scholarly journals Suitability of natural rocks as materials for cutting tools

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Berend Denkena ◽  
Bernd Breidenstein ◽  
Alexander Krödel ◽  
Benjamin Bergmann ◽  
Tobias Picker ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Aluminium Alloy ◽  
Cutting Tool ◽  
Tool Material ◽  
Rock Properties ◽  
Future Research ◽  
List Type ◽  
Tool Materials ◽  
Cutting Tool Materials ◽  
Operational Behaviour

Abstract This study presents an investigation of the usability and suitability of natural rocks as cutting tool materials. Therefore, indexable inserts are manufactured from eight different rocks and two mono minerals in this study and are used for turning of an aluminium alloy. Besides that, a characterization of the rock properties is performed. The wear of the rock tools and the surface roughness of the workpiece generated by the tools are used to evaluate their operational behaviour. Subsequently, the rock properties and the corresponding operational behaviour are used to assess the suitability of the rocks as cutting tool material. The results show that rock inserts can be used as cutting material for the turning of an aluminium alloy showing a width of wear marks between 83 and 1665 µm at the flank face after a cutting length of 500 m depending on the rock used. Furthermore, it is shown that rock tools are able to achieve surface roughness values which are comparable to those obtainable by using a conventional cemented carbide insert. The study shows that natural rocks can generally be used as alternative cutting material for the turning of aluminium. In addition a possible way for a systematic investigation and assessment of the suitability of natural rocks as cutting tool materials is presented, the relevance of the rock properties for the operational behaviour of the rock inserts is described and relevant future research topics concerning the use of rocks as cutting tool material are identified. Article highlights Demonstrating the possibility to use natural rocks as alternative environmentally friendly cutting tool material. Evaluation of operational behaviour and wear mechanisms of rock tools in turning aluminium. Identification of rock properties relevant for the operational behaviour of rock inserts.

Research Progress of Al2O3 Based and Si3N4 Based Ceramic Tool Materials

2014 ◽  
Vol 900 ◽  
pp. 130-133 ◽  
Author(s):  
Hai Xia Huang ◽  
Yi Hua Feng ◽  
Fu Meng Li ◽  
Hao Sun
Keyword(s):  
Mechanical Property ◽  
Cutting Tool ◽  
Research Progress ◽  
Future Research ◽  
Ceramic Tool ◽  
Toughening Mechanism ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
The Future ◽  
Cutting Tool Materials

In this paper, the sorts, mechanical property, strengthening and toughening mechanism of ceramic cutting tool materials were summarized in the present study, especially the Si3N4 based nanocomposite and Al2O3 based ceramic cutting tool materials. The problems to be solved in the field were suggested. It would act as the foundation in the future research of ceramic cutting tool materials.

Establishment of the Low Defect Ceramic Cutting Tool Database

2013 ◽  
Vol 589-590 ◽  
pp. 357-360 ◽  
Author(s):  
Chang Bin Zou ◽  
Chuan Zhen Huang ◽  
Bin Zou ◽  
Yu Huan Fei ◽  
Han Lian Liu ◽  
...  
Keyword(s):  
Data Structure ◽  
Cutting Tool ◽  
Tool Material ◽  
Material System ◽  
Chemical Compatibility ◽  
Tool Materials ◽  
Abnormal Growth ◽  
Ceramic Cutting Tool ◽  
Preparation Stage ◽  
Cutting Tool Materials

This paper analyzes the reasons of the defects generation of the ceramic cutting tool materials. The defects in the ceramic cutting tool materials are caused by chemical compatibility and physical mismatch during the designing process, and caused by grain abnormal growth and sintering parameters during the preparation stage. The database of low defect ceramic cutting tool is established and the data structure of the database is described. The users can use the database to design the tool material system through the mode that can reduce the defects.

Effect of Cutting Tool Materials on Surface Roughness and Cutting Forces in Machining of Al-Si3N4 Composite Produced by Powder Metallurgy

2007 ◽  
Vol 534-536 ◽  
pp. 869-872 ◽  
Author(s):  
Yusuf Ozcatalbas ◽  
Ersin Bahceci ◽  
Mehmet Turker
Keyword(s):  
Surface Roughness ◽  
Powder Metallurgy ◽  
Cutting Forces ◽  
Cutting Tool ◽  
Volume Fraction ◽  
Cutting Tools ◽  
Cutting Performance ◽  
Tool Materials ◽  
The Matrix ◽  
Cutting Tool Materials

In this study, aluminum-based composites reinforced with various amounts of α-Si3N4 were produced by powder metallurgy (P/M). The machinability properties of MMCs were determined by means of cutting forces and surface roughness. Machining tests were carried out by using PCD and K10 cutting tools. Increasing of Si3N4 volume fraction in the matrix resulted in a decrease of the surface roughness and turning forces. PCD cutting tools showed better cutting performance than K10 tools. Surface roughness and turning forces were decreased significantly by PCD tool.

