Papers by Keyword: Abrasive Technology

Abstract: Experimental research on surface roughness and material removal rate of D2 steel lapping is carried out using a polymer plate. The tribological mechanism of lapping for ductile materials is presented and the polymer-based lap plate is described in this study. Thus, an investigation is conducted using ANOVA method to determine the effects of lapping time, lap rotation speed, applied load and abrasive particle size on the lapping process for D2 steel discs with the polymer-coated plate. Regression models are put forward and verified for predicting surface roughness and MRR (material removal rate) as a result of the control variables. An optimal combination of process parameters is given for optimizing the lapping process.

Abstract: The application of abrasive technology in dentistry dates from 7000–9000 years. How does this ancient technology affect our modern society where the elderly population needs extensive dental care and ageing well and ageing productively is our first priority Many patients prefer tooth-colored, all ceramics restorations fabricated by dental CAD/CAM systems for reasons of esthetics, biocompatibility and high efficiency. In spite of the advantages of all-ceramic restorations, ceramic prostheses have not always performed as predicted or desired. Catastrophic fracture has been the most frequently reported reason for failure of all-ceramic restorations. This paper gives a brief review on abrasive technology in ceramic restorative dentistry to highlight problems to be solved by our abrasive technology community.

Abstract: Single-crystal diamond tools can be used for cutting high precise parts with high efficiency, but it is very difficult to abrade it, which is one of study purposes in this paper. This project can be done on the high precise machine tools by using a diamond abrasive wheel with super fine grain size. In this paper, the abrading mechanism is represented, an efficient abrasive method is invented, the major factors which have an important effect on abrasive efficiency and accuracy are discussed, such as abrasive wheel grain size, bonding agent, hardness, speed, pressure and feeding speed etc and some results raising abrasive efficiency and accuracy are obtained. By using the single-crystal diamond tool abraded by author, the degree of roughness of the parts can come up to Ra0.05.