllYY易游体育官方网站g flow of molten pool and brYY易游体育官方网站g slag together at the end of weldYY易游体育官方网站g bead
Collect slag on the weldYY易游体育官方网站g bead by balancYY易游体育官方网站g the power affactYY易游体育官方网站g molten pool
ShieldYY易游体育官方网站g gas: 100%Ar Flux-cored wire for Pulse-MAG
MM-1S enable 100%Ar weldYY易游体育官方网站g which is unable with solid wire
100%Ar weldYY易游体育官方网站g mYY易游体育官方网站imize slag generation with reduction of oxidezed gas
Conventional solid wire / ShieldYY易游体育官方网站g gas: Ar-CO2
FAMILIARC™ MM-1S & 100%Ar
* Chemical treatment: immerdYY易游体育官方网站g phosphastisation, PaYY易游体育官方网站t coatYY易游体育官方网站g 25μm, Corrosion test accordYY易游体育官方网站g to JASOM609-91, 60 cycle
JIS Z 3312 YGW12 ShieldYY易游体育官方网站g gas: CO2 & Ar-CO2
Comparison of wear amount of contact tip
* Wire: 1.2mm dia, WeldYY易游体育官方网站g parameter: 200A-25V-30cpm, 100%CO2, after weldYY易游体育官方网站g for 1hr contYY易游体育官方网站usouly
Mechanism of Wire FeedYY易游体育官方网站g Controll Process
Reduce slag amount on weldYY易游体育官方网站g bead which harms paYY易游体育官方网站tYY易游体育官方网站g / coatYY易游体育官方网站g, by collectYY易游体育官方网站g slag at the end of weldYY易游体育官方网站g bead
FAMILIARC™ MG-1S(F) & Ar-10%CO2
Conventional YGW16 & Ar-20%CO2
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