公开(公告)号：KR1020110054426A

公开(公告)日：2011-05-25

申请号：KR1020090111058

申请日：2009-11-17

Applicant: 현대자동차주식회사 ,  대한소결금속 주식회사

Inventor： 우선주 ,  하창경 ,  김기정 ,  임종대 ,  김광수 ,  안승균 ,  구원석 ,  박종관

IPC: B22F5/08 ,  B21H5/00 ,  B22F3/12 ,  B22F3/24

CPC classification number: B22F5/08 ,  B21H5/00 ,  B22F3/12 ,  B22F3/24 ,  B22F2998/10 ,  B22F2999/00

Abstract: PURPOSE: A method of manufacturing sintered gear for transmission, which can reduce manufacturing costs by minimizing post processes is provided to increase the density of the sintered gear and to improve strength. CONSTITUTION: A method of manufacturing sintered gear for transmission comprises the next step. Carbon(C) 0.2 ~ 0.3 wt% is mixed in alloyed powder consisting of chrome(Cr) 1.3 ~ 1.7 wt%, molybdenum(Mo) 0.15 ~ 0.30 wt% and remainder iron(Fe). The pressure is added in the mixed powder and tooth form is given to the mixed powder. The molded materials are sintered in 1200 ~ 1300°C. The sintered materials(1) are rolled between two rolling dies(3,5) in room temperature. The rolled materials are heat-treated.

Abstract translation: 目的：提供一种制造用于变速器的烧结齿轮的方法，其可以通过最小化后加工来降低制造成本，以增加烧结齿轮的密度并提高强度。 构成：制造用于传输的烧结齿轮的方法包括下一步骤。 碳（C）0.2〜0.3重量％在由铬（Cr）1.3〜1.7重量％，钼（Mo）0.15〜0.30重量％，余量为铁（Fe）组成的合金粉末中混合。 在混合粉末中加入压力，将混合粉末赋予牙齿形状。 成型材料在1200〜1300℃下烧结。 烧结材料（1）在室温下在两个轧制模具（3,5）之间轧制。 轧制材料进行热处理。