The Experts below are selected from a list of 1926 Experts worldwide ranked by ideXlab platform

Deba Kumar Sarma - One of the best experts on this subject based on the ideXlab platform.

  • a study in turning of aisi d2 steel with textured and non textured coated carbide tool at the Flank Face
    Materials Today: Proceedings, 2020
    Co-Authors: Deba Kumar Sarma, Sanjib Kr Rajbongshi
    Abstract:

    Abstract SurFace texturing of a cutting tool is a new technique which can enhance the cutting performance during machining. In the present work micro-EDM is applied to produce texture at the tool Flank Face. Two types of texture, i.e. groove and dot are made at the Flank Face of a coated carbide tool for machining AISI D2 steel. For comparison purpose, machining is performed using non-textured tool also. Cutting speed, feed and depth of cut are selected as the cutting parameters, each having two levels. The cutting force and feed force are considered as main performance parameters beside surFace roughness and Flank wear. From the experimental study, it is noticed that textured tool gives low values of cutting and feed forces during machining as compared to a non-textured tool. In comparison to groove-texturing tool, dot-texturing tool generates less cutting and feed forces. Both the texturing tool gives fine surFace finish and less Flank wears in comparison to non-textured tool.

  • performance parameters studies in machining of aisi d2 steel with dot textured groove textured non textured cutting tool at the Flank Face
    International Journal of Refractory Metals & Hard Materials, 2019
    Co-Authors: Sanjib Kr Rajbongshi, Deba Kumar Sarma
    Abstract:

    Abstract SurFace texturing is a method where there is a change in tribological properties due to change in surFace characteristics. The present work is a comparison of the performance of dot-textured coated carbide tool with groove-textured and non-textured coated carbide tool in machining AISI D2 steel. Micro dot textures are made on the Flank Face using micro-electric discharge machining. Considering full factorial design, total 8 experiments are performed with cutting speed, feed and depth of cut as process parameters. For each parameter, two levels are considered. Flank wear and surFace roughness are investigated to compare the function of dot-textured coated carbide tool with the groove-textured and non-textured coated carbide tool. In every condition, Flank wear is less in machining with both types of textured tool in comparison to the non-textured coated carbide tool. In most of the cases, surFace roughness is less for both types of textured tool than the non-textured tool. Comparing dot-textured tool over groove-textured tool, it is observed that dot-textured tool is better than the groove-textured tool in reducing Flank wear and surFace roughness. Analysis of white layer and micro hardness at the machined surFaces revealed that dot-texturing helps in minimizing the thickness of white layer and micro-hardness property in comparison to groove-textured and non-textured tool. Thus, dot texturing is found to be better in improving machinability than groove-textured and non-textured tool.

  • Performance parameters studies in machining of AISI D2 steel with dot-textured, groove-textured & non-textured cutting tool at the Flank Face
    International Journal of Refractory Metals & Hard Materials, 2019
    Co-Authors: Sanjib Kr Rajbongshi, Deba Kumar Sarma
    Abstract:

    Abstract SurFace texturing is a method where there is a change in tribological properties due to change in surFace characteristics. The present work is a comparison of the performance of dot-textured coated carbide tool with groove-textured and non-textured coated carbide tool in machining AISI D2 steel. Micro dot textures are made on the Flank Face using micro-electric discharge machining. Considering full factorial design, total 8 experiments are performed with cutting speed, feed and depth of cut as process parameters. For each parameter, two levels are considered. Flank wear and surFace roughness are investigated to compare the function of dot-textured coated carbide tool with the groove-textured and non-textured coated carbide tool. In every condition, Flank wear is less in machining with both types of textured tool in comparison to the non-textured coated carbide tool. In most of the cases, surFace roughness is less for both types of textured tool than the non-textured tool. Comparing dot-textured tool over groove-textured tool, it is observed that dot-textured tool is better than the groove-textured tool in reducing Flank wear and surFace roughness. Analysis of white layer and micro hardness at the machined surFaces revealed that dot-texturing helps in minimizing the thickness of white layer and micro-hardness property in comparison to groove-textured and non-textured tool. Thus, dot texturing is found to be better in improving machinability than groove-textured and non-textured tool.

