The electronics housing exhib- its cost- and weight-saving features at every angle.


more weight. T e walls are actually 0.06 in., the same as the other walls in the casting. “It’s rigid, but it is also hollow and light,” Willson said. And though 0.06 in. is a thin wall, in O’Fallon’s in- vestment casting facility, that thickness is fairly optimal for production. “T e customer went as thin on the


part as they could while keeping it producible,” Willson said. “It manufac- tures very well.” All the features the customer put into


the part made for a casting with highly embellished walls, but the designers incorporated one last detail critical to its success: suffi cient gating surfaces. “If you look at the part, it is busy


everywhere, so how do you get the metal into it?” Willson asked. “T ey accommodated the necessary gating into the design with a heavy fl ange.” With a tight design already in


place, it was up to O’Fallon Casting to produce repeatable parts that lived up to the designers’ vision. While the defense customer provided a part


22 | METAL CASTING DESIGN & PURCHASING | May/Jun 2013


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70