Semi-solid processing (SSP) is a popular near-net-shape forming technology for metals, while its application is still limited in titanium alloy mainly due to its low formability. Recent works showed that SSP could effectively enhance the formability and mechanical properties of titanium alloys. The processing parameters such as temperature and forging rate/ratio, are directly correlated with th...

Nondestructive evaluation is used widely in many engineering and industrial areas to detect defects or flaws such as cracks inside parts or structures during manufacturing or for products that need to be inspected while in service. The commonly-used standard statistical model for such data is a simple empirical linear regression between the (possibly transformed) signal response variables and t...

Abstract This paper relates to a study on the formation of elongated preforms in CNC skew rolling mill. First, numerical analysis was performed investigate forming processes for three different parts: scraper, connecting rod, and hook. The shapes dimensions were designed, closed-died forging producing these parts simulated numerically. Distributions temperature, effective strain damage function...

The study reports that the combined use of in situ interlayer hot forging and post-deposition heat treatment (PDHT) could alter typical coarse oriented microstructure Ni-based superalloy 625 obtained by arc plasma directed energy deposition (DED) to a fine non-oriented condition. In synchrotron X-ray diffraction electron backscatter showed high-temperature (1100 °C/ 1 h) PDHT induced significan...

This paper presents a comparative study of Continuous Stirred Tank Reactor concentration control using Particle Swam Optimization and Bacterial Forging Optimization. Continuous stirred tank reactor plays a very important role in process industry. This paper presents the optimal design of PID controller based on Particle Swarm Optimization and Bacterial Forging Optimization. The first step is th...

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...

This short report summarises the proceedings of the international symposium "Precincts, people and places - forging new partnerships", held in Brisbane on 24 and 25 July 2009.

Labour economics is often taken by vivid discussions about the specificity of the labour market and the need to develop a different approach, away from the current standard microeconomics. What is often forgotten is that this was not always the case. Labour research in the interwar years was quite different from what we regard presently as labour economics, being much more broadly and loosely d...

This paper describes new conditions on parameters selection that lead to an efficient algorithm for forging ElGamal digital signature. Our work is inspired by Bleichenbacher’s ideas.

Oxygen content in aluminium alloys Al-3Fe or Al-8Fe-lZr (wt%) maked from air atomized powders by a sinter-forging