Assembling Technology Using Magnetic Force for Micromachines

Abstract

This paper investigates a new process for assembling micro parts by bonding element using magnetic polarity, attraction and taper shape. In the proposed processes, first the parts are positioned and connected tentatively by the magnetic torque and force of bonding elements. The taper shape of the bonding elements is also used for accurate positioning. After being positioned accurately by bonding elements, a hot melt layer of the bonding element is melted by local heating to establish a strong bonding. The positioning error in the tentative connection and the bonding strength of hot melt layer were evaluated. A block assembly equipment was also fabricated. Automatic assembly tests reveal the validity of this new assembly method.