US 11,867,283 B2
Method of manufacturing a power transmission device
Koki Hayashi, Toyota (JP); and Hiroaki Hatsuyama, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Mar. 31, 2022, as Appl. No. 17/657,488.
Claims priority of application No. 2021-088177 (JP), filed on May 26, 2021.
Prior Publication US 2022/0381335 A1, Dec. 1, 2022
Int. Cl. B23P 15/14 (2006.01); F16H 57/08 (2006.01); C21D 9/32 (2006.01); B23K 1/00 (2006.01)
CPC F16H 57/082 (2013.01) [B23K 1/0008 (2013.01); B23P 15/14 (2013.01); C21D 9/32 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A method of manufacturing a power transmission device, the method comprising:
forging to form a planetary carrier plate:
sintering to form a planetary carrier:
joining the planetary carrier plate to the planetary carrier by brazing the planetary carrier plate to the planetary carrier at support parts arranged in a circumferential direction at a peripheral edge part of the planetary carrier so that the planetary carrier plate is fixed to face the planetary carrier on a side of the planetary carrier where a pinion gear is positioned;
sintering the planetary carrier plate and the planetary carrier after brazing;
forming a pinion shaft hole for mounting a pinion shaft that constitutes the pinion gear in the planetary carrier plate and the planetary carrier;
forming dog teeth integral with the planetary carrier plate; and
performing high-frequency quenching on the dog teeth of the planetary carrier plate.