Different from TIG welding, MIG (MAG) welding uses fusible welding wire as the electrode, and uses the arc burning between the continuously fed welding wire and the workpiece to be welded as the heat source to melt the welding wire and the base metal. During the welding process, the shielding gas-argon gas is continuously delivered to the welding area through the welding torch nozzle, so that the arc, the molten pool and the nearby base metal are protected from the harmful effects of the surrounding air. The continuous melting of the welding wire should be transferred to the welding pool in the form of droplets, fused with the molten base metal and condensed to form the weld metal. Aluminum mig welding wire is the welding wire used in MIG welding. During MIG welding, because the melting speed of aluminum welding wire is very fast, the wire feeding speed is high; the rigidity of aluminum welding wire is small and relatively soft, and the thin welding wire is easy to bend during welding, which affects normal welding. Therefore, aluminum mig welding wire is generally used. MIG welding wire is generally coiled or disk-shaped. What is aluminum mig wire used for? Mainly used for welding in sports equipment, pressure vessel, shipbuilding, rail transit and automobile industries.

Aluminum mig welding wire types

According to the difference of aluminum alloy, aluminum mig welding wire can be divided into aluminum mig wire 5183, aluminum mig wire 5356, aluminum mig wire 5556, aluminum mig wire 5554. According to the shape of aluminum welding wire, aluminum welding wire for mig welder can be divided into mig Welding wire, mig welding rod and mig welding ring, according to the different ways of use, can also be divided into flux core aluminum mig welding wire, they are widely used in various industries, according to the material characteristics of the welding object (base metal), choose the right one For the mig welding wire, aluminum mig wire 5183, aluminum mig wire 5356, and aluminum mig wire 5556 are often used for marine grade aluminum plate.

Aluminum MIG welding wire size

aluminum MIG welding wire size chart
Plate thickness or fillet weld size  (mm)	Seam type	Welding wire diameter  (mm)	Current(A)	Voltage(V)	Wire feeding speed  (cm/min)	Gas flow  (L/min)	Number of weld passes	Welding speed per pass (cm/min)
1、 2	I-shaped groove butt joint, fillet welding	0.8	50	12-14	680-780	14	1	42-60
2	I groove and fillet weld	0.8	55-60	12-14	750-810	14	1	42-60
2	I groove and fillet weld	1.2	110-125	19-21	444-468	14	1	48-66
2、 4	I groove and fillet weld	0.8	90-100	14-18	840-942	14	1	60-90
3、 2	fillet weld	0.8	110-125	19-22	1044-1170	14	1	48-60
3	I-shaped groove	1.2	110-125	20-24	444-480	19	1	48-60
5	I groove and fillet weld	1.2	160-195	20-24	546-570	19	1	48-66
6	Fillet welding	1.2	160-195	20-24	546-570	19	1	48-66
6	V-shaped groove	1.6	175-225	22-26	378-498	19	3	48-66
10	V-shaped groove and fillet weld	1.6	200-300	22-26	432-696	19	2-5	66-78
12	V-shaped groove and fillet weld	1.6	220-230	22-27	498-522	19	3-8	30-48
12	X-shaped groove	2.4	320-340	22-29	354-384	21	2-5	36-42
20	X-shaped groove	1.6	255-275	22-27	582-636	24	4-10	18-48
20	X-shaped groove	2.4	355-375	22-29	360-408	24	4-10	12-42
25	X-shaped groove	1.6	255-290	22-27	582-672	24	4-14	18-48
25	X-shaped groove	2.4	405-425	22-27	444-456	24	4-8	18-30

Best wire for mig welding aluminum

what wire for mig welding aluminum? When MIG welding aluminum, because the melting speed of the aluminum welding wire is very fast, the wire feeding speed is high; the aluminum welding wire has low rigidity and is relatively soft. When welding, the thin welding wire is easy to bend, which affects the normal welding. Therefore, it is very important to choose aluminum welding wire suitable for MIG. Wire for mig welding aluminum mainly includes: ER3003, ER3203, ER4043, ER4047, ER5183, ER5356, ER5556 aluminum mig welding wire. So, What’s the best wire for mig welding aluminum?

