Effect of contact pressure applied on tool surface during cold forging on fatigue life of tool steel

Nuwan Karunathilaka; Naoya Tada; Takeshi Uemori; Ryota Hanamitsu; Masahiro Kawano

doi:10.1016/j.promfg.2018.07.258

Effect of contact pressure applied on tool surface during cold forging on fatigue life of tool steel

Nuwan Karunathilaka, Naoya Tada, Takeshi Uemori, Ryota Hanamitsu, Masahiro Kawano

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

The effect of contact pressure applied on tool surface during cold forging on fatigue life was investigated. Three different contact pressures were applied on heat treated SKH51 specimen surfaces by a forging setup using a universal testing machine. This was followed by tensile test and axial fatigue test for forged and unforged specimens. Dimension, surface hardness and residual stress of the specimen showed a positive relationship with contact pressure while surface roughness did not show a significant difference. The tensile strength and fatigue life showed an increase at lower and medium contact pressures while in high contact pressure both parameters showed a decrease.

Original language	English
Pages (from-to)	488-495
Number of pages	8
Journal	Procedia Manufacturing
Volume	15
DOIs	https://doi.org/10.1016/j.promfg.2018.07.258
Publication status	Published - Jan 1 2018
Event	17th International Conference on Metal Forming, METAL FORMING 2018 - Toyohashi, Japan Duration: Sept 16 2018 → Sept 19 2018

Keywords

Cold forging
Contact pressure
Fatigue life
Residual stress
Tensile strength
Tool steel

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Artificial Intelligence

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10.1016/j.promfg.2018.07.258

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title = "Effect of contact pressure applied on tool surface during cold forging on fatigue life of tool steel",

abstract = "The effect of contact pressure applied on tool surface during cold forging on fatigue life was investigated. Three different contact pressures were applied on heat treated SKH51 specimen surfaces by a forging setup using a universal testing machine. This was followed by tensile test and axial fatigue test for forged and unforged specimens. Dimension, surface hardness and residual stress of the specimen showed a positive relationship with contact pressure while surface roughness did not show a significant difference. The tensile strength and fatigue life showed an increase at lower and medium contact pressures while in high contact pressure both parameters showed a decrease.",

keywords = "Cold forging, Contact pressure, Fatigue life, Residual stress, Tensile strength, Tool steel",

author = "Nuwan Karunathilaka and Naoya Tada and Takeshi Uemori and Ryota Hanamitsu and Masahiro Kawano",

year = "2018",

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doi = "10.1016/j.promfg.2018.07.258",

language = "English",

volume = "15",

pages = "488--495",

journal = "Procedia Manufacturing",

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note = "17th International Conference on Metal Forming, METAL FORMING 2018 ; Conference date: 16-09-2018 Through 19-09-2018",

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TY - JOUR

T1 - Effect of contact pressure applied on tool surface during cold forging on fatigue life of tool steel

AU - Karunathilaka, Nuwan

AU - Tada, Naoya

AU - Uemori, Takeshi

AU - Hanamitsu, Ryota

AU - Kawano, Masahiro

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The effect of contact pressure applied on tool surface during cold forging on fatigue life was investigated. Three different contact pressures were applied on heat treated SKH51 specimen surfaces by a forging setup using a universal testing machine. This was followed by tensile test and axial fatigue test for forged and unforged specimens. Dimension, surface hardness and residual stress of the specimen showed a positive relationship with contact pressure while surface roughness did not show a significant difference. The tensile strength and fatigue life showed an increase at lower and medium contact pressures while in high contact pressure both parameters showed a decrease.

AB - The effect of contact pressure applied on tool surface during cold forging on fatigue life was investigated. Three different contact pressures were applied on heat treated SKH51 specimen surfaces by a forging setup using a universal testing machine. This was followed by tensile test and axial fatigue test for forged and unforged specimens. Dimension, surface hardness and residual stress of the specimen showed a positive relationship with contact pressure while surface roughness did not show a significant difference. The tensile strength and fatigue life showed an increase at lower and medium contact pressures while in high contact pressure both parameters showed a decrease.

KW - Cold forging

KW - Contact pressure

KW - Fatigue life

KW - Residual stress

KW - Tensile strength

KW - Tool steel

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U2 - 10.1016/j.promfg.2018.07.258

DO - 10.1016/j.promfg.2018.07.258

M3 - Conference article

AN - SCOPUS:85063786457

SN - 2351-9789

VL - 15

SP - 488

EP - 495

JO - Procedia Manufacturing

JF - Procedia Manufacturing

T2 - 17th International Conference on Metal Forming, METAL FORMING 2018

Y2 - 16 September 2018 through 19 September 2018

ER -

Effect of contact pressure applied on tool surface during cold forging on fatigue life of tool steel

Abstract

Keywords

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