Automobile

Kobelco keeps on providing welding process and welding materials to solve all the problems car manufactures are facing.

* Familiarc stands for FAMILIARC™, Trustarc stands for TRUSTARC™, and Premiarc stands for PREMIARC™.

Welding Consumables for Automobiles
SE wire, Non-Cu Coated Solid Wire
Welding Solution - Galvanized Steel
Welding Wire for Ultra-High Tensile Steel
Welding Process to Improve Rust Corrosion Resistance
Welding Wire to Achieve Slag-Less welding
Welding Wire Specially for Wire Feeding Control Process

Welding Consumables for Automobiles

* Click parts to see the details.

Welding Consumables for Automobiles

SE wire, Non-Cu Coated Solid Wire

SE wire and conventional Cu-coated wire

With Kobelco's original wire surface treatment technology, non-copper-coated solid wire offers revolutionary level of wire feedability and unrivaled arc stability.
The copper coating process is eliminated from the manufacturing process to minimize the impact on the global environment.

Features

Coating scrap when using copper coated wire

KOBELCO's own copper free, special wire surface treatment technology offers;

Excellent wire feedability & stable arc
Low spatter
No trouble caused by copper coating scrap

Click the link below for "Technical Highlight Vol.12", advanced wires for car manufacturing.

"Technical Highlight Vol.12", advanced wires for car manufacturing.

Comparison: Spatter Generation

Spatter ganeration

Series of SE Wire for Automobile

Brand	Welding Process	Type of Steel (MPa) Thickness	Chemical Composition (Example)					Mechanical properties (Example)
Brand	Welding Process	Type of Steel (MPa) Thickness	C	Si	Mn	P	S	Y.S. (MPa)	T.S. (MPa)	El. (%)	IV (J)
SE-50T	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)
SE-A50	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)
SE-A50S	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)
SE-A50FS	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)
SE-A1TS	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 maintain high-crack resistability.

Application to Automobile Parts

Application to automobile parts

FAMILIARC™ SE-A50FS: Beautiful Flat and Expansive Beads

Excellent bead contour in high speed welding, such as 90 to 140cm/min, without humping and undercut.
Welding slag is condensed in one spot, not dispersed, and low in quantity.
Its flat, wide bead shape is less likely affected by welding parameter, and more tolerble to deviated wire tracking.

Welding Solution - Galvanaized Steel Sheet

Welding Consumables for Galvanized Steel Sheet

Process	Brand		Coating Weight	Anti-Porosity Resistance	Welding Speed (cm/min)
CO₂	General	SE-50T	to 60g/m²	Fair to Good	to 80
CO₂	Special for galvanized steel	MG-1Z SE-1Z	to 100g/m²	Good	to 80
PulseMAG	General	SE-A50	to 45g/m²	Fair	to 100 (Horizontal)
PulseMAG	Special for galvanized steel	MIX-1TS SE-A1TS	to 60g/m²	Good	to 100 (Horizontal)

FAMILIARC™ MIX-1TS / FAMILIARC™ SE-A1TS

Excellent Anti-Porosity Resistance

	①	②	③	④
Root gap	0	0	1	0
Welding powersouce	Constant potential	Pulse
Positon	Horizontal			45° Downhill

Excellent weldability with root gap

conventional wire

Conventional wire

MIX-1TS

FAMILIARC™ MIX-1TS

Butt joint (Thickness 3.2 mm, root gap 1.0 mm)

High Speed welding at downhill positon

Excellent weldability for gap

Welding Wire for Ultra-High Tensile Steel

Feature 1

Applicable for various welding process, such as short circuit, pulse-MAG, and wire feeding control process

Feature 1

* Shielding gas: Ar+20%CO₂, sheet: 980TRIP/2.0mmt

Click here for "Technical Highlight Vol.28", MG-S120T & latest our welding techmology for car manufacture.

Technical Highlight Vol.28", MG-S120T & latest our welding techmology for car manufacture..

Feature 2

Achives sufficient strength welded joint with ultra-high tensile steel, while general welding wire does not achieve

Feature 2

Feature 3

Achieves higher strength joint than spot resistance welding

Feature 3

Arc Spot Welding

Arc Spot Welding

Welding current: 210A
Arc time: 0.5 sec
Diameter of spot at lower plate: 4√t

Spot resistance welding

Spot resistance welding

Current: 4KA
Press: 440kgf
Welding time: 15 cycle
Nugget diameter: 4√t

TRUSTARC™ MG-S120T

Diffusible Hydrogen Content (According to JIS Z 3118)

Superior cold crack resistance due to low hydrogen content in weld metal

Diffusible Hydrogen Content (ml/100g)
1	2	3	Average
1.8	1.7	1.5	1.7

* 200A-300mm/min, wire extention 15mm (Ar + 20%CO₂)

Applicable type of steel

780 to 1180MPa class carbon steel

* Mechanical properties are affected by steel sheet. Users are kindly requested to confirm whether the weld metal have sufficient tensile strength with steel sheet which they intend to use.

Welding Process to Improve Rust Corrosion Resistance

Click the link below for welding wire and process to improve rust-corrosion resistance.

FAMILIARC™ MIX-1TR -the Solid Wire to Improve Electrodeposition Coating Property

FAMILIARC™　MIX-1TS provides the weld with improved electroposition coating properties with the exsititing equipment.
Undercut is not likely to occur at the toe of the welded bead even in the welding of sheets with gaps.
Bead configuration is not likely to become convex even in high speed welding.
Stable welding with little spatter is possible by selecting optimum welding parameters.