  • a comparative study in machining of aisi d2 steel using textured and non textured coated carbide tool at the Flank Face
    Journal of Manufacturing Processes, 2018
    Co-Authors: Sanjib Kr Rajbongshi, Meinam Annebushan Singh, Deba Kumar Sarma
    Abstract:

    Abstract SurFace texturing over a cutting tool in machining is a process where a tribological alteration occurs in the tool-chip interFaces. The present work analyzes the influence of surFace texturing of the coated carbide tool on the Flank Face during machining. Linear microgrooves are prepared on the Flank Face of the coated carbide tool orthogonal to the cutting edge. The experiments are conducted in the dry turning of AISI D2 steel (45 HRC) using both textured and non-textured tool. Total eight experiments are conducted considering three factors (cutting speed, feed, and depth of cut) having two levels each. The responses of Flank wear and surFace roughness are studied for comparison of the performance of textured tool with the non-textured tool. In all the cases, Flank wear of the textured tool is found to be less as compared to the non-textured tool. Other hand, except few in most of the cases, surFace roughness is found to be lower with textured tool as compared to non-textured tool. The analysis of machined samples revealed that texturing helps in reducing the formation of white layer thickness and micro-hardness as compared to the non-textured tool. The decrease in white layer thickness at the machined surFace is supported by the decrease in temperature at the tool-chip interFace using the textured tool as compared to the non-textured tool. Thus, texturing in Flank Face of coated carbide tool improves the machinability in terms of Flank wear and tool life.

Sanjib Kr Rajbongshi - One of the best experts on this subject based on the ideXlab platform.

  • a study in turning of aisi d2 steel with textured and non textured coated carbide tool at the Flank Face
    Materials Today: Proceedings, 2020
    Co-Authors: Deba Kumar Sarma, Sanjib Kr Rajbongshi
    Abstract:

    Abstract SurFace texturing of a cutting tool is a new technique which can enhance the cutting performance during machining. In the present work micro-EDM is applied to produce texture at the tool Flank Face. Two types of texture, i.e. groove and dot are made at the Flank Face of a coated carbide tool for machining AISI D2 steel. For comparison purpose, machining is performed using non-textured tool also. Cutting speed, feed and depth of cut are selected as the cutting parameters, each having two levels. The cutting force and feed force are considered as main performance parameters beside surFace roughness and Flank wear. From the experimental study, it is noticed that textured tool gives low values of cutting and feed forces during machining as compared to a non-textured tool. In comparison to groove-texturing tool, dot-texturing tool generates less cutting and feed forces. Both the texturing tool gives fine surFace finish and less Flank wears in comparison to non-textured tool.

  • performance parameters studies in machining of aisi d2 steel with dot textured groove textured non textured cutting tool at the Flank Face
    International Journal of Refractory Metals & Hard Materials, 2019
    Co-Authors: Sanjib Kr Rajbongshi, Deba Kumar Sarma
    Abstract:

    Abstract SurFace texturing is a method where there is a change in tribological properties due to change in surFace characteristics. The present work is a comparison of the performance of dot-textured coated carbide tool with groove-textured and non-textured coated carbide tool in machining AISI D2 steel. Micro dot textures are made on the Flank Face using micro-electric discharge machining. Considering full factorial design, total 8 experiments are performed with cutting speed, feed and depth of cut as process parameters. For each parameter, two levels are considered. Flank wear and surFace roughness are investigated to compare the function of dot-textured coated carbide tool with the groove-textured and non-textured coated carbide tool. In every condition, Flank wear is less in machining with both types of textured tool in comparison to the non-textured coated carbide tool. In most of the cases, surFace roughness is less for both types of textured tool than the non-textured tool. Comparing dot-textured tool over groove-textured tool, it is observed that dot-textured tool is better than the groove-textured tool in reducing Flank wear and surFace roughness. Analysis of white layer and micro hardness at the machined surFaces revealed that dot-texturing helps in minimizing the thickness of white layer and micro-hardness property in comparison to groove-textured and non-textured tool. Thus, dot texturing is found to be better in improving machinability than groove-textured and non-textured tool.

