In this paper, the performance of the cutting tool with nanocrystalline multilayer coatings (TiN+TiAlN) for machining of superalloy Inconel 718 in the dry and wet conditions was studied. The multi layer TiN and TiAlN with nanocrystalline structure was applied by physical vapor deposition technique (arc evaporation) on the WC-Co inserts. The results of the ball on disc wear test and the machinin...

To explore the influences of microwave irradiation on rock-breaking efficiency tunnel boring machine (TBM) cutters, a multimode cavity with power 2100 W was used to conduct tests Chifeng basalt for different durations. A combined abrasion test device reduced-scale SP3-I TBM cutter adopted wear and samples before after irradiation. Influences loss cutter, rock removal, cutting force, specific en...

This paper argues for using ambiguity plane features within dynamic statistical models for classification problems. The relative contribution of the two model components are investigated in the context of acoustically monitoring cutter wear during milling of titanium, an application where it is known that standard static classification techniques work poorly. Experiments show that explicit mode...

A simple but viable whole stalk harvester for operating under local field conditions, which is compatible with existing manual and mechanical loading and hauling systems, is described. The efficiency and output of the cutter which has been tested over a number of harvesting seasons, and the operating costs are estimated. Various systems of handling both green and burnt cane by the Midway are co...

Instantaneous friction and wear energy density are important indicators of the state tooth flank milling cutter. Existing methods for identifying on cutters mainly focus overall level consumption maximum width accumulated teeth flanks, ignoring unevenness variability volume distribution tool flank, dynamic relationship between instantaneous each cutter is to be revealed. Transient cutting posit...

In this investigation the friction and wear performance of GUR 1020 medical grade ultra-high molecular weight polyethylene (UHMWPE) polymer under dry sliding, distilled water and egg albumen lubrication conditions were evaluated. The sliding experiments were carried out on a pin-on-disc tribometer. The contact configuration used was a polymer pin on a rotating AISI 304L stainless steel disc. We...

A sugarcane harvester prototype was fabricated and evaluated to save time, labor, harvesting expenses, which are included in production costs. The single-row fits the functional needs of physical qualities designed be installed on a tractor. One serrated edge cutter disc, three forward speeds, disc speeds were used evaluate performance harvester. results technical evaluation showed that average...

Abstract Considering the serious wear of disk cutters in tunnel project and low prediction accuracy existing methods, a new method for from an energy perspective was proposed. Based on contact mechanics, rock breaking process analyzed, combined action sliding rolling friction considered. Furthermore, model established, which realized predicted under different geological conditions throughout co...

A Numerically-Controlled (NC) machine typically consists of a worktable and a spindle (or cutter) with several axes of freedom for positioning the tool. In this paper, we restrict our attention to machines having only translational freedom. We focus on 2D milling, which can only cut out planar objects, and 2 1 2D milling where only two of the axes are continuous-path controlled and the third ax...