Cold rotary forging of Inconel 718

Paranjayee Mandal; Himanshu Lalvani; Martin  Tuffs

doi:10.1016/j.jmapro.2019.08.015

Cold rotary forging of Inconel 718

Paranjayee Mandal^*, Himanshu Lalvani, Martin Tuffs

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

41 Downloads (Pure)

Abstract

The present work includes an in-depth study of microstructure and mechanical property development in a cold rotary forged component manufactured from Inconel 718 alloy. This work is pioneering in that there is no detailed study available in the literature focussing on cold rotary forging of Inconel 718. A tubular preform of 6 mm wall thickness was cold rotary forged into a 90 degree flange part followed by annealing with double aging. The present study provides a thorough analysis of microstructure, hardness and surface roughness evolution from as-received to final cold rotary forged and heat-treated condition including crystallographic texture changes occurring at different stages. The solution-annealed condition of the preform was found to be most suitable for cold rotary forging of Inconel 718. An annealing treatment followed by double-aging imparted desired properties such as homogeneous microstructure, uniform hardness distribution and improved surface roughness into the cold rotary forged Inconel 718 flange. The cold rotary forging can be a cost-effective route for manufacture of axisymmetric components with high material yield and low buy-to-fly ratio for expensive materials such as Inconel 718.

Original language	English
Pages (from-to)	77-99
Number of pages	13
Journal	Journal of Manufacturing Processes
Volume	46
Early online date	31 Aug 2019
DOIs	https://doi.org/10.1016/j.jmapro.2019.08.015
Publication status	Published - 1 Oct 2019

Funding

The authors would like to acknowledge Rolls Royce Plc for funding this work from their Innovate UK: Aerospace Technology Institute - Strategic R&D Project grant (application no. 66733-263147) titled “Manufacturing Portfolio Project 2: Manufacture of Advanced Materials”. This work in particular was sub-contracted from Rolls Royce Plc to Advanced Forming Research Centre (AFRC) from the I-UK grant under ETC-00942. The authors would also like to acknowledge the help of Mr. Kyle Watt, Manufacturing engineer at the AFRC, for providing useful information on the cold rotary forging operation.

Keywords

cold rotary forging
Inconel 718
microstructure
texture evolution
surface roughness

Access to Document

10.1016/j.jmapro.2019.08.015

Mandal-etal-JMP-2019-Cold-rotary-forging-of-Inconel-718Accepted author manuscript, 6.9 MBLicence: CC BY-NC-ND 4.0

Cite this

@article{a70910b936ec4e3ebaf39e84bfc0fd6c,

title = "Cold rotary forging of Inconel 718",

abstract = "The present work includes an in-depth study of microstructure and mechanical property development in a cold rotary forged component manufactured from Inconel 718 alloy. This work is pioneering in that there is no detailed study available in the literature focussing on cold rotary forging of Inconel 718. A tubular preform of 6 mm wall thickness was cold rotary forged into a 90 degree flange part followed by annealing with double aging. The present study provides a thorough analysis of microstructure, hardness and surface roughness evolution from as-received to final cold rotary forged and heat-treated condition including crystallographic texture changes occurring at different stages. The solution-annealed condition of the preform was found to be most suitable for cold rotary forging of Inconel 718. An annealing treatment followed by double-aging imparted desired properties such as homogeneous microstructure, uniform hardness distribution and improved surface roughness into the cold rotary forged Inconel 718 flange. The cold rotary forging can be a cost-effective route for manufacture of axisymmetric components with high material yield and low buy-to-fly ratio for expensive materials such as Inconel 718.",

keywords = "cold rotary forging, Inconel 718, microstructure, texture evolution, surface roughness",

author = "Paranjayee Mandal and Himanshu Lalvani and Martin Tuffs",

year = "2019",

month = oct,

day = "1",

doi = "10.1016/j.jmapro.2019.08.015",

language = "English",

volume = "46",

pages = "77--99",

journal = "Journal of Manufacturing Processes",

issn = "1526-6125",

}

TY - JOUR

T1 - Cold rotary forging of Inconel 718

AU - Mandal, Paranjayee

AU - Lalvani, Himanshu

AU - Tuffs, Martin

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The present work includes an in-depth study of microstructure and mechanical property development in a cold rotary forged component manufactured from Inconel 718 alloy. This work is pioneering in that there is no detailed study available in the literature focussing on cold rotary forging of Inconel 718. A tubular preform of 6 mm wall thickness was cold rotary forged into a 90 degree flange part followed by annealing with double aging. The present study provides a thorough analysis of microstructure, hardness and surface roughness evolution from as-received to final cold rotary forged and heat-treated condition including crystallographic texture changes occurring at different stages. The solution-annealed condition of the preform was found to be most suitable for cold rotary forging of Inconel 718. An annealing treatment followed by double-aging imparted desired properties such as homogeneous microstructure, uniform hardness distribution and improved surface roughness into the cold rotary forged Inconel 718 flange. The cold rotary forging can be a cost-effective route for manufacture of axisymmetric components with high material yield and low buy-to-fly ratio for expensive materials such as Inconel 718.

AB - The present work includes an in-depth study of microstructure and mechanical property development in a cold rotary forged component manufactured from Inconel 718 alloy. This work is pioneering in that there is no detailed study available in the literature focussing on cold rotary forging of Inconel 718. A tubular preform of 6 mm wall thickness was cold rotary forged into a 90 degree flange part followed by annealing with double aging. The present study provides a thorough analysis of microstructure, hardness and surface roughness evolution from as-received to final cold rotary forged and heat-treated condition including crystallographic texture changes occurring at different stages. The solution-annealed condition of the preform was found to be most suitable for cold rotary forging of Inconel 718. An annealing treatment followed by double-aging imparted desired properties such as homogeneous microstructure, uniform hardness distribution and improved surface roughness into the cold rotary forged Inconel 718 flange. The cold rotary forging can be a cost-effective route for manufacture of axisymmetric components with high material yield and low buy-to-fly ratio for expensive materials such as Inconel 718.

KW - cold rotary forging

KW - Inconel 718

KW - microstructure

KW - texture evolution

KW - surface roughness

UR - https://www.sciencedirect.com/journal/journal-of-manufacturing-processes

U2 - 10.1016/j.jmapro.2019.08.015

DO - 10.1016/j.jmapro.2019.08.015

M3 - Article

AN - SCOPUS:85071557085

SN - 1526-6125

VL - 46

SP - 77

EP - 99

JO - Journal of Manufacturing Processes

JF - Journal of Manufacturing Processes

ER -

Cold rotary forging of Inconel 718

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this