The concept of rotor stator bonding means using 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. We can list the major advantages bonding on rotor and stator as following ;

Bonding provides numerous advantages in terms of production and operation, allowing engineers designing motors to choose from a wide range of adhesives. Many companies have been leading in producing electric cars as an ideal solution for efficient and sustainable mobility of the future. Rotor stator bonding often helps reduce production costs. It allows manufacturers to expand the tolerances of components, enables easy and efficient automation, and can be used without heat input.

Differently, the concept of 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. If we come to the advntages of welding on rotor stator, using resistance welding is that electrodes are actually in contact with the parts and compress the product during the process whilst the movement and force can be measured. This gives the end user improved process control and the ability to conduct quality checks. This is a big plus—the system keeps track of what is happening and users can log and store data, then go back to that data if something goes wrong.