Electromagnetic forming is a high energy rate forming process in which an electromagnetic Lorentz body force is used for deformation of products.  In this article, electromagnetic forming process was simulated for the assembly of parts as an innovative method.  The effect of important process parameters such as discharge energy, radius and width of rectangular groove on the strength of the asse...

Severe surface roughening during the hydroforming of aluminum alloy parts can produce surface defects that severely restrict their application in the automobile and aerospace industry. To understand the relation between strain, grain size and surface roughness under biaxial stress conditions, hydro-bulging tests of aluminum alloy tubes were carried out, and the tubes with different grain sizes ...

The effect of a localized SiO2 codoping on the conversion of polycrystalline, MgO-doped Al2O3 tubes to single-crystal sapphire was investigated. Codoping with SiO2 before sintering intentionally triggered abnormal grain growth, which resulted in the full conversion of tube surfaces to single crystal without adversely affecting densification to a almost pore-free, translucent state. The degree o...

Fish is a food ingredient that widely consumed by Indonesian people. The preferred type of fish catfish. problem often experienced cultivators during the manual feeding process. feed container serves as storage place for pellets on ejector automatic process, this has many types but one used in tool aluminum. Besides being cheap, aluminum also properties light, soft, easy to shape and anti-rust ...

An experimental study for air-side thennal-hydraulic performance of brazed aluminum heat exchangers under dehumidifYing conditions has been performed. For 30 samples of louvered fin heat exchangers with different geometrical parameters, the heat transfer and pressure drop characteristics for wet surface were evaluated. The test was conducted for air-side Reynolds number in the range of 80-300 a...

Aluminum alloys are considered a lot in the automotive and aerospace industry because of their high strength to weight ratio. In this manuscript, the gas forming process of aluminum AA6063 tubes at high temperatures up to 500°C is investigated, through experimental and numerical tests. Therefore, an experimental setup is prepared and so, tube specimens are formed in a die with square cross sect...

Personal cooling garments were reported effective in improving thermal comfort hot environments. In this study, three liquid–air hybrid and one control garment designed made: aluminum-tube fan (AAL), silicone-tube (SAL), with inner yarn fabric (YAL), a (CON) without the sources. Subject trials performed by eight female subjects climate chamber to simulate summer indoor working environment at 32...

This work investigates the light illumination intensity, transmission performance, distribution on floor, and daylight factor of vertical hollow tubes at various incident elevation angles a source. The were made from commercial aluminum alloy sheets zinc to investigate internal illuminance for buildings reducing demand electrical energy artificial lighting. with constant length 0.5 m diameters ...