en.Wedoany.com Reported - Han's Laser Smart Equipment Group Co., Ltd. has launched a high-power laser welding solution targeting pain points in automotive transmission component welding, covering multiple scenarios such as clutches, differentials, gears, and flywheels. It achieves precision control with post-weld concentricity under 0.1 mm, providing reliable support for the industry.

In the evolution of automotive manufacturing toward precision, efficiency, and lightweight design, the welding of transmission components such as clutches, differentials, and transmission gears faces core challenges including high process difficulty, diverse materials, and stringent alternating load testing. Weld seams are mostly annular structures, with deformation control and radial/axial runout accuracy highly dependent on specialized processes and precision fixtures. Materials cover low-carbon alloy steel, alloy structural steel, ductile iron, etc., requiring strict control over defects such as porosity and cracks. Weld seams must pass stress, fatigue, and vehicle-mounted tests while balancing sealing and aesthetics.

For clutch welding, Han's Laser adopts a ring-shaped spot laser autogenous welding process, suitable for butt annular welds between the housing and shaft, with post-weld concentricity controlled within 0.10 mm. This process integrates automatic slag removal, online weld inspection, data collection and traceability, and remote maintenance systems, enabling the formation of a clutch laser welding production line covering the entire process from robot loading, welding, unloading, grinding, marking to final unloading, achieving full-process automation.

For differential welding, a filler wire welding process is used, suitable for butt radial and axial annular welds between the differential case and driven gear, with simultaneous workpiece clamping during welding. Compared to traditional bolted connections, this process eliminates bolts and corresponding steps, reduces the size and thickness of the load-bearing flange, achieving weight reduction and compact structure. The supporting differential welding automated assembly line integrates full processes including laser cleaning, gear heating, thermal assembly, resistance torque detection, laser welding, and weld grinding, realizing automated precision manufacturing from component pretreatment to finished product output.

For transmission gear welding, a deep penetration laser welding process is adopted, integrating gear cleaning and drying, press fitting, preheating, welding, and online inspection. It achieves weld depths exceeding 5 mm and depth-to-width ratios greater than or equal to 3, with large weld depth-to-width ratios and minimal deformation. During welding, shielding gas is added to protect the molten pool, and a weld quality monitoring system is configured. Through online monitoring and ultrasonic testing, precise control of weld depth and defects such as porosity is achieved, with strict control of coaxiality and end face runout after welding.

The flexible flywheel laser welding automated production line solution uses full automation for the complete assembly and processing of flywheels, with automatic loading and unloading at each step. The welding process requires a penetration depth of no less than 3 mm, with strong, aesthetically pleasing welds free of cracks and pores larger than 0.5 mm in diameter, minimal welding deformation, good weld formation, and smooth external surface transitions.

Additionally, this technology can be adapted for welding various other transmission-related components such as pistons, steering columns, crash boxes, turbochargers and valves, silicone oil dampers, and shift forks, forming a combination of standardized and customized solutions. Han's Laser Smart Equipment Group's high-power welding technology now comprehensively covers Automotive Industry" target="_blank">new energy vehicle motors and batteries, as well as automotive structural parts, coverings, body-in-white, seats, transmission components, and other parts, forming a complete capability covering multiple scenarios of intelligent automotive manufacturing.

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