Failure analysis of overdrive gear of passenger car gearbox fabricated from powder metallurgy

2022-08-29 Hits:

Affiliation of Author(s):University of Electronic Science and Technology of China

Place of Publication:Engineering Failure Analysis

Key Words:Passenger car; Failure analysis; Overdrive gear; Mechanical properties; Powder metallurgy

Abstract:In this paper, investigations into the premature failure of gearbox overdrive gears were done in three passenger car models. The premature failure occurred when a replaced gear model was used instead of the original gear. A series of experiments were carried out on gears made by two manufacturers, including failed gear after an average operation of 100,000 km and gear with partial failure but usable with an average operation of 200,000 km. Numerical and experimental results showed that sharp hardness slope (reduction of 300 HV in 0.15 mm), high porosity, and Hertz stress distribution of ...

All the Authors:Shahab Kamel Abbasnia,Jafar Langari

Indexed by:Journal Paper

Correspondence Author:Reza Masoudi Nejad,Karim Aliakbari

Document Code:106683

Discipline:Engineering

First-Level Discipline:Mechanical engineering

Volume:141

Page Number:106683

ISSN No.:1350-6307

Translation or Not:no

Date of Publication:2022-08-12

Date of Publication:2022-08-12