Due to their low cost and lightweight properties, multi-cell square tubes have been widely
used in impact protection as energy absorbers. In this study, two kinds of multi-cell square …

Forward and backward extrusion are used extensively in the forging industry, and combined
forward and backward extrusion occurs during the forging of complex parts. To determine …

The friction factor is a key input for “barrel compression test” and for a meaningful
interpretation of the test data. Despite its widespread use, due to the complexity of the …

A multi-scale simulation of the tip test, developed to determine the tribological characteristics
of the back-extrusion process, was conducted on an AA 3003 alloy. A microstructure-level …

Reducing crude oil reserves and also environmental pollution caused by its excessive use
has led to numerous researches to find alternatives to petroleum-based oils. Thus, owing to …

In cold bulk forming processes, a constant shear friction model is widely used to apply
friction. However, it is not easy to predict the shear friction factor since frictional behavior is …

Abstract based on the experimental research findings, the systematization of wear
mechanisms of working elements of shearing dies when machining various materials …

John Schey asked me to work with him on this book in 2000. As the book is a recognized
essential resource for researchers in the fields of manufacturing tribology and metal forming …

Efficiency of coin manufacturing is often limited by the service life of the stam** dies,
whose degradation by wear results in decreasing the quality of the produced coin …

The ring compression test, a quantitative method to evaluate various conditions of friction at
the interface of the dies and work piece by the analysis of diametric (inner) change in the …