Diamante A&T Contents Year XXVIII - June 2022 |
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Front Cover: POLIGEM SRL Poligem is a private independent company that has been a leader in the superabrasive market since 1996. Thanks to the experience accumulated in the synthesis, selection and grinding of the diamond, Poligem has been for years a constant presence in Europe in the tools, abrasives and non-conventional diamond applications sectors. From natural diamond to synthetic diamond, from polycrystalline diamond to Cubic Boron Nitride, Poligem is able to respond with the best solution to the needs of the industry. Abstract Forum Universo Diamante 39° AIM National Congress Padua, 21 September 2022
14) When you say "Diamond". A warm welcome and good work to all!
15) Saw grit diamond sizes, linearisation & effects on stone cutting
16) Graphite from industrial waste streams
17) Development and characterization of a corrosion resistant metal matrix for the production of diamond tools
18) Powder materials manufactured by industrial mechanical alloyings
20) The training of diamond mining technicians in Angola: the role of Italian academic cooperation
21) Performance improvement of PDC and PDC bits by cryogenic treatment
22) Influence of cryogenic treatments on metal bonds for diamond tools
23) orrelation between diamond tools functional behaviour and their metal bonds characteristic parameters
24) Optimization of complex tool systems by means of multivariable functions, statistics and division of the entire process into homogenous sub components
25) The "Controlled Destruction" with diamond tools applied to modifications and recycling of major steel structures
26) New triple-layer polycrystalline diamond compact
27) Traditional and innovative powder solutions for the diamond tools industry
28) A pin-on-disc study on the wear behavior of PCD-Nb composites dry sliding against ferrous or non-ferrous materials Stone 64) Successful new start for Stone+tec: the natural stone industry is back in Nuremberg 66) Xiamen Stone Fair 2022, new trends of the stone industry Mechanics
68) Inspecting ultra-hard materials and processes using Acoustic Micro Imaging (AMI) Abstract: Acoustic Micro Imaging (AMI) is a nondestructive inspection technique that utilizes high frequency ultrasound to examine
and characterize a wide variety of high-tech materials and processes. The technique can be used to 1) measure empirical material properties such as velocity, layer thickness, porosity and
attenuation as well as, 2) detect a wide variety of defects and/or failures within materials such as cracks, voids, dis-bonds and/or delamination's. With source frequencies ranging from
5 to 300 MHz, the technology has the capability to image features as small as 3 to 5 microns in size. Applications range from inspecting ultra-hard materials to
ceramics, composites, metals and plastics as well as epoxies, adhesives, solders and pastes. This paper will review the basic theory and principles behind
the technology of AMI and cover specific applications within hard materials including the inspection and characterization of synthetic diamond or poly-crystalline diamond (PCD), bond
evaluation of PCD to tungsten carbide (WC) cutters and flaw detection in related bonding, cutting and polishing processes. |
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