Experimental Process Design for Reclamation of Geared Components

authored by: P. Kuwert, T. Petersen, K. Brunotte, B. A. Behrens
Abstract: From a metal forming perspective, warm forming technologies can be used to reclaim the shape and functionality of worn engineering steel parts such as case-hardened geared components. Since forming temperatures are beneath the material-transformation temperature, no loss in hardness is expected and a new heat treatment can be omitted. In order to determine a process window for reclaiming geared components, upsetting tests were carried out on case-hardened workpieces made of AISI 5115. The workpieces were heated to between 700 °C and 900 °C by induction or furnace heating and upset to a true strain between 0.1 and 0.4. The upset workpieces were cooled in two media, air and water, and metallographically investigated. The combination of 900 °C furnace heating, upsetting (φ_h = 0.4) and quenching led to an increase of 60% in case-hardening depth. This procedure can be used for reclaiming geared components by means of forming technology.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Contribution to book/anthology
Pages: 125-133
No. of pages: 9
Publication date: 2021
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Industrial and Manufacturing Engineering, Economics, Econometrics and Finance (miscellaneous), Safety, Risk, Reliability and Quality
Electronic version(s): https://doi.org/10.1007/978-3-662-62138-7_13 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inbook{c673331aecc44220b31d9e342058b40f,
title = "Experimental Process Design for Reclamation of Geared Components",
abstract = "From a metal forming perspective, warm forming technologies can be used to reclaim the shape and functionality of worn engineering steel parts such as case-hardened geared components. Since forming temperatures are beneath the material-transformation temperature, no loss in hardness is expected and a new heat treatment can be omitted. In order to determine a process window for reclaiming geared components, upsetting tests were carried out on case-hardened workpieces made of AISI 5115. The workpieces were heated to between 700 °C and 900 °C by induction or furnace heating and upset to a true strain between 0.1 and 0.4. The upset workpieces were cooled in two media, air and water, and metallographically investigated. The combination of 900 °C furnace heating, upsetting (φh = 0.4) and quenching led to an increase of 60% in case-hardening depth. This procedure can be used for reclaiming geared components by means of forming technology.",
keywords = "Bulk metal forming, CO-reduction, Product recycling",
author = "P. Kuwert and T. Petersen and K. Brunotte and Behrens, {B. A.}",
note = "Funding Information: “Determination of the process limits for the re-manufacturing of damaged gears by using precision post-forming at elevated temperatures” which is financed by the German Research Foundation (DFG) under the project number 319564414. The authors would like to thank the German Research Foundation.; 10th Congress of the German Academic Association for Production Technology (WGP) ; Conference date: 23-09-2020 Through 24-09-2020",
year = "2021",
doi = "10.1007/978-3-662-62138-7_13",
language = "English",
series = "Lecture Notes in Production Engineering",
publisher = "Springer Nature",
pages = "125--133",
booktitle = "Lecture Notes in Production Engineering",
address = "United States",
}