Formability of austenitic stainless steels under warm hydroforming conditions

Eren Billur, Sasawat Mahabunphachai, Muammer Koç

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Use of stainless steel has been increasing in HVAC., sanitary and medical devices, as well as several structural and transportation applications, due to their high strength-to-weight ratio, corrosion resistance and aesthetic appearance. Austenitic stainless steels are the most common type used in the metal industry. Due to the limitations of forming these alloys into complex shapes at room temperature conditions, forming at elevated temperature has been considered as an enabling technique. Formability of these stainless steels is affected by strain rate and temperature due to martensitic transformation of meta-stable austenite microstructure. In this study, deformation characteristics of three common austenitic stainless steels (AISI 201, 301, and 304) were investigated using hydraulic bulge testing at cold and warm conditions. Material behavior of these alloys was determined based on continuous pressure and dome height measurements using several calculation approaches. These curves were then incorporated into finite element models (FEA) to be compared and validated with additional closed-die warm hydroforming experiments. Results suggest that material model and FEA results are in good agreement with experimental findings, and hence, they can be used for further predictions of complex and different parts with confidence.

Original languageEnglish
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME - 37th Annual North American Manufacturing Research Conference, NAMRC 37
Pages341-348
Number of pages8
Publication statusPublished - 23 Nov 2009
Externally publishedYes
Event37th Annual North American Manufacturing Research Conference, NAMRC 37 - Greenville, SC, United States
Duration: 19 May 200922 May 2009

Publication series

NameTransactions of the North American Manufacturing Research Institution of SME
Volume37
ISSN (Print)1047-3025

Other

Other37th Annual North American Manufacturing Research Conference, NAMRC 37
CountryUnited States
CityGreenville, SC
Period19/5/0922/5/09

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Keywords

  • Finite element analysis
  • Formability
  • Hydraulic bulge test
  • Stainless steels
  • Warm hydroforming

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Billur, E., Mahabunphachai, S., & Koç, M. (2009). Formability of austenitic stainless steels under warm hydroforming conditions. In Transactions of the North American Manufacturing Research Institution of SME - 37th Annual North American Manufacturing Research Conference, NAMRC 37 (pp. 341-348). (Transactions of the North American Manufacturing Research Institution of SME; Vol. 37).