Efforts to reduce COx are extremely important, which forces the use of materials and technologies that weight means transport in order energy consumption. Currently, aluminum alloys FRP composites still too expensive for mass industry applications. Presented this study, Litecor is a three-layer composite combines high strength steel with low density plastic. Thanks external covers 0.3 mm thick ...

Single point incremental sheet forming (SPISF) has demonstrated significant potential to form complex sheet metal parts without using component-specific tools and is suitable for fabricating low-volume functional sheet metal parts economically. In the SPIF process, a ball nose tool moves along a predefined tool path to form the sheet. This work aims to optimize the formability and forming force...

Discharge patterns produced by fibres from normal and impaired auditory nerves in response to speech and other complex sounds can be discriminated subjectively through visual inspection. Similarly, responses from auditory nerves where speech is presented at diminishing sound levels progressively deteriorate from those at normal listening levels. This paper presents a Neurogram Similarity Index ...

ultrasonic vibration assisted single point incremental forming (uvaspif) process is an attractive and adaptive method in which a sheet metal is gradually and locally formed by a vibrating hemispherical-head tool. the ultrasonic excitation of forming tool reduces the average of vertical component of forming force and spring-back rate of the formed sample. the spring-back phenomenon is one of the...

In the present work, use of support vector machine (SVM) algorithm is proposed to generate models that allow predicting geometrical accuracy molds manufactured via single point incremental forming (SPIF) using aluminized steel sheets DX51D AS120 B CO. For this purpose, 27 were manufactured, dummy technique, and employing different process parameters (tool diameter, spindle speed, feed rate, ste...

Lightweight materials, such as titanium alloys, magnesium and aluminium are characterised by unusual combinations of high strength, corrosion resistance, low weight. However, some the grades these alloys exhibit poor formability at room temperature, which limits their application in sheet metal-forming processes. materials used extensively automobile aerospace industries, leading to increasing ...