A majority of high-strength constructional elements of titanium alloys are manufactured by hot plastic working methods, chiefly by open die forging or die forging. Most often, β α + two-phase titanium alloys are used, which are characterized by high relative strength, good hightemperature creep resistance (up to 450°C), high fatigue strength under corrosive conditions, corrosion resistance in m...

Acknowledgments We would first like to acknowledge everyone who helped us complete our senior project. Professor Blair London, our senior project advisor, for giving us guidance throughout the year. Kyle Logan for meeting with us weekly to assist in our progress and guide us through problems and Mark Timko for offering advice with certain obstacles, both who were our sponsors from Weber Metals....

The paper concerns selected aspects of the application cooling–lubricating agents as well methods and devices assigned to lubrication in hot die forging processes realized at elevated high temperatures context their effect on quality forgings durability instrumentation. An analysis was made currently used lubricants properties applications industrial processes, a review conducted presently appl...

This paper describes the possibilities and conditions of the closed-die flashless forging process using conventional mechanical presses and equipment. The technique of driven gear forging with an internal flash or with special die design has been developed. The quality of forgings is comparable to that achievable on Hatebur presses. Furthermore the problem of how to increase shift production un...

A variety of cast pyrometR 718 alloy microstructures result from processing of different diameters of industrial scale ingots for producing superalloy forgings used in aircraft turbine engine applications. The hot workability of these cast alloys will significantly depend on the cast microstructure. The current study is focussed on understanding the evolution of the cast microstructure during V...

In this paper we examine a mathematical model of solidification the melt in two-phase zone during formation forgings through liquid stamping. From simultaneous solution Fourier equations thermal conductivity for melt, zone, and solid crust, kinetics has been established effect external pressure on temperature fields components time hollow thin-walled thoroughly assessed.

Abstract The study constitutes an analysis of the durability dies used in first operation producing valve forgings from chromium–nickel steel (NCF 3015) for motor trucks. average (subjected to standard thermal treatment and nitriding) this equals about 800 forgings. To perform in-depth effect nitrided layer thickness (0.1 mm 0.2 mm) tool material (W360 QRO90) on possibilities increasing die dur...