Blind riveting is a mechanical joining process in which a rivet gun pulls the mandrel to expand the rivet body and clamp the workpieces. Its core advantages lie in four aspects: single-sided operation, simplicity and reliability, low cost, and suitability for thin sheets. It requires no double-sided access and can be completed with only one-side contact

Arc welding is a fusion welding process that uses an electric arc as the heat source. The mainstream types include MIG/MAG (Metal Inert/Active Gas Welding) and TIG (Tungsten Inert Gas Welding), making it the most adaptable and widely used fusion welding process in industrial manufacturing. MIG/MAG welding is suitable for medium-thick plate structures

Pressure riveting is a thermal-free joining process that uses specialized equipment to apply static pressure to press fasteners such as nuts, studs, and screws into prefabricated holes in sheet metal, creating a plastic deformation interlock between the fastener and the sheet metal. Its core features include: static forming with zero thermal damage

Dimensional inspection serves as the quality gatekeeper in new energy manufacturing. By accurately measuring product dimensions, geometric tolerances, and surface defects, it ensures products meet design specifications. Its core value lies in guaranteeing assembly precision, improving product consistency, eliminating defective parts, and supporting process optimization. Excessive dimensional deviations in batteries, vehicle bodies, and components of new energy vehicles can cause assembly jams

Hemming is a core forming process for automotive exterior panels. It gradually folds and presses the flange of a door outer panel inward by 180° using a roller to wrap and firmly join the inner panel. Its core characteristics include attractive joining, excellent sealing, no welding spots, and high flexibility. After hemming, the panel surface is free of welding spots