1,aluminum mig welding wire 5356

Aluminum mig welding wire 5356 is the most widely used aluminum welding wire. It is also the best wire for mig welding aluminum, with good corrosion resistance, high strength, high heat resistance,good ductility. Weld anodizing treatment is still white, can provide a good match for welded joints, is a widely used general consumables. Recommended for welding 5% Mg cast-forged aluminum alloy and 5000 series, some 6000 series, 7000 series deformed aluminum alloys, such as 5050 5052, 5083, 5456, 6005A, 60616063 , 6082, 7005, etc.;

5356 alloy
GB/T 10858	S AL 5356(A)
DIN EN ISO 18273	S AL 5356(AlMgCr)
AWS / ASME A 5.10	ER 5356 、R5356

2, aluminum mig welding wire 5556

Compared with 5356 alloy, 5556 aluminum alloy welding wire has higher magnesium content and manganese content, and has good strength, toughness, processability, weldability and stress corrosion resistance. It is usually used for higher welding strength. The 5000 series aluminum alloys, such as 5083, 5456, 5654 alloys, etc., are also suitable for welding parts of 6000 series and 7000 series deformed aluminum alloys. The typical application areas of 5556 aluminum-magnesium alloy welding wire are shipbuilding, liquid-air products, auto parts, military, containers, industrial structural parts and other industries.

5556 alloy
GB/T 10858	S AL 5556 (A)
DIN EN ISO 18273	S AL 5556 (AlMg5Mn)
AWS / ASME A 5.10	ER 5556、R5556

3,aluminum mig welding wire 5183

5183 aluminum alloy welding wire is a refined aluminum alloy welding wire with a magnesium content of about 4.5% plus zirconium. It has high strength, good corrosion resistance, good bending performance and good resistance to thermal cracking. 5183 aluminum alloy welding wire is suitable for welding parts of 5000 series, 6000 series, 7000 series deformed aluminum alloys, such as 5083, 6005A, 6082, 7005, 7020, etc.

5183 alloy
GB/T 10858	S AL 5183 (A)
DIN EN ISO 18273	S AL 5183 (AlMg4,5Mn0.7)
AWS / ASME A 5.10	ER 5183、R5183

4,aluminum flux core mig welding wire

According to the structure of aluminum welding wire, flux-cored welding wire can be divided into seam welding wire and seamless welding wire. According to whether there is shielding gas, flux-cored welding wire can be divided into gas shielded welding wire and self-shielded welding wire; the composition of the core powder of flux-cored welding wire is similar to that of electrode coating, including arc stabilizing agent, deoxidizer, slag-forming agent and alloying agent, etc. According to the presence or absence of slag-forming agent in the inner filler powder of the flux-cored wire, it can be divided into "powder type" welding wire and "metal powder type" welding wire; according to the alkalinity of the slag, it can be divided into titanium type, titanium calcium type and calcium type welding wire .

5,mig wire for 6061 aluminum

The aluminum alloy welding wire tailor-made for the 6 series base metal solves the problem of surface anodic oxidation color difference after welding, but the welding is prone to cracks, which is the most important reason why the aluminum welding wire of this alloy is less used.

Aluminum mig wire 5356 vs 4043

ER4043 and ER5356 aluminum welding wires are widely used for welding.

ER4043 is usually used as ALSil, which is an aluminum filler metal containing 5% silicon. It can be recommended for welding 3003, 3004, 5052, 6061, 6063 and casting metals 355, 356 and 214. The melting point of ER4043 is in the range of 1065-1170oF, the color after anodization is off-white, and the tensile strength is as low as 186MP.

Performance characteristics: It is a kind of aluminum-silicon alloy welding wire with greater versatility. The weld metal has excellent thermal crack resistance and can also guarantee certain mechanical properties. However, in the case of anodizing treatment, the color of the weld metal and the base metal In contrast, colleagues' welding of aluminum, magnesium, and gold generates brittle Mg2Si in the weld, which reduces the plasticity and corrosion resistance of the joint.

ER5356 is usually used as ALMg5, which is an aluminum alloy filler metal containing up to 5% of magnesium. It can be used for MIG or TIG welding. It has good seawater corrosion resistance. It can generally be applied to base materials 5050, 5052, 5083. , 5356, 5454 and 5456 welding. Its color after anodization is white, and its tensile strength is 290MP.

Performance characteristics: This product is an alloy welding wire with a magnesium content of 5％. It is a universal welding material with a wide range of uses. It is suitable for welding or surface surfacing welding of cast and forged aluminum alloys of 5％magnesium. It has high strength and can be used. Good forgeability and good corrosion resistance.