  • Performance parameters studies in machining of AISI D2 steel with dot-textured, groove-textured & non-textured cutting tool at the Flank Face
    International Journal of Refractory Metals & Hard Materials, 2019
    Co-Authors: Sanjib Kr Rajbongshi, Deba Kumar Sarma
    Abstract:

    Abstract SurFace texturing is a method where there is a change in tribological properties due to change in surFace characteristics. The present work is a comparison of the performance of dot-textured coated carbide tool with groove-textured and non-textured coated carbide tool in machining AISI D2 steel. Micro dot textures are made on the Flank Face using micro-electric discharge machining. Considering full factorial design, total 8 experiments are performed with cutting speed, feed and depth of cut as process parameters. For each parameter, two levels are considered. Flank wear and surFace roughness are investigated to compare the function of dot-textured coated carbide tool with the groove-textured and non-textured coated carbide tool. In every condition, Flank wear is less in machining with both types of textured tool in comparison to the non-textured coated carbide tool. In most of the cases, surFace roughness is less for both types of textured tool than the non-textured tool. Comparing dot-textured tool over groove-textured tool, it is observed that dot-textured tool is better than the groove-textured tool in reducing Flank wear and surFace roughness. Analysis of white layer and micro hardness at the machined surFaces revealed that dot-texturing helps in minimizing the thickness of white layer and micro-hardness property in comparison to groove-textured and non-textured tool. Thus, dot texturing is found to be better in improving machinability than groove-textured and non-textured tool.

  • a comparative study in machining of aisi d2 steel using textured and non textured coated carbide tool at the Flank Face
    Journal of Manufacturing Processes, 2018
    Co-Authors: Sanjib Kr Rajbongshi, Meinam Annebushan Singh, Deba Kumar Sarma
    Abstract:

    Abstract SurFace texturing over a cutting tool in machining is a process where a tribological alteration occurs in the tool-chip interFaces. The present work analyzes the influence of surFace texturing of the coated carbide tool on the Flank Face during machining. Linear microgrooves are prepared on the Flank Face of the coated carbide tool orthogonal to the cutting edge. The experiments are conducted in the dry turning of AISI D2 steel (45 HRC) using both textured and non-textured tool. Total eight experiments are conducted considering three factors (cutting speed, feed, and depth of cut) having two levels each. The responses of Flank wear and surFace roughness are studied for comparison of the performance of textured tool with the non-textured tool. In all the cases, Flank wear of the textured tool is found to be less as compared to the non-textured tool. Other hand, except few in most of the cases, surFace roughness is found to be lower with textured tool as compared to non-textured tool. The analysis of machined samples revealed that texturing helps in reducing the formation of white layer thickness and micro-hardness as compared to the non-textured tool. The decrease in white layer thickness at the machined surFace is supported by the decrease in temperature at the tool-chip interFace using the textured tool as compared to the non-textured tool. Thus, texturing in Flank Face of coated carbide tool improves the machinability in terms of Flank wear and tool life.

Jianxin Deng - One of the best experts on this subject based on the ideXlab platform.

  • Effect of nano-scale texture pretreatment on wear resistance of WC/Co tools with/without TiAlN coated Flank-Face in dry turning of green Al2O3 ceramics
    Ceramics International, 2018
    Co-Authors: Jianxin Deng, Ran Duan, Wei Wang, Rong Meng, Dongliang Ge, Xuemu Li
    Abstract:

    Abstract Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, Flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured Flank-Face, tool with TiAlN coating deposited on polished Flank-Face, and tool with TiAlN coating deposited on nano-scale textured Flank-Face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated Flank-Face was studied in turning of green Al2O3 ceramics. Results displayed that nano-scale textures on the Flank-Face had prominent effects on the enhancement of Flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn Face from abrasion, and nano-scale textures pretreated on the Flank-Face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surFaces.

