Journal ArticleDOI
Deformation Characteristics and Ductile Fracture of 1040 Steel in Simple Upsetting of Solid Cylinders and Rings
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This article is published in Journal of Engineering for Industry.The article was published on 1970-05-01. It has received 80 citations till now. The article focuses on the topics: Formability & Deformation (engineering).read more
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Journal ArticleDOI
Fracture in cold upset forging -a criterion and model
P. W. Lee,H. A. Kuhn +1 more
TL;DR: In this paper, a mathematical model of localized necking and fracture is presented that permits evaluation of the effects of material characteristics and process parameters, and a fracture criterion involving total strains at failure is also proposed.
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Characterization of fracture loci in metal forming
TL;DR: In this article, the authors identify the circumstances under which each mode will occur in terms of plastic flow and microstructural ductile damage by means of an analytical framework to characterize fracture loci under plane stress conditions that also takes anisotropy into consideration.
Journal ArticleDOI
Frictional effect of ultrasonic-vibration on upsetting.
TL;DR: Results of the hot extrapolated compression test and the hot ring compression test reveal that increasing temperature by ultrasonic-vibration may reduce the flow stress and increase the interfacial friction.
Journal ArticleDOI
Study on ring compression test using physical modelling and FE simulation
TL;DR: In this article, a series of ring compression tests were carried out to obtain friction coefficients for a number of lubricants including vaseline, zinc stearate and talcum powder.
Journal ArticleDOI
A review of ring-compression testing and applicability of the calibration curves
TL;DR: A review of the calibration curves developed by various researchers, and discusses their usefulness and limitations for quantitative evaluation of friction and flow stress is presented in this paper, where the experimental data obtained for some aluminium alloys is used for comparing the validity of calibration curves.