公开(公告)号：US06634836B2

公开(公告)日：2003-10-21

申请号：US09987235

申请日：2001-11-09

申请人： John Francis Nolan ,  Ralph Arnold Pollock ,  Todd Joseph Fischer

发明人： John Francis Nolan ,  Ralph Arnold Pollock ,  Todd Joseph Fischer

IPC分类号： B23D3700

CPC分类号： B23P6/00 ,  B23D37/22 ,  Y10T407/16 ,  Y10T407/1685

摘要： A broach assembly includes an elongated base having a central upward projection and a pair of side flanges and a tapered undersurface. Releasably mounted on the projection are multiple tool holders spaced along the length of the base. The tool holders mount cutters for engaging active surfaces of the wedge slot as the broach assembly is passed through the wedge slot. Shims may be interposed between the tool holders and base to increase the elevation of the cutting surfaces relative to the undersurface of the base to progressively increase the bearing pressure of the cutting surfaces against the active surfaces of the slot during multiple passes of the broach assembly through the wedge slot.

公开(公告)号：US06676336B2

公开(公告)日：2004-01-13

申请号：US09986986

申请日：2001-11-13

申请人： John Francis Nolan ,  Ralph Arnold Pollock ,  Todd Joseph Fischer

发明人： John Francis Nolan ,  Ralph Arnold Pollock ,  Todd Joseph Fischer

IPC分类号： B23D3700

CPC分类号： B23P6/002 ,  B23D37/22 ,  B23D43/02 ,  B23D2043/025 ,  Y10T407/16 ,  Y10T407/1628 ,  Y10T407/1685

摘要： The broach assembly includes alternate spacers and cutters arranged in a sub-assembly having a lead at a leading end and a lag at a trailing end. The cutters have side margins in excess of the margins of the spacers for cutting material from the dovetail slots of the turbine wheel as the broach assembly passes through the slots. The bottom or apices of each spacer and cutter are tapered to form a continuously tapered surface along the bottom of the broach assembly. Upon passing the broach assembly through the slot, the assembly is progressively displaced in a radial outward direction to progressively cut the active dovetail slot surfaces. Shims may be disposed in the bottom of the slot to further displace the broach assembly radially outwardly in multiple passes.

摘要翻译： 拉刀组件包括布置在具有在前端的引线和在后端的滞后的子组件中的替代间隔件和切割器。 切割器具有超过间隔物的边缘，用于当拉刀组件通过狭槽时从涡轮机叶轮的燕尾槽切割材料。 每个间隔物和切割器的底部或顶点是锥形的，以沿着拉刀组件的底部形成连续的锥形表面。 当通过该拉刀组件通过狭槽时，该组件在径向向外的方向上逐渐移位，以逐渐切割活动的燕尾槽表面。 垫片可以设置在槽的底部，以进一步使多个通道径向向外移动拉刀组件。