Electric Vehicle Lithium Battery Pack Casing

Absolutely. We have a dedicated structural engineering team for automotive-grade battery packs. You simply need to provide the cell specifications (e.g., 280Ah LFP or NMC cells), target pack dimensions, energy density, and chassis mounting points. We can then submit a DFM report covering material selection, FSW (Friction Stir Welding) seam layout, and preliminary FEA stiffness simulations.

FSW is a solid-state joining process in which the aluminum alloy does not melt. Consequently, it avoids defects common to traditional fusion welding-such as porosity, cracking, and high residual stress-and results in thermal deformation that is only 10%–20% of that seen in traditional arc welding. Furthermore, FSW produces highly dense welds that meet stringent airtightness requirements, making it the optimal process for joining water-cooling baseplates to long frame structures.

No, it is not. During the prototype development stage (A-sample/B-sample), we manufacture samples using large-scale 5-axis CNC machining, high-precision welding, and simple forming/bending tools. This eliminates the need for costly production-grade extrusion or casting molds, thereby significantly reducing your upfront R&D CAPEX and shortening delivery times.

We offer two mainstream integration solutions: first, bonding a blow-molded or extruded aluminum water-cooling plate to the enclosure baseplate using thermally conductive adhesive; and second, using Friction Stir Welding (FSW) to weld the coolant channel cover plate directly to the enclosure baseplate as a single, integrated unit. To eliminate leakage risks, all water-cooling channels undergo a 1.2 MPa hydrostatic pressure hold test and periodic sampling for 100,000 thermal pulse cycles prior to shipment, ensuring zero leakage throughout the product's lifecycle.