Abstract: This vehicle subframe (15) includes a main body section (32) that results from a top section (41) and a bottom section (42) being provided with a predetermined gap in the vertical direction by means of being formed in a hollow shape by means of a core unit (80). A central joining section (38) is provided to the front-half section (32g) at the center (32h) in the vehicle widthwise direction of the main body section (32). Furthermore, in the main body section (32), a rear partition wall (64) is joined to the top section (41) and the bottom section (42) at the rearwards direction of the vehicle with respect to the central joining section (38). The rear partition wall (64) extends in the front-back direction of the vehicle.

Abstract: A vehicle subframe includes a hollow body part and a loft suspension support part provided to a left end part of the body part. The left suspension support part has a left front connecting part, and the left front connecting part is opened downward ward and laterally outward, whereby a left suspension arm is connected from a laterally outward side. A parting line mark of the subframe is formed in a bottom end part of a front connecting wall, and is formed in a laterally outward side part of the front connecting wall so as to extend upward from the bottom end part along the laterally outward side part.

Abstract: A vehicle sub-frame includes a hollow body having a hollow part thereinside formed by casting using a core. The hollow body includes a front wall and a rear wall. The front wall has a front bulging section formed to bulge outward at a position corresponding to a parting line. The front bulging section is formed on a part avoiding a top wall and a bottom wall of the hollow body. The rear wall has a rear bulging section formed to bulge outward at a position corresponding to the parting line. The rear wall is formed on a part avoiding the top wall and the bottom wall.

Abstract: A differential capable of satisfying a demand for an improvement in performance and a reduction in cost in which the pinion shaft 19 is movably disposed in the differential case 2, and sliding bearings 16, 41, 42 are disposed between mutually opposite surfaces of the pair of side gears 13 and the differential case 2 and between mutually opposite surfaces of the pinions 12 and the differential case 2, respectively.

Abstract: A differential capable of satisfying a demand for an improvement in performance and a reduction in cost in which the pinion shaft 19 is movably disposed in the differential case 2, and sliding bearings 16, 41, 42 are disposed between mutually opposite surfaces of the pair of side gears 13 and the differential case 2 and between mutually opposite surfaces of the pinions 12 and the differential case 2, respectively.

Abstract: An aluminum alloy die casting method comprising the steps of providing a die casting machine having a gate for allowing passage of molten aluminum alloy, setting a flow rate of the molten aluminum alloy at the gate to be in a range of 5 m/sec to 15 m/sec, and press-injecting the molten aluminum alloy into a cavity of a die. With this arrangement, it becomes possible to obtain a weldable casting with no entrapment of air. An aluminum alloy for a vehicular part, which is formed of a die cast product manufactured by the die casting method of the present invention, is weldable and also dense in structure. As a result, these vehicular parts formed of the die-cast products are manufactured on a large scale at a low cost.