An experimental study has been performed to investigate the capabilities of dry, conventional and high pressure jet assisted turning of two different hard-to-machine materials, namely hard-chromed and surface hardened Ck45 and Inconel 718. The capabilities of different hard turning procedures are compared by means of chip breakability, technological windows, cooling lubrication efficiency, and cutting forces. All machining experiments are performed under conventional cutting speeds using coated carbide tools.
COBISS.SI-ID: 10829595
This paper presents a case-study that highlights the importance of sustainable machining technologies in achieving sustainable development objectives. Proposed machining technologies were evaluated from the sustainable manufacturing point of view.
COBISS.SI-ID: 11299355
The increasing demands of the industry and cultural sculpturing for complex shaped products in natural stone makes the use of flexible and completely automatic machines such as CNC machining centers necessary. These machines mainly use diamond tools such as synthesized diamond mills, circular blades, polishing tools, etc. For the machining of stone, diamond tools are becoming increasingly important and suitable, especially for the machining of granite and other hard stones.
COBISS.SI-ID: 11265307
The hard turning and grinding of High Speed Steel (HSS) materials with hardness of 61 HRC significantly changes structural properties. Estimators of the cutting conditions are surface roughness, dimensions, tolerances and required structure of the surface layer. Vacuum heat treatment of HSS for cold working applications was used as yielded material with greater toughness, while the hardness was maintained constant or even increased. HSS-BRM2 material that was vacuum quenched and tempered was machined.
COBISS.SI-ID: 10627611