As many researches focused on application of non-destructive testing, very less concerned on the ... more As many researches focused on application of non-destructive testing, very less concerned on the critically to reduce the inspection time rely on decrease cost operation. Liquid penetration testing has been broadly used for over 30 years in creation industrial operation. The need for reducing time in liquid penetration testing process is crucial to ensure the inspection systems vigour towards achieving master production schedule and customers satisfaction. This paper investigates and experimentally, the influence of penetration dwell time on development time in liquid penetration testing. Also considering value of hardness and surface roughness as the factor, the obtained results confirm that high penetration dwell time show strongly change the development time of liquid penetration time in directly decrease the inspection time.
Recently a rapid prototyping method for building parts layer-by- layer has led to interest in fab... more Recently a rapid prototyping method for building parts layer-by- layer has led to interest in fabrication of electrical circuits and optical devices by inkjet printing. In this study a Java program was developed to control a commercial piezoelectric inkjet printer whose nozzles are about 30 μm with experiments focusing on the drop positioning and arrangement required to fabricate three-dimensional structure layer by layer. A single nozzle inkjet device whose nozzles are about 100 μm was also fabricated to study the basic operating parameters affecting the fluid drop formation such as cavity length, viscosity and amplitude voltage.
As many researches focused on application of non-destructive testing, very less concerned on the ... more As many researches focused on application of non-destructive testing, very less concerned on the critically to reduce the inspection time rely on decrease cost operation. Liquid penetration testing has been broadly used for over 30 years in creation industrial operation. The need for reducing time in liquid penetration testing process is crucial to ensure the inspection systems vigour towards achieving master production schedule and customers satisfaction. This paper investigates and experimentally, the influence of penetration dwell time on development time in liquid penetration testing. Also considering value of hardness and surface roughness as the factor, the obtained results confirm that high penetration dwell time show strongly change the development time of liquid penetration time in directly decrease the inspection time.
Recently a rapid prototyping method for building parts layer-by- layer has led to interest in fab... more Recently a rapid prototyping method for building parts layer-by- layer has led to interest in fabrication of electrical circuits and optical devices by inkjet printing. In this study a Java program was developed to control a commercial piezoelectric inkjet printer whose nozzles are about 30 μm with experiments focusing on the drop positioning and arrangement required to fabricate three-dimensional structure layer by layer. A single nozzle inkjet device whose nozzles are about 100 μm was also fabricated to study the basic operating parameters affecting the fluid drop formation such as cavity length, viscosity and amplitude voltage.
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Papers by Mustaffa Ibrahim