公开(公告)号：US4700446A

公开(公告)日：1987-10-20

申请号：US857744

申请日：1986-03-20

申请人： Anton Schmid ,  Georg Tauschek ,  Andreas Sedlmeier ,  Peter Pollok

发明人： Anton Schmid ,  Georg Tauschek ,  Andreas Sedlmeier ,  Peter Pollok

IPC分类号： F16H3/12 ,  B21J5/12 ,  B21K1/30 ,  F16D23/06

CPC分类号： B21J5/12 ,  B21K1/30 ,  Y10T29/49474

摘要： A process for the manufacture of a synchronizing component, provided with ahort toothing having undercut teeth, for a shift transmission by precision forging, in which the teeth, the radially inner side of which lies against a common cylindrical surface and the base of which is placed on a common lower plane surface, being first manufactured with parallel tooth flanks and then subjected to final clenching, permits especially precise formation of the coupling surfaces, the following process steps being essential:(a) by means of preliminary forging a semi-finished product is produced the short toothing of which has teeth (7) having excess dimensions exceeding the finished tooth head (10),(b) by means of one or more subsequent calibrating strokes the cold semi-finished product is acted upon in such a manner that(aa) firstly the tooth head (10) are subjected to preliminary clenching, the radially outer sides of the teeth being supported on the forging-die side,(bb) simultaneously with the preliminary clenching operation, or by means of a further calibrating stroke, by rounding out the tooth flanks (9) to the lower plane surface (5), cold compacting is produced in each case in the base region of the teeth (7),(cc) during the final clenching operation the tooth heads acquire a roof-shape and the tooth flanks acquire an obliquity corresponding to their undercuts.

摘要翻译： PCT No.PCT / EP85 / 00335 Sec。 371日期1986年3月20日 102（e）1986年3月20日PCT PCT。1985年7月8日PCT公布。 公开号WO86 / 00838 日期1986年2月13日。一种制造同步部件的方法，该同步部件设置有具有底切齿的短齿，用于通过精密锻造的换档传动装置，其中，其径向内侧抵靠公共圆柱 表面，其基部放置在共同的下平面表面上，首先制造具有平行的齿面，然后进行最后的紧固，允许特别精确地形成联接表面，以下工艺步骤至关重要：（a） 生产初步锻造半成品的短齿具有超过成品齿头（10）的超过尺寸的齿（7），（b）通过一个或多个随后的校准冲程，冷半成品 （aa）首先使齿头（10）经受预先紧固，齿的径向外侧被支撑在锻造模侧，（bb） 通过将齿面（9）四舍五入到下平面（5），同时进行初步紧固操作，或通过进一步的校准行程，在每个情况下，在齿（7）的基部区域中产生冷压实 ），（cc）在最后紧固操作期间，齿头获得屋顶形状，并且齿面获得对应于其底切的倾斜度。