公开(公告)号：US06678574B2

公开(公告)日：2004-01-13

申请号：US09972940

申请日：2001-10-10

申请人： Takumi Fujii ,  Koji Takeuchi ,  Hiroyuki Tsutsumi ,  Yoshiya Inagaki ,  Atumi Fukuda

发明人： Takumi Fujii ,  Koji Takeuchi ,  Hiroyuki Tsutsumi ,  Yoshiya Inagaki ,  Atumi Fukuda

IPC分类号： G06F1900

CPC分类号： B21K1/26 ,  B21J1/04 ,  B21J5/00 ,  B21J5/02 ,  B21K1/76 ,  B60G7/001 ,  B60G2206/10 ,  B60G2206/7102 ,  B60G2206/81 ,  B60G2206/8101 ,  B60G2206/8105 ,  B60G2206/8106 ,  Y10T29/49622

摘要： A method for producing suspension parts via preforming the workpiece by roll forming. The sectional area and length of the workpiece are calculated. In the former step, more than one orthogonal cross-section is acquired from the suspension part of aluminum alloy, and the sectional area is converted into the area of a circle. An imaginary area is calculated by adding to the converted area an adequate amount of flash. In the latter step, a circular truncated cone is defined from two adjacent imaginary circles and the length of the imaginary center line between the two adjacent imaginary circles. A solid of revolution is defined by connecting these circular truncated cones, and the volume of the suspension part of aluminum alloy is substituted by the volume of the solid of revolution. The value obtained by dividing the sectional area of the workpiece by the volume is regarded as the-length of the workpiece.

摘要翻译： 一种通过辊轧成型预成形工件来制造悬挂部件的方法。 计算工件的截面积和长度。 在前一步骤中，从铝合金的悬挂部分获取多于一个正交横截面，并将截面积转换成圆的面积。 通过向转换的区域添加足够量的闪光来计算虚拟区域。 在后一步骤中，圆形截锥体由两个相邻的假想圆和两个相邻虚圆之间的假想中心线的长度定义。 通过连接这些圆形截锥体来限定旋转实体，铝合金的悬挂部分的体积被旋转体积的体积所代替。 通过将工件的截面积除以体积而获得的值被认为是工件的长度。