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1 – 3 of 3Faruq Al‐Omari, Mohammad Al‐Jarrah, Mohammad Omari and Mohammed Hayajneh
The purpose of this paper is to study the effect of the height and diameter of the dies as well as work‐piece dimensions, on stresses and strains on dies in the forging process…
Abstract
Purpose
The purpose of this paper is to study the effect of the height and diameter of the dies as well as work‐piece dimensions, on stresses and strains on dies in the forging process. This helps in developing a better understanding of the effect of process parameters. As a result, the manufacturing task could be accomplished with minimal number of trials.
Design/methodology/approach
After determining the most influencing parameters on the forging process, the mechanical part is drawn, size of initial billet and shape of punch and die are also determined to build a finite‐element model to represent the process. Several outputs are taken as an indication for die wear and process performance. Finally, a computer numerical control (CNC) code to manufacture the selected die is generated.
Findings
It was found that when the die diameter increases, the effective stress decreases. On other hand, it was found that the work required to finish the forging process is highly affected by the dimensions of work‐piece. Therefore, it is possible to save power if work‐piece dimensions are adjusted.
Originality/value
This paper was meant to be a universal step or guide in developing a computer aided design/computer aided manufacturing (CAD/CAM) system to design, simulate, and manufacture molds for the forging process using a statistical method.
Details
Keywords
Faruq A. Al‐Omari, Osama D. Al‐Khaleel, Ghassan A. Rayyashi and Sameh H. Ghwanmeh
The purpose of this paper is to develop an innovative information hiding algorithm.
Abstract
Purpose
The purpose of this paper is to develop an innovative information hiding algorithm.
Design/methodology/approach
The proposed algorithm is based on image histogram statistics. Cumulative‐peak histogram regions are utilized to hide multiple bits of the secret message by performing histogram bin substitution. The embedding capacity, otherwise known as payload, and peak signal to noise ratio (PSNR), as well as security, are the main metrics used to evaluate the performance of the proposed algorithm.
Findings
According to the obtained results, the proposed algorithm shows high embedding capacity and security at comparable PSNR compared with existing hiding information techniques.
Originality/value
The simplicity, security, random distribution of embedding pixels, and on‐demand high capacity are the key advantages of the proposed approach.
Details
Keywords
Faruq A. Al‐Omari, Osama D. Al‐Khaleel, Ghassan A. Rayyashi and Sameh H. Ghwanmeh
The purpose of this paper is to develop an innovative information hiding algorithm.
Abstract
Purpose
The purpose of this paper is to develop an innovative information hiding algorithm.
Design/methodology/approach
The proposed algorithm is based on image histogram statistics. Cumulative‐peak histogram regions are utilized to hide multiple bits of the secret message by performing histogram bin substitution. The embedding capacity, otherwise known as payload, and peak signal to noise ratio (PSNR), as well as security, are the main metrics used to evaluate the performance of the proposed algorithm.
Findings
According to the obtained results, the proposed algorithm shows high embedding capacity and security at comparable PSNR compared with existing hiding information techniques.
Originality/value
The simplicity, security, random distribution of embedding pixels, and on‐demand high capacity are the key advantages of the proposed approach.
Details