Friction and Wear of Typical Tool Material at Elevated Temperature

2011 ◽  
Vol 199-200 ◽  
pp. 646-650 ◽  
Author(s):  
Hui Zhang ◽  
Jian Xin Deng ◽  
Ze Wu ◽  
Xing Ai ◽  
Jun Zhao
Keyword(s):  
Friction Coefficient ◽  
Friction And Wear ◽  
Cutting Tool ◽  
Wear Behavior ◽  
Tool Material ◽  
Cemented Carbide ◽  
Friction And Wear Behavior ◽  
Tool Materials ◽  
Worn Surface ◽  
Cutting Tool Materials

The friction and wear behavior of cutting tool materials keeps an issue. In this study, an high temperature tribometre (UMT-2) was used to investigated the tribology properties and mechanism of two kinds of typical cutting tool materials. Commonly used cemented carbide (ZU5) and ceramic (AT) were chosen. The characteristics as to wear rate, friction coefficient and worn surface were studied. From the results, we found that the ceramic had better wear resistance than the cemented carbide. The friction coefficient of cemented carbide decreased with the increase of ambient temperature while the ceramic exhibited an inverse tendency. Finally, the probable wear mechanism was discussed.

Development of Al2O3/TiC/CaF2 Graded Self-Lubricating Ceramic Cutting Tool Materials

2012 ◽  
Vol 723 ◽  
pp. 258-263 ◽  
Author(s):  
Guang Yong Wu ◽  
Chong Hai Xu ◽  
Yong Lian Zhang ◽  
Ming Dong Yi
Keyword(s):  
High Speed ◽  
Cutting Tool ◽  
Tool Material ◽  
Functionally Graded ◽  
Superior Performance ◽  
Dry Machining ◽  
Graded Materials ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
Cutting Tool Materials

The design concept of functionally graded materials was first introduced into the development of self-lubricating ceramic cutting tool materials. An Al2O3/TiC/CaF2graded self-lubricating ceramic cutting tool material was designed and fabricated. Mechanical properties were evaluated by comparing with those of Al2O3/TiC/CaF2homogeneous self-lubricating ceramic cutting tool material. The results showed that the Al2O3/TiC/CaF2graded self-lubricating ceramic cutting tool material had superior performance to the counterpart. Graded self-lubricating ceramic cutting tool materials are bound to have promising prospect in the field of high speed dry 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.

scholarly journals Some Aspects of Damage Management for Cutting Tool Materials

2020 ◽  
Vol 12 (1) ◽  
pp. 15-22
Author(s):  
Bagyinszki Gyula ◽  
Bitay Enikő
Keyword(s):  
Cutting Tool ◽  
Material Selection ◽  
Tool Material ◽  
Intended Meaning ◽  
Design Technology ◽  
Technical Language ◽  
Tool Materials ◽  
Cutting Tool Materials ◽  
Term Management ◽  
Operational Aspects

AbstractThere are two concepts in the title that can be seen as “foreign” to the usual technical language. Both can have several meanings and thus we adapted them “flexibly” to the current needs. One way to understand the term “management” is through its functions: planning (defining purpose and means), organizing (defining tasks and methods), and direction (guidance, controlling), inspection (testing, comparing). It can also mean among other things, standpoint, circumstance, respect, or even character. Regarding the expression “damage management” the intended meaning here is reducing or to preventing damage to the tool, also improving the resistance of the tool material to damage, which besides material selection issues also has design, technology and operational aspects. This article gives an overview of some of these.

Thermodynamic, Tribological and Chemical Interdiffusion Study of Ultra-Hard Ceramic AlMgB14 in the Machining of Aerospace Alloys

Manufacturing ◽  
2003 ◽  
Author(s):  
Vikram Bedekar ◽  
Deepak G. Bhat ◽  
Stephen A. Batzer ◽  
Larry Walker ◽  
L. F. Allard
Keyword(s):  
Titanium Alloys ◽  
Cutting Tool ◽  
Wear Behavior ◽  
Chemical Reactivity ◽  
Cutting Tools ◽  
Tool Material ◽  
Work Piece ◽  
Tool Materials ◽  
Aerospace Alloys ◽  
Cutting Tool Materials

There has been a growing concern about the reactivity at the tool/work-piece interface during machining, leading to lower tool life. The problem is more severe especially in the case of aerospace alloys such as Ti-6Al-4V and stainless steels. Recently, a new ultra hard ceramic material, AlMgB14, was reported with properties that show considerable promise as a cutting tool material for machining titanium alloys [1]. This paper investigates the chemical wear behavior of AlMgB14, in the machining of aerospace alloys. The mechanical properties of AlMgB14 are compared with leading cutting tool materials (WC-Co, Al2O3SiCw-TiC and Al2O3-TiC), which are used extensively in machining titanium and ferrous alloys. Materials characterization of candidate tool materials shows that AlMgB14 exhibits superior hardness, fracture toughness and abrasive wear resistance as compared to the other cutting tool materials. We also report on a study of chemical reactivity of tool materials (AlMgB14 and WC-6%Co) in machining various alloys such as Ti-6Al-4V and Fe-18Ni-8Cr. The chemical reactivity was investigated using diffusion tests conducted in vacuum at 1000°C for 120 hrs. Transverse sections of couples were characterized using electron probe micro analysis (EPMA), to determine the extent of diffusion zones. The results show that AlMgB14 shows considerably less reactivity with titanium alloys when compared with cemented carbide cutting tools. It was also observed that the boride reacts significantly with the iron based Fe-18Ni-8Cr alloy. The paper also reports on the evaluation of the free energy of formation of AlMgB14 using the thermochemical software program FactSage™.

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