This research deals with the processing of wood using a circular saw, which is associated several risks and factors that affect wood-splitting process. One them wear teeth saw blade change magnitude cutting forces. The aim this study to compare real measured values theoretical when Norway spruce two types blades, i.e., sintered carbide (SC) high-speed steel (HSS), diameter 600 mm 54 56 teeth, r...

Wear of sliding contacts leads to energy dissipation and device failure, resulting in massive economic and environmental costs. Typically, wear phenomena are described empirically, because physical and chemical interactions at sliding interfaces are not fully understood at any length scale. Fundamental insights from individual nanoscale contacts are crucial for understanding wear at larger leng...

In this paper we propose to model a simplified wood shop. Following the work of Demaine, Demaine and Kaplan in [4] we limit the cutting tools of our carpenter to a circular saw. We extend that previous work to include a model of basic rules of carpentry and joinery. This model is then applied to the problem of building a polygon P by joining together strips of wood and cutting them with a circu...

In this research work a series of tests were conducted in order to determine flank wear and cutting force FY on hard AISI 440 C martensitic stainless steel and SCM 440 alloy steels. The operating parameters are cutting speed, feed rate and a constant depth of cut to investigate the flank wear and cutting force. No cutting fluid was used during the turning process. The cutting tool used was CBN ...

The application of an electrically conductive diamond material to a new type of grinding wheel whose cutting edges possess electrical conductivity has been tried in this research work. Firstly, electrical discharge machining is applied on a solid surface of an electrically conductive CVD diamond film to create protrusions like cutting edges. Secondly, it is confirmed that the EDMed surface of t...

Abstract: Diamond disc pad conditioning is traditionally employed to restore pad planarity and surface roughness in chemical mechanical polishing (or planarisation) (CMP). In this paper, a conditioning density distribution model is developed to predict the pad surface shape resulted from the diamond disc conditioning in CMP. A kinematic study is carried out to calculate and simulate the diamond...

Currently, the standard material used for micro end mill tooling is sintered tungsten carbide with a cobalt binder. Its brittle nature coupled with the micro-scaled cutting features of the end mills often result in rapid tool degradation. Tool life and cutting performance can be significantly improved using a thin nanocrystalline diamond (NCD) coating. The high hardness (~90 GPa), low coefficie...