Protective coatings for ceramic superplastic forming dies: an initial study on protective coating performance

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Abstract

Superplastic forming (SPF) is an advanced manufacturing process, typically restricted to low volume and high value products, where metallic sheets are heated at the superplastic temperature and blow formed into a metallic die. Refractory ceramics are a low cost option to substitute the high temperature resistant steels and other alloys conventionally used in SPF dies, but their brittle nature is a limiting factor for most SPF applications. Suitable surface coatings have shown a significant effect on wear resistance and can be employed to improve the ceramic performance in terms of tool life. This paper is focused on an initial study on protective coatings for SPF ceramic dies to evaluate their effectiveness for SPF forming. The tests were conducted using a dedicated test rig built at the Advanced Forming Research Centre (AFRC) at the University of Strathclyde, and where the die-blank interaction under SPF conditions was replicated at laboratory scale.
LanguageEnglish
Pages1009-1016
Number of pages8
JournalMaterialwissenschaft und Werkstofftechnik
Volume48
Issue number10
Early online date19 Oct 2017
DOIs
Publication statusE-pub ahead of print - 19 Oct 2017

Fingerprint

superplastic forming
protective coatings
Protective coatings
ceramics
Ceramic dies
blanks
refractories
wear resistance
Steel
manufacturing
steels
Refractory materials
substitutes
Wear resistance
coatings
products
Coatings
Temperature

Keywords

  • superplastic forming
  • wear
  • ceramic die
  • protective coating
  • Ti-6Al-4V

Cite this

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title = "Protective coatings for ceramic superplastic forming dies: an initial study on protective coating performance",
abstract = "Superplastic forming (SPF) is an advanced manufacturing process, typically restricted to low volume and high value products, where metallic sheets are heated at the superplastic temperature and blow formed into a metallic die. Refractory ceramics are a low cost option to substitute the high temperature resistant steels and other alloys conventionally used in SPF dies, but their brittle nature is a limiting factor for most SPF applications. Suitable surface coatings have shown a significant effect on wear resistance and can be employed to improve the ceramic performance in terms of tool life. This paper is focused on an initial study on protective coatings for SPF ceramic dies to evaluate their effectiveness for SPF forming. The tests were conducted using a dedicated test rig built at the Advanced Forming Research Centre (AFRC) at the University of Strathclyde, and where the die-blank interaction under SPF conditions was replicated at laboratory scale.",
keywords = "superplastic forming, wear, ceramic die, protective coating, Ti-6Al-4V",
author = "A. Staiano and W. Ion and L. O'Hare and N. Zuelli",
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AU - Staiano, A.

AU - Ion, W.

AU - O'Hare, L.

AU - Zuelli, N.

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AB - Superplastic forming (SPF) is an advanced manufacturing process, typically restricted to low volume and high value products, where metallic sheets are heated at the superplastic temperature and blow formed into a metallic die. Refractory ceramics are a low cost option to substitute the high temperature resistant steels and other alloys conventionally used in SPF dies, but their brittle nature is a limiting factor for most SPF applications. Suitable surface coatings have shown a significant effect on wear resistance and can be employed to improve the ceramic performance in terms of tool life. This paper is focused on an initial study on protective coatings for SPF ceramic dies to evaluate their effectiveness for SPF forming. The tests were conducted using a dedicated test rig built at the Advanced Forming Research Centre (AFRC) at the University of Strathclyde, and where the die-blank interaction under SPF conditions was replicated at laboratory scale.

KW - superplastic forming

KW - wear

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KW - Ti-6Al-4V

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