H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) B21C 25/02 (2006.01) B21J 5/12 (2006.01) B21K 1/30 (2006.01)
Patent
CA 2100232
A forging die and a forging die manufacturing method for extruding helical gears wherein the lead end face of each die tooth is made up of harmonious S-shaped curves with each curve having maximized-radii contours. The shape of the S-shaped curves is formed by dividing the cylindrical surface at the lead end face and the full depth perimeter into an equal number of equally spaced points, connecting these points up into pairs so as to establish the shortest distance between the pairs of points and using these pairs as the end points for the S-shaped curves.
Matrice à forger et méthode de fabrication de la matrice pour extruder des roues à denture hélicoïdale, la face du bout avant de chaque dent de matrice étant faite de courbes harmonieuses en S, chaque courbe ayant des contours à rayon maximisé. On obtient la forme des courbes en S en divisant la surface cylindrique à la face du bout avant et le périmètre sur toute sa profondeur en un nombre égal de points équidistants et en raccordant ces points par paires de façon à établir la plus courte distance entre les points de ces paires et en utilisant les paires comme points d'extrémité pour les courbes en forme de S.
Dodds David H.
Fuhrman William J.
Nagpal Vijay
Ford Motor Company Of Canada Limited
Sim & Mcburney
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