公开(公告)号：WO2014191841A3

公开(公告)日：2015-05-14

申请号：PCT/IB2014001880

申请日：2014-05-21

Applicant: EATON CAPITAL

Inventor： CHAVDAR BULENT ,  KILLIAN MICHAEL ,  NSHIMIYE ERIC ,  STOLTZ THOMAS

IPC: B23P15/14 ,  B21J1/02 ,  B21J5/02 ,  B21K1/30

CPC classification number: B21K1/30 ,  B21J1/02 ,  B21J5/025 ,  B23P15/14 ,  Y10T29/49474 ,  Y10T29/4948

Abstract: A method for manufacturing a gear includes forming a bi- material billet from a steel cylinder (13) having a cylindrical wall, a first end closed with a first steel cap, and an open second end distal to the first end. The method includes disposing a core material (30) other than steel into the steel cylinder (13), welding a second steel cap onto the steel cylinder to form the bi-material billet, and heating the cylindrical wall. The method includes a first forging blow on the heated billet or on a disk-shaped rough forging forged from the heated billet with a first closed blocker die to produce a partial toothed preform, and a second forging blow on the preform with a second closed blocker die to produce a netshape gear. The first closed blocker die has a die cavity including gear tooth forms, and the partial toothed preform includes a plurality of spaced gear teeth.

Abstract translation: 一种制造齿轮的方法包括从具有圆柱形壁的钢制圆柱体（13）形成双材料坯料，第一端部用第一钢盖封闭，第二端部远离第一端部。 该方法包括将不同于钢的芯材（30）设置到钢瓶（13）中，将第二钢帽焊接到钢瓶上以形成双材料坯料，并加热圆筒壁。 该方法包括在被加热的坯料上或在加热的坯料上用第一封闭的封闭模具锻造的圆盘形粗锻件进行第一锻造，以产生部分齿形预成型件，以及用第二闭合阻塞件在预制件上进行第二锻造 死去生产一个网状齿轮。 第一闭合阻塞模具具有包括齿轮齿形的模腔，并且部分齿形预制件包括多个间隔开的齿轮齿。