  • effect of nano scale texture pretreatment on wear resistance of wc co tools with without tialn coated Flank Face in dry turning of green al2o3 ceramics
    Ceramics International, 2018
    Co-Authors: Jianxin Deng, Ran Duan, Wei Wang, Rong Meng, Dongliang Ge, Xuemu Li
    Abstract:

    Abstract Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, Flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured Flank-Face, tool with TiAlN coating deposited on polished Flank-Face, and tool with TiAlN coating deposited on nano-scale textured Flank-Face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated Flank-Face was studied in turning of green Al2O3 ceramics. Results displayed that nano-scale textures on the Flank-Face had prominent effects on the enhancement of Flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn Face from abrasion, and nano-scale textures pretreated on the Flank-Face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surFaces.

  • wear resistance of carbide tools with textured Flank Face in dry cutting of green alumina ceramics
    Wear, 2017
    Co-Authors: Jianxin Deng, Fengfang Wu, Ran Duan, Xiang Zhang
    Abstract:

    Abstract Green ceramics are the ceramic compacts before sintering, and there is no metallurgical bonding force between the powder particles. Therefore, it can be machined by traditional mechanical processing. Machining of green ceramics represents an alternative way to other shaping process, and offers a high degree of flexibility and economic efficiency for the machining of ceramic parts. In this paper, surFace texturing with different geometrical characteristics was made on the Flank Face of the WC/Co carbide tools. Dry cutting tests on the green alumina ceramics were carried out with these Flank-Face textured tools and a conventional WC/Co carbide tool, the wear resistance of these Flank-Face textured tools was investigated. Results showed that there was only mild wear on the rake Face, while Flank Face revealed serious abrasive wear. The Flank wear of the Flank-Face textured tools was significantly reduced compared with that of the conventional one, and the Flank-Face textured tools with micro-scale grooves on the Flank Face parallel to the main cutting edge (AT-1) had the most improved Flank wear resistance. Mechanism responsible was found that the textures on the Flank Face exhibited derivative-cutting phenomenon during dry cutting of green alumina ceramics, which served as the removal of hard inclusion between the tool-workpiece interFace. The derivative-cutting was found to be beneficial to the decrease of the Flank wear of the Flank-Face textured tools. The textures on the Flank Faces can also be acted as storage for powder chip which can protect the texture groove from abrasion. Textures on Flank Face had no obvious effect on the roughness of machined green alumina ceramic surFaces.

Xuemu Li - One of the best experts on this subject based on the ideXlab platform.

  • effect of nano scale texture pretreatment on wear resistance of wc co tools with without tialn coated Flank Face in dry turning of green al2o3 ceramics
    Ceramics International, 2018
    Co-Authors: Jianxin Deng, Ran Duan, Wei Wang, Rong Meng, Dongliang Ge, Xuemu Li
    Abstract:

    Abstract Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, Flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured Flank-Face, tool with TiAlN coating deposited on polished Flank-Face, and tool with TiAlN coating deposited on nano-scale textured Flank-Face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated Flank-Face was studied in turning of green Al2O3 ceramics. Results displayed that nano-scale textures on the Flank-Face had prominent effects on the enhancement of Flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn Face from abrasion, and nano-scale textures pretreated on the Flank-Face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surFaces.

  • Effect of nano-scale texture pretreatment on wear resistance of WC/Co tools with/without TiAlN coated Flank-Face in dry turning of green Al2O3 ceramics
    Ceramics International, 2018
    Co-Authors: Jianxin Deng, Ran Duan, Wei Wang, Rong Meng, Dongliang Ge, Xuemu Li
    Abstract:

    Abstract Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, Flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured Flank-Face, tool with TiAlN coating deposited on polished Flank-Face, and tool with TiAlN coating deposited on nano-scale textured Flank-Face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated Flank-Face was studied in turning of green Al2O3 ceramics. Results displayed that nano-scale textures on the Flank-Face had prominent effects on the enhancement of Flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn Face from abrasion, and nano-scale textures pretreated on the Flank-Face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surFaces.

Ran Duan - One of the best experts on this subject based on the ideXlab platform.

