In this article, a mathematical model of the wire’s average temperature change in process multiple drawing on high-speed straight-line machines has been developed. The calculation results showed that wire during at speed up to 45 m/s could reach 400 °C. Deformation heating does not exceed 60 °C, and due sliding friction can 300 depending coefficient, which ranges from 0.05 0.15. strain rates un...

In ultrasonic tube hydroforming, the tube is hydro formed while the ultrasonic vibration is applied to the die. Prior studies provide experimental proof that ultrasonic tube hydroforming reduces corner radius, improves lubrication and uniform thickness. Use of ultrasonic vibration can decrease friction at the tube-die interface. Few attempts have been made to analyze the wire drawing while the ...

Abstract Due to its electro-mechanical properties, commercially pure aluminium wires have attracted the interest of automotive industry representing a functional and efficient economic solution reduce vehicle’s weight leading diminishing energy consumption emissions in today’s society. However, consolidate use this sector new market realities, it is necessary increase flexibility conductor wire...

Redundant manipulators have potential advantages of using their degree(s) of redundancy to satisfy additional task(s). To achieve desirable performance criteria, various optimization techniques can be applied to redundant manipulators. In the work presented, the redundancy resolution of planar wire-actuated parallel manipulators is investigated at the kinematic and dynamic levels in order to pe...

The project was conducted in a high quality steel wire manufacturing company with the production capacity of over 120,000 tones/annum. The wire drawn from the high speed wire drawing (KOCH) machine is fed as the raw material for BEKEART (zinc coating galvanization) furnace. The problem faced by the company is the variability in the amount of input to the furnace, which results from the breakdow...

This research examines use of the wireframe model for showing three dimensional subsurface structure. Three questions were posed: First, how can subsurface structure be portrayed using a graphics technique dominated by open space? Second, what engineering graphics techniques can be used to show quantitative information? Third, how can the wireframe model be incorporated into existing coursework...

The research presented here examines topological drawing, a new mode of constructing and interacting with mathematical objects in three-dimensional space. In topological drawing, issues such as adjacency and connectedness, which are topological in nature, take precedence over purely geometric issues. Because the domain of application is mathematics, topological drawing is also concerned with th...

Layout strategies that strive to preserve perspective from earlier drawings are called incremental. In this paper we study the incremental arc crossing minimization problem for bipartite graphs. We develop a greedy randomized adaptive search procedure (GRASP) for this problem. We have also developed a branch-andbound algorithm in order to compute the relative gap to the optimal solution of the ...