Front Cover: WORKDIAMOND S.R.L.
Via del Commercio 9, 29012 Caorso (PC) - Italy

Since 1980, Workdiamond has grown from a small artisan company to become an international leader in the production of diamond blades, with retailers and distributors throughout Italy and over 50 countries worldwide.

www.workdiamond.it

10) Workdiamond, 45 years of Italian excellence in continuously evolving diamond tools

14) An open-air museum in the heart of nature, a cultural and artistic landmark in the Sultanate of Oman

25) The global meeting point of the natural stone industry. Marble Izmir, to take place on April 14-17, 2026

30) Dry and wet cutting with diamond tools. Operational observations from real job sites

Operations involving diamond tools are now part of everyday activities on many job sites, both large and small. Cutting with power cutters, wall chasing, and single or repeated core drilling are often short-duration tasks, yet they are performed repeatedly throughout the working day. It is precisely this combination of brief interventions and repetitive operations that, in practice, may lead to an underestimation of the overall working context. Professional equipment is used, often of a very high standard, yet established operating methods tend to be repeated without being reconsidered in light of the available space, total exposure time, or the presence of other workers nearby. In most cases, these are not large, highly structured job sites, but rather indoor environments, renovation projects, technical rooms, stairwells, parking facilities, or areas shared with other activities. These are real, dynamic contexts in which the job site coexists with everyday operations. Machines may change, but operational dynamics remain largely the same. Power cutters, wall chasers, core drilling units, andmore complex cutting systems are selected based on accessibility, urgency, and the required outcome. The decision to work dry or wet is also frequently driven by immediate practicality rather than by a comprehensive assessment of operating conditions...

41) Improvement in abrasive wear resistance of metal matrix composites used for diamond-impregnated tools by heat treatment

Abstract: This work presents the possibilities of producing a substitute for a commercial matrix material for sintered metal-diamond tools which is characterized by increased tribological properties required in machining natural stones and concrete. In this study, the improvement in wear behavior of sintered prealloyedmatrix caused by a thermal treatment was investigated. Several mixtures made of commercially available powders were homogenized by ball milling and consolidated at 900 °C using the spark plasma sintering (SPS) method. During cooling down, the specimens were subjected to isothermal holding at 350 or 250 °C for 1 h. After consolidation, all specimens were tested for density and hardness, whereas selected specimens were characterized by scanning electron microscopy (SEM) and flexural strength tests.The specimens made of BDCM50 powder (a mixture of the base and pre-alloyed powders in 50:50 proportion) shows excellent properties including σ_0,2 = 1045 MPa in the three-point bending test and HV10 ≈ 380. Resistance to abrasive wear evaluated in both three-body and two-body conditions in the MWT abrasion test was estimated at Ai₃ = 18.1 ± 3.9 μm/20 m and Ai₂ = 95.9 ± 11.8 μm/20 m, respectively. A series of diamond-impregnated specimens (segments) was also produced and tested for wear rate on abrasive concrete...

55) Recovered cemented carbide scrap as powder raw material

Abstract: Cemented carbide scrap was reclaimed by commercial zinc recycling process to fine powder. Life cycle assessment study revealed clear benefits of recycling. The fine powders were further processed by spray drying and high shear mixing to feed stocks usable for sintering and thermal spraying. Both powders and manufactured parts were characterized and compared to references. According to our results slight variations in the composition seems to be negligible. Process and application relevant composition adjustments (Co,Cr etc.) can be performed like primary materials. The most critical issue is the particle size distribution, shape, and density of both fine powder and granulated feed stock. As good as or even better results than reference were obtained affected by small differences in particle characteristics, which indicate very good applicability of the reclaimed WC-Co materials. High performance products can be assured by careful selection of the scrap and adjusting process phases according to application...

66) UCIMU: in the fourth quarter of 2025 machine tool orders were down (-13.6%). Domestic orders -2.9%, foreign orders -17.1%

70) Slot cutting precision at the Vancouver International Airport