Summary Manual 2

Diamond Segment
Production Technology
by Osvaldo Cai
Back issues of Diamante A&T are available
on request for interested operators:
info@gmassdiamante.com
Part I - Diamante A&T no. 24
Classification of diamond segments by shape
Straight and radial segments
Applications and functions of different segment types
Manufacture of diamond segments
Principles of calculation for the manufacture of a diamond segment of a simple geometrical shape
Calculation of the weight of bond and diamond for 250mm disk
Table of segment geometries by cross section or shape
Part II - Diamante A&T no. 28
From powders to green preshaping (cold premoulding)
Upright premoulding
Flat premoulding
Flat premoulding by gravimetric press
Preshaping of the same segment by the upright system
Premoulding by volumetric press
Part III - Diamante A&T no. 30
Sintering
Ratio between green and sintered volumes
Passage furnaces
Part IV - Diamante A&T no. 31
The composition of metal bonds
Part V - Diamante A&T no. 32
Parameters characterising the binder-diamond system in segments
Diamond grain retention
Wear resistance of the binder
Part VI - Diamante A&T no. 34
Principal parts of the diamond disc
Soldering of diamond segment onto the steel body
Soldering strength
Overheating of steel body
Effect of overheating due to soldering
Part VII - Diamante A&T no. 36
Tensioning and final checking of a diamond tool
Rotation checking bench
Control rulers
Quantification of disc tensioning
Part VIII - Diamante A&T no. 40
The art of tensioning