Magnetic Impelled Arc Butt Welding NO EDGE PREPARATION ! NO FILLER MATERIAL !

Principle of MIAB welding MIAB welding is a forge welding process that relies on an electric arc to generate necessary heating to melt the surfaces being welded. How MIAB welding works? Welding arc rotate in the gap between tubes due to the presence of external magnetic field generated with permanent or electromagnets. The maximum Linear Speed of the arc movement is 870 km/hour. The spinning arc in combination with thermal conductivity of the welded metal creates very uniform heating at the joint. On completion of welding, the welded parts are rapidly brought under pressure.

Applications of MIAB welding Butt welding of thin-walled tubes Butt and T-butt welding of automobile parts Butt welding of thick-walled tubes Butt welding of solid parts Tube to plate welding Tube to flange welding “This machine tool based process is attractive to the mass production industries because of the short cycle times and reproducible quality.”

Materials to be welded Steel Stainless steel Aluminum alloys

Tube Welding MIAB welding reduces weld time by 90%

Optional features of MIAB Two welds can be carried out simultaneously on a double ended machine.  Mobile machines are available. Retractable electromagnetic coils and field profile control for easy loading and unloading of work. Can be configured for automatic flash removal. Mobile MIAB machines can be used on site and allow transmission pipelines to be welded with potential savings due to improved productivity over other arc welding processes.

MIAB welding machines for pipes MD-1 K-872 Equipment composition Machine МD-1 is intended for welding small diameter tubes & pipeline. Machine K-872 is intended for welding pipelines under field conditions. 1. Welding Head 2. Pump Station 3. Control Cabinet 4. Weld Management System 5. DC Power Source

Applications Solid Rods Solid Rod OD 22mm Welding Time:12 s Pull test of weld joint of Reinforcement Rod - OD 32 mm

Applications Tubes & Pipelines Hydraulic Test Result - 72.5MPa. Tubes OD 22 & 48 mm “Pipes with OD up to 219mm can be welded using MIAB”

Automotive applications MIAB welding is predominantly used in the European Automobile Industry Vehicle drive shafts. Rear axle assembly. Wheel bearing housing. Pipe and tube assemblies. Shock absorber assemblies. Threaded sleeves assemblies. Nuts welded to plates. Brake pipes

Applications Shock Absorber Machine MD-103 and MD-102 type for MIAB welding of shock absorber Shock absorber Welded section: OD53x1,8mm. Productivity: 200 butts/hour Welding time: t=2.9 s Material: Steel 20 + Steel 35

Automobile Part: Piston Rod Applications Automobile Part: Piston Rod Piston Assembly: OD22x2.2mm Welding Time: 3.6 s Pull Test. Force of break - 12900 kg Macro section of welded joint x250 micro section of welded joint HAZ 4.4mm Line of Joint

Automobile part: Drive Shaft Applications Drive Shaft OD75x2.1 mm Welding time: 3.8 s Machine K1015 for drive shaft welding OD 70 - 102mm,WT 2-4mm. “The tests conducted on the drive shaft have indicated that MIAB welding does not reduce durability of the drive shaft.”

Automobile Part: Oil Tank Applications Automobile Part: Oil Tank Field for MIAB welding Welded Joint of Connecting Pipe: OD 31.7x 4.1 mm Welding Time: 7 s

Applications Liquid Propane Tanks LP Tank Assembly, Boss Weld Size: OD 31.7 mm, WT 4.1 mm Welding Time: 7 Second LP Tank Assembly, Girth Weld Size: OD203.2, WT2.1 mm Welding Time: 12.5 s Welded Joint after Tensile Elongation Test

Comparison to other welding processes MIAB has replaced automated TIG, MIG, Resistance and Flash Butt Welding. Why MIAB scores over other welding process? Less internal flash. Shorter weld times. Less metal loss. Reduced machine maintenance. Uniform welding. Low power consumption No rotation of components No consumables needed. e.g.. Filler material.

Testimony An executive from the Ford Motor Company summarized their use of MIAB welding in the manufacturing of the Fiesta rear axle cross tube assembly. “In selecting MIAB welding, we first considered other more common welding methods: Friction, Flash, and GMAW. Friction was not acceptable because of the difficulty maintaining the radial relationship between the shaped flange spindles and the axle tube. Flash welding was known to leave clamping marks on parts, and presented problems regarding maintaining part alignment. GMAW was considered a more expensive process to operate and created more alignment problems due to distortion. As a result, they decided to pursue MIAB welding for this application. After optimizing the welding variables, conducting all the necessary testing, and developing the weld quality monitoring procedures, the process was successfully implemented in mass production.”

MIAB- An overview Can weld tube to tube or tube to flange, and can weld irregular or non circular components as easily as circular. One of the fastest methods of welding tube. Welds are free from inclusions and impurities.  An automated process enabling the resulting welds to be highly reproducible. The components are not rotated so the alignment can be maintained.  Uniform heating of the joint results in low distortion. Welds a wide variety of materials including dissimilar combinations. Can be interfaced with automatic handling systems