  • Effect of nano-scale texture pretreatment on wear resistance of WC/Co tools with/without TiAlN coated Flank-Face in dry turning of green Al2O3 ceramics
    Ceramics International, 2018
    Co-Authors: Jianxin Deng, Ran Duan, Wei Wang, Rong Meng, Dongliang Ge, Xuemu Li
    Abstract:

    Abstract Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, Flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured Flank-Face, tool with TiAlN coating deposited on polished Flank-Face, and tool with TiAlN coating deposited on nano-scale textured Flank-Face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated Flank-Face was studied in turning of green Al2O3 ceramics. Results displayed that nano-scale textures on the Flank-Face had prominent effects on the enhancement of Flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn Face from abrasion, and nano-scale textures pretreated on the Flank-Face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surFaces.

  • effect of nano scale texture pretreatment on wear resistance of wc co tools with without tialn coated Flank Face in dry turning of green al2o3 ceramics
    Ceramics International, 2018
    Co-Authors: Jianxin Deng, Ran Duan, Wei Wang, Rong Meng, Dongliang Ge, Xuemu Li
    Abstract:

    Abstract Advanced ceramics after sintering are almost processed by grinding or non-traditional machining. Nevertheless, these methods are limited by complexity of processing efficiency, tool wear and economic effectiveness. So machining green ceramics before sintering is introduced, it is environmentally friendly, efficient and cheap with high removal rate of materials. During dry turning green ceramics, Flank-wear of tools and processing quality of compacts are two main elements to evaluate cutting performance of tools. The processing efficiency and economic effectiveness are mainly effected by the cutting performance of tools. In this paper, polished tool, tool with nano-scale textured Flank-Face, tool with TiAlN coating deposited on polished Flank-Face, and tool with TiAlN coating deposited on nano-scale textured Flank-Face were prepared. Effect of nano-scale texture pretreatment on wear-resistance of WC/Co tools with/without TiAlN coated Flank-Face was studied in turning of green Al2O3 ceramics. Results displayed that nano-scale textures on the Flank-Face had prominent effects on the enhancement of Flank-wear resistance of tools. Relevant mechanisms were explored that nano-scale textures exhibited “derivative cutting” to protect unworn Face from abrasion, and nano-scale textures pretreated on the Flank-Face could enhance the adhesion strength between coating and matrix. These developed tools could also significantly improve the processing quality of machined surFaces.

  • wear resistance of carbide tools with textured Flank Face in dry cutting of green alumina ceramics
    Wear, 2017
    Co-Authors: Jianxin Deng, Fengfang Wu, Ran Duan, Xiang Zhang
    Abstract:

    Abstract Green ceramics are the ceramic compacts before sintering, and there is no metallurgical bonding force between the powder particles. Therefore, it can be machined by traditional mechanical processing. Machining of green ceramics represents an alternative way to other shaping process, and offers a high degree of flexibility and economic efficiency for the machining of ceramic parts. In this paper, surFace texturing with different geometrical characteristics was made on the Flank Face of the WC/Co carbide tools. Dry cutting tests on the green alumina ceramics were carried out with these Flank-Face textured tools and a conventional WC/Co carbide tool, the wear resistance of these Flank-Face textured tools was investigated. Results showed that there was only mild wear on the rake Face, while Flank Face revealed serious abrasive wear. The Flank wear of the Flank-Face textured tools was significantly reduced compared with that of the conventional one, and the Flank-Face textured tools with micro-scale grooves on the Flank Face parallel to the main cutting edge (AT-1) had the most improved Flank wear resistance. Mechanism responsible was found that the textures on the Flank Face exhibited derivative-cutting phenomenon during dry cutting of green alumina ceramics, which served as the removal of hard inclusion between the tool-workpiece interFace. The derivative-cutting was found to be beneficial to the decrease of the Flank wear of the Flank-Face textured tools. The textures on the Flank Faces can also be acted as storage for powder chip which can protect the texture groove from abrasion. Textures on Flank Face had no obvious effect on the roughness of machined green alumina ceramic surFaces.