The motor housing, as the component with the largest weight proportion in the electric vehicle drivetrain system, requires a design that ensures strength while also pursuing light weighting. Currently, aluminum alloy die-cast housings typically achieve wall thicknesses in the range of 3.3 to 4 mm. Considering the primary load-bearing role of critical areas such as bearings in the gearbox, the wall thickness of the bearing seat must be designed to reach 6 to 8 mm. Meanwhile, the wall thickness of other areas, such as bolts and bosses, must be determined based on bolt specifications. Wall thickness analysis is a critical aspect of the housing's process design.
EXCELLENCE IN INNOVATION
The Simons team boasts over 10 years of extensive industry experience in process design and casting production, having assisted numerous clients in the development and validation of new products. This includes expertise in wall thickness analysis, draft angle handling, parting line and ejection direction determination, reinforcement rib layout, chamfer and fillet transitions, reasonable machining assembly clearances (consideration and selection of clearance fits, transition fits, and interference fits), rational bolt arrangement, as well as validation of mating surfaces and sealing effectiveness.
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