Design of a multi-step warm heading process for subminiature screws

Yeon Hui Jang; Jin Hwan Jeong; Myung Guen Jang; Jae Keun Hong; Jong Bong Kim

doi:10.7736/KSPE.2017.34.2.83

Design of a multi-step warm heading process for subminiature screws

Yeon Hui Jang, Jin Hwan Jeong, Myung Guen Jang, Jae Keun Hong, Jong Bong Kim

Dept. of Mechanical & Automotive Engineering

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

2 Scopus citations

Abstract

A multi-step warm forging process for subminiature screws is investigated. Due to the low formability of Titanium alloys, bit forming of Titanium screws is difficult by cold forging. In order to overcome this low formability of Titanium alloys, two candidate processes, i.e., multi-step forging and warm forging are introduced. First, a multi-step (two-step) forging process is investigated. The punch shape and stroke of forging during the first step is designed via various analyses. Finally, the bit formability is investigated at different forging temperatures. Analyses are carried out for two-step forging at various temperatures and the formability under these thermal conditions is compared.

Original language	English
Pages (from-to)	83-87
Number of pages	5
Journal	Journal of the Korean Society for Precision Engineering
Volume	34
Issue number	2
DOIs	https://doi.org/10.7736/KSPE.2017.34.2.83
State	Published - Feb 2017

Keywords

Finite element analysis
Forging analysis
Subminiature screw
Warm forging

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.7736/KSPE.2017.34.2.83

Cite this

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title = "Design of a multi-step warm heading process for subminiature screws",

abstract = "A multi-step warm forging process for subminiature screws is investigated. Due to the low formability of Titanium alloys, bit forming of Titanium screws is difficult by cold forging. In order to overcome this low formability of Titanium alloys, two candidate processes, i.e., multi-step forging and warm forging are introduced. First, a multi-step (two-step) forging process is investigated. The punch shape and stroke of forging during the first step is designed via various analyses. Finally, the bit formability is investigated at different forging temperatures. Analyses are carried out for two-step forging at various temperatures and the formability under these thermal conditions is compared.",

keywords = "Finite element analysis, Forging analysis, Subminiature screw, Warm forging",

author = "Jang, \{Yeon Hui\} and Jeong, \{Jin Hwan\} and Jang, \{Myung Guen\} and Hong, \{Jae Keun\} and Kim, \{Jong Bong\}",

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AU - Jang, Yeon Hui

AU - Jeong, Jin Hwan

AU - Jang, Myung Guen

AU - Hong, Jae Keun

AU - Kim, Jong Bong

PY - 2017/2

Y1 - 2017/2

N2 - A multi-step warm forging process for subminiature screws is investigated. Due to the low formability of Titanium alloys, bit forming of Titanium screws is difficult by cold forging. In order to overcome this low formability of Titanium alloys, two candidate processes, i.e., multi-step forging and warm forging are introduced. First, a multi-step (two-step) forging process is investigated. The punch shape and stroke of forging during the first step is designed via various analyses. Finally, the bit formability is investigated at different forging temperatures. Analyses are carried out for two-step forging at various temperatures and the formability under these thermal conditions is compared.

AB - A multi-step warm forging process for subminiature screws is investigated. Due to the low formability of Titanium alloys, bit forming of Titanium screws is difficult by cold forging. In order to overcome this low formability of Titanium alloys, two candidate processes, i.e., multi-step forging and warm forging are introduced. First, a multi-step (two-step) forging process is investigated. The punch shape and stroke of forging during the first step is designed via various analyses. Finally, the bit formability is investigated at different forging temperatures. Analyses are carried out for two-step forging at various temperatures and the formability under these thermal conditions is compared.

KW - Finite element analysis

KW - Forging analysis

KW - Subminiature screw

KW - Warm forging

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Design of a multi-step warm heading process for subminiature screws

Abstract

Keywords

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