Lamination Bonding

motor core assemblyAs an ISO 9001:2015 Certified company with fully integrated turnkey manufacturing capabilities, Laser Technologies can produce your motor, generator, and pole lamination bonding and core assembly.

Lamination Bonding is one of our core competencies! We differentiate ourselves from the competition with comprehensive in-house capabilities, including our dedicated engineering department, full-time welding staff, state-of-the-art manufacturing facilities, and Quality Assurance team. Our highly skilled technicians perform MIG and TIG welding, as well as YAG, spot, laser, and CNC robotic welding. We can also bond your core assembly using staking, skewing, tabbed, and riveting processes. Our passion, capabilities and service make us a leader in manufacturing electric motor laminations.

We offer turnkey lamination bonding & assembly services for stator cores, rotors, armatures, and pole lamination assemblies. We can reverse engineer and manufacture stator laminations, rotor laminations, armature laminations, lamination end plates, finger plates, vent assemblies, and pressure plate rings. Finished stator cores, armatures, and rotors can be shipped to your facility ready to be wound.

From reverse engineering to final production, Laser Technologies custom tailors manufacturing and assembly solutions for your company's specific assembly requirements.

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Bonded Core Assembly

Our Lamination Bonding process uses a roll coat process that applies an insulating adhesive bonding agent to the motor lamination sheets after punching or laser cutting. The laminations are then put into a stacking fixture under pressure and heated a second time to complete the cure cycle. Bonding eliminates the need for a rivet joints or welding of the magnetic cores, which in turn reduces interlaminar loss. The bonded cores show optimal thermal conductivity, no hum noise, and do not breathe at temperature changes. Therefore, interlaminar corrosion is avoided.

MIG & TIG Welded Core Assembly

MIG - Metal inert gas welding is a welding process in which an electric arc forms between a consumable wire electrode and the workpiece metal which heats the workpiece metal causing them to melt and join. The weld area is protected from atmospheric contamination by an inert shielding gas. TIG welding is the most common industrial welding process, preferred for its versatility, speed, and the relative ease of adapting the process to robotic automation.

TIG - Tungsten inert gas welding is an arc welding process that uses a tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas, and a filler metal is normally used. TIG welding grants the operator excellent control over the weld, allowing for stronger, higher quality welds. However TIG welding is comparatively more complex and furthermore, it is significantly slower than most other welding techniques.

Laser Welded Core Assembly

Laser welding is an automated welding technique used to join stacked rotor and stator laminations through the use of a fiber optic laser. The beam provides a concentrated heat source, which allows for narrow, deep welds at high welding rates. The spot size of the laser is roughly .002" in diameter with penetration depths of .020", making this an excellent choice for small motor core assemblies.

Mechanical Core Assembly

Mechanical Core Assembly utilizes many different methods to mechanically join a stack of rotor and stator laminations. Staking, riveting and tabbing are just a few methods Laser Technologies can employ. We have a full service machine shop and fabrication department that can reverse engineer and reproduce most mechanical fastened designs.