公开(公告)号：US20100299925A1

公开(公告)日：2010-12-02

申请号：US12787849

申请日：2010-05-26

Applicant: Chih-Hao LIN ,  Tseng-Jen Cheng ,  Yu-Ting Lin

Inventor： Chih-Hao LIN ,  Tseng-Jen Cheng ,  Yu-Ting Lin

IPC: B23P15/14 ,  F16H55/17

CPC classification number: B23P15/14 ,  B21C23/205 ,  B21K1/30 ,  F16H55/17 ,  Y10T29/49474 ,  Y10T74/1987

Abstract: A method for forming a gear, including the following steps: first obtaining a billet, then carrying out a backward extrusion process of the billet to form a forged billet with a blind hole by using a mold, and the forged billet has an appropriate axial length and an appropriate radial length. Then, a precise piercing process is carried out to remove the solid billet portion remained in the blind hole of the forged billet to form a through hole. Then, trimming of the through hole is carried out to form a high-precision inner hole, and positioning is carried out based on the high-precision inner hole to implement a pressing process of an outer tooth shape of the forged billet to form the gear.

Abstract translation: 一种用于形成齿轮的方法，包括以下步骤：首先获得坯料，然后通过使用模具进行坯料的向后挤压工艺以形成具有盲孔的锻造坯料，并且锻造坯料具有适当的轴向长度 和适当的径向长度。 然后，进行精确的穿孔处理，以除去残留在锻造坯料的盲孔中的固体坯料部分以形成通孔。 然后，进行通孔的修整以形成高精度的内孔，并且基于高精度内孔进行定位，以实现锻造坯料的外齿形状的冲压加工，以形成齿轮 。