Tribological characteristics and cutting performance of Crx%C-coated carbide tools

Su, Yean-Liang; Liu, Tzuan-Horng; Su, Chih-Tsong; Yur, Jiahn-Piring; Kao, W. H.; Yao, Shuhuai

doi:10.1016/j.jmatprotec.2004.04.093

Cited by 14 publications

(4 citation statements)

References 8 publications

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“…One can see a large amount of adhered layer, which is the transferred DIN 9SMnPb36 steel material, covered in the flank face. As the chromium content of the coating material increases, the adhesion phenomenon in the dry turning becomes more accentuated [24, 25]. Therefore, the CrN-coated tool had a larger flank wear than TiN-coated one.…”

Section: Resultsmentioning

confidence: 99%

Quantifying Cutting and Wearing Behaviors of TiN- and CrNCoated AISI 1070 Steel

Cakan

Özkaner

Yıldırım

2008

Sensors

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Hard coatings such as titanium nitride (TiN) and chromium nitride (CrN) are widely used in cutting and forming tools against wear and corrosion. In the present study, hard coating films were deposited onto AISI 1070 steels by a cathodic arc evaporation plating (CAVP) technique. These samples were subjected to wear in a conventional lathe for investigating the tribological behaviour of coating structure, and prenitrided subsurface composition was characterized using scanning electron microscopy (SEM), line scan analyses and X-ray diffraction (XRD). The wear properties of TiN- and CrN-coated samples were determined using an on-line monitoring system. The results show that TiN-coated samples demonstrate higher wear resistance than CrN-coated samples.

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Section: Resultsmentioning

confidence: 99%

Quantifying Cutting and Wearing Behaviors of TiN- and CrNCoated AISI 1070 Steel

Cakan

Özkaner

Yıldırım

2008

Sensors

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“…Wear, in its various forms, has a key role in the lifetime of cold-work tools and machine components 3 . During the past decades, the ceramic coatings have been used for increasing the lifetime of forming tools, cutting tools and machine components [4][5] . These layers are mainly constituted by borides, carbides, nitrides and carbonitrides of transition metals [4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

“…During the past decades, the ceramic coatings have been used for increasing the lifetime of forming tools, cutting tools and machine components [4][5] . These layers are mainly constituted by borides, carbides, nitrides and carbonitrides of transition metals [4][5][6][7] . Ceramic coatings of titanium compounds (TiN, TiC, and TiCN) are generally used for this purpose [8][9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Deposition of Multicomponent Chromium Carbide Coatings Using a Non-Conventional Source of Chromium and Silicon with Micro-Additions of Boron

et al. 2017

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The chromium carbide coatings are widely used in the mechanical industry due to its corrosion resistance and mechanical properties. In this work, we evaluated a new source of chromium and silicon with micro-additions of boron on the deposition of multi-component coatings of chromium carbides in W108 steel. The coatings were obtained by the pack cementation method, using a simultaneous deposition at 1000 o C for 4h. The coatings were analyzed by X-ray diffraction, X-ray energy dispersive spectroscopy, optical microscopy, microhardness test method and pin-on-disc wear test. It was found that the coatings formed on W108 steel were mainly constituted by (Cr,Fe) 23 C 6 , (Cr,Fe) 7 C 3 , Cr 5-x Si 3-x C x+z , Cr 3 B 0,44 C 1,4 and (or) Cr 7 BC 4 . The carbide layers showed thicknesses between 14 and 15 µm and maximum values of microhardness between 15.8 and 18.8 GPa. Also, the micro-additions of boron to the mixtures showed statistically significant influence on the thickness, microhardness and abrasive wear resistance of the carbide coatings.

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“…Regarding the field of drill geometry and cutting parameters, the researches for optimal design of drill point (Hsieh, 2005) and on drill materials, structure and analysis of mechanical properties (Su et al , 2004) are noteworthy. Similar importance applies to the researches regarding the automation of drill inspection methods for detecting major defects (Tien et al , 2004).…”

Section: Introductionmentioning

confidence: 99%

The processing time optimization of printed circuit board

Ancău

2009

Circuit World

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PurposeThe purpose of this paper is to demonstrate the optimization of printed circuit board (PCB) manufacturing by improving drilling process productivity.Design/methodology/approachTwo different ways are explored to increase the productivity of the PCB drilling operation. The first way involves the minimization of the cutting‐tool path length. The second way to achieve the objective explores the efficiency of processing stacked PCBs.FindingsTo reduce the tool path length between the holes of a PCB, a heuristic hybrid algorithm to solve the traveling salesman problem (TSP) is briefly described. Also, a mathematical model to calculate the total processing time is proposed. Based on this model, the paper shows the optimal number of stacked PCBs that can be profitably processed, while high processing productivity does not always mean high number of stacked PCBs.Research limitations/implicationsThe paper does not treat the optimization of the drilling process parameters, even if reduction of the drilling time using optimized cutting parameters also represents an efficient method for improving the productivity.Originality/valueThe paper shows the influence of the algorithm performance for solving the TSP on the processing time minimization, by decreasing the component of drill movement time along the drill path between holes. Additionally, the conditions in which stacking a specific number of PCBs is advantageous are also investigated. Furthermore, the paper shows how to determine the optimum number of stacked PCBs.

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Tribological characteristics and cutting performance of Crx%C-coated carbide tools

Cited by 14 publications

References 8 publications

Quantifying Cutting and Wearing Behaviors of TiN- and CrNCoated AISI 1070 Steel

Quantifying Cutting and Wearing Behaviors of TiN- and CrNCoated AISI 1070 Steel

Deposition of Multicomponent Chromium Carbide Coatings Using a Non-Conventional Source of Chromium and Silicon with Micro-Additions of Boron

The processing time optimization of printed circuit board

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