The Research of Graphite Electrode to Processing Technology and NC Programming

2012 ◽  
Vol 472-475 ◽  
pp. 1009-1012
Author(s):  
Zhong Guo
Keyword(s):  
Structural Design ◽  
Cutting Tool ◽  
Graphite Electrode ◽  
Cutting Parameters ◽  
Processing Technique ◽  
Processing Method ◽  
Electric Discharge Machining ◽  
Tool Materials ◽  
Nc Programming ◽  
Cutting Tool Materials

Based on the analysis of graphite processing characteristics, this work presents the research of the graphite electrode structural design for electric discharge machining, and also describes the option of graphite processing cutting tool materials and the angle of cutting parameters. The standard-processing technique of graphite electrode NC machining is discussed, and the special processing method of the kind of thin and narrow electrode machining is explored, The availability of research results is verified by the examine in practical machining

A granulation analysis method for cutting tool material selection using granular computing

2015 ◽  
Vol 230 (13) ◽  
pp. 2323-2336 ◽  
Author(s):  
Danchen Zhou ◽  
Xuan Dai
Keyword(s):  
Granular Computing ◽  
Granular Layer ◽  
Cutting Tool ◽  
Material Selection ◽  
Tool Material ◽  
Cutting Parameters ◽  
Analysis Method ◽  
Tool Materials ◽  
Material Information ◽  
Cutting Tool Materials

Reasonable selection of cutting tool materials has an important effect on machining efficiency, machining quality, cutting tools life, and production cost. There always exists a problem of correct matching between cutting tool materials and workpiece materials. The multi-criteria decision-making is currently the predominant method for cutting tool material selection, and its accuracy can be further improved based on full consideration of the workpiece materials and cutting parameters. For this reason, a granulation analysis method based on granular computing is presented. Firstly, according to the similarity of various cutting tool materials across different attributes represented in interval values including physical properties, mechanical properties, and cost, a fuzzy similarity matrix of all the cutting tool materials to be analyzed is established; and a series of material information granular layers with different granularity is constructed by using quotient space theory based on fuzzy tolerance relation. Afterwards, information entropy is applied to measure their granularity, and an optimal granular layer is determined based on a quantitative and objective standard. Finally, in the optimal granular layer, through determining the averages and ranks of all the material information granules under different attributes, the corresponding common characteristics of similar cutting tool materials in each material information granule are analyzed, and their matching workpiece materials and cutting parameters are summarized. The analysis and summary will provide effective guidance for subsequent multi-criteria decision-making of cutting tool materials. An application example proves the feasibility and validity of the proposed method.

Roughness Improvement in Hard Turning when Changing Cutting Parameters and Using Differently Shaped Ceramic Tools

2014 ◽  
Vol 474 ◽  
pp. 345-350
Author(s):  
Michaela Samardžiová ◽  
Miroslav Neslušan
Keyword(s):  
Hard Turning ◽  
Cutting Tool ◽  
Cutting Parameters ◽  
Hardened Steel ◽  
Rockwell Hardness ◽  
Tool Materials ◽  
Ceramic Tools ◽  
Mixed Ceramics ◽  
Cutting Tool Materials ◽  
Cutting Speeds

This article deals with hard turning using wiper and conventional geometry of cutting tool. The aim of this paper is to compare surface roughness when using different feeds and different cutting speeds when turning with different cutting tool ́s geometries. For the experimental research was used hardened steel 100Cr6 with Rockwell hardness 62 HRC. There is a possibility to use two different cutting tool materials for finish machining of hardened steels with hardness 45 65 HRC: PCBN and mixed ceramics. Aluminum oxide plus TiC was used in this experiment.

Cutting tool materials III

Metal Cutting ◽  
2000 ◽  
pp. 227-249 ◽  
Author(s):  
Edward M. Trent ◽  
Paul K. Wright
Keyword(s):  
Cutting Tool ◽  
Tool Materials ◽  
Cutting Tool Materials

Mechanical Properties and Microstructure of Self-Lubricating Ceramic Cutting Tool Materials

2004 ◽  
Vol 471-472 ◽  
pp. 221-224 ◽  
Author(s):  
Jian Xin Deng ◽  
Tong Kun Cao ◽  
Jia Lin Sun
Keyword(s):  
Mechanical Properties ◽  
Cutting Tool ◽  
Solid Lubricants ◽  
Polished Surface ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
Micro Cracks ◽  
The Difference ◽  
Cutting Tool Materials

Al2O3/TiC ceramic tool materials with the addition of solid lubricants such as BN and CaF2 were produced by hot pressing. Effect of the solid lubricants on the microstructure and mechanical properties has been studied. Results showed that AlN phase resulted from the reaction of Al2O3 with BN was formed in Al2O3/TiC/BN composite after sintering. Significant micro-cracks resulted from the residual stress owing to the difference in the thermal expansion coefficient were found on the polished surface, and caused large mechanical properties degradation. While Al2O3/TiC/CaF2 composite showed higher flexural strength, fracture toughness, and hardness compared with that of Al2O3/TiC/BN composite owing its porosity absent and finer microstructure.

Sign in / Sign up

Export Citation Format

Share Document