A transcendental to changing metal powder characteristics

The Effect of Powder Recycling in Direct Metal Laser Deposition on Powder and Manufactured Part Characteristics

A potential way of improving the material efficiency and cost effectiveness of the Direct Metal Laser Deposition (DMLD) process is to take powder that is not utilised in each deposition attempt and re-use it in subsequent attempts (powder recycling). Currently, this is not widely implemented for fear of a detrimental effect on part quality. This study examines how powder recycling, using simple...

Metal Powder-filled Polyethylene Composites. v. Thermal Properties Metal Powder-filled Polyethylene Composites. v. Thermal Properties

Thermal properties—such as thermal conductivity, thermal diffusivity, and specific heat—of metal (copper, zinc, iron, and bronze) powder-filled high-density polyethylene composites are investigated experimentally in the range of filler content 0–24% by volume. Experimental results show a region of low particle content, 0–16% by volume, where the particles are distributed homogeneously in the po...

Changing trends in characteristics of infantile hydronephrosis

  Background : Hydronephrosis (HN) or calycial dilatation is the most common prenatal urologic abnormality. The aim of this study was to identify the possible changes in demographic and clinical manifestations of infantile HN in previously and recently diagnosed patients.   Methods : 193 children with infantile HN admitted to Ali-asghar Children's Hospital in two different periods (group 1 1997...

Electro Discharge Machining Characteristics of Mg/SiCP Metal matrix composites by Powder Metallurgy (P/M) Techniques

The objective of this work is to investigate the effects of current, pulse on time and pulse off time in Electro Discharge Machining performance on material removal rate and tool wear rate of Mg/SiCp metal matrix composites. In this work the Mg/SiCp metal matrix composite specimens were prepared by powder metallurgy route. ELEKTRA PLUS spark erosion machine was used for the purpose. Brass tool ...

Nano Powder Direct Metal Sintering Systems Specification