![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A method of measuring the interparticle friction of metal powders under conditions of applied vibrational energy has been devised. With zero vibrational energy, the friction, expressed as an angle or as a coefficient, can be correlated with the basic characteristics of a powder, provided that the conditions of settling are standardized to provide consistent density values. The effect of the variation of settled density is shown.
By the application of rectilinear sinusoidal vibrational energy to the powders, it can be shown how the variation and combinations of frequency and displacement effectively reduce interparticle friction, thus enhancing flow and settling of metal powders into dies offering difficult contours and restrictive sections.
Notes
* Manuscript received 10 May 1974. Contribution to a Symposium on ‘Factors Affecting the Uses of PM Products’, to be held in Eastbourne on 28–30 October, 1974.