公开(公告)号：USRE37366E1

公开(公告)日：2001-09-18

申请号：US09197308

申请日：1998-11-19

申请人： William Allen Cox ,  Alan Rae Pfaff

发明人： William Allen Cox ,  Alan Rae Pfaff

IPC分类号： B21K520

CPC分类号： B23D35/008 ,  B21B27/03 ,  B21B31/12 ,  B21B31/18 ,  B21B2203/02 ,  B21B2203/34 ,  B21B2203/36 ,  B26D7/2614 ,  B26D2007/2607 ,  Y10T83/2107 ,  Y10T83/483 ,  Y10T83/4836 ,  Y10T83/9399 ,  Y10T83/9464 ,  Y10T83/9471

摘要： A method of making a pair of rotary die cylinders with lands having coacting cutting edges which cut blanks from a web of material passing through the nip of the rotating dies. In cross section each land has an outer face and a pair of spaced apart side faces which are parallel to each other and perpendicular to the chord of the outer face to provide a clean cut and facilitate release of the cut blank from the cutting blades as it emerges from the nip of the dies. The die cylinders are journalled for rotation by recesses with frusto conical locating surfaces in their opposed ends. Each die cylinder is made by machining the recesses in the opposed ends of a generally cylindrical workpiece of tool steel and then utilizing the recesses to locate and orient the workpiece relative to a cutting tool to produce a cylindrical surface on the workpiece concentric with the axis of the recesses and then to machine away portions of the periphery of the cylindrical surface to form the cutting blade lands thereon. After machining is completed the cutting blade lands may be hardened by heat treating utilizing a laser beam directed onto the lands to heat them at an elevated temperature so that upon quenching they are hardened without any substantial hardening and resulting distortion of the core or body of the workpiece.

摘要翻译： 一种制造一对旋转模具缸的方法，其具有具有共同切割边缘的平台，该切割边缘从通过旋转模具的辊隙的材料幅材切割坯料。 在横截面中，每个平台具有外表面和一对间隔开的侧面，它们彼此平行并且垂直于外表面的弦线，以提供干净的切口并便于将切割的坯料从切割刀片上释放 从模具的咬合处出现。 模具缸被支承在其相对端部的具有截头圆锥形定位表面的凹部旋转。 每个模具缸通过在工具钢的大致圆柱形工件的相对端中加工凹槽来制造，然后利用凹槽来定位和定向工件相对于切削工具，以在工件上同轴的圆柱形表面 凹部，然后将圆柱形表面的周边的部分加工，以在其上形成切割刀片台面。 在加工完成之后，可以通过利用被引导到焊盘上的激光束进行热处理来切割刀片焊盘，以便在升高的温度下加热它们，使得在淬火时它们被硬化而没有任何实质的硬化，并导致芯体或主体的变形 工件。