scholarly journals Tool Wear, Surface Integrity and Dimensional Accuracy in Turning Al2124SiCp (45%wt) Metal Matrix Composite using CBN and PCD Tools

2013 ◽  
Vol 6 (22) ◽  
pp. 4138-4144 ◽  
Author(s):  
Muguthu Joseph Njuguna ◽  
Dong Gao ◽  
Zhaopeng Hao
Keyword(s):  
Tool Wear ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Surface Integrity ◽  
Wear Surface ◽  
Metal Matrix ◽  
Dimensional Accuracy ◽  
Pcd Tools

Chaotic Tool Wear During Machining of Titanium Metal Matrix Composite (TiMMCs)

2014 ◽  
Author(s):  
Xuan-Truong Duong ◽  
Marek Balazinski ◽  
René Mayer
Keyword(s):  
Mathematical Model ◽  
Tool Wear ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Tool Life ◽  
Metal Matrix ◽  
Cutting Speed ◽  
Cutting Conditions ◽  
Cutting Condition ◽  
Titanium Metal

The initial tool wear during machining of titanium metal matrix composite (TiMMCs) is the result of several wear mechanisms: tool layer damage, friction - tribological wear, adhesion, diffusion and brace wear. This phenomenon occurs at the first instant and extends to only ten seconds at most. In this case the adhesive wear is the most important mechanism while the brace wear is considered as a resistance wear layer at the beginning of the steady wear period. In this paper, the effect of the initial tool wear and initial cutting conditions on tool wear progression and tool life is investigated. We proposed herein a new mathematical model based on the scatter wear and Lyapunov exponent to study quantitatively the “chaotic tool wear”. The Chaos theory, which has proved efficient in explaining how something changes in time, was used to demonstrate the dependence of the tool life on the initial cutting conditions and thus contribute to a better understanding of the influence of the initial cutting condition on the tool life. Based on the chaotic tool wear model, the scatter wear dimension and Lyapunov exponents were found to be positive in all case of the initial cutting conditions such as initial speed, feed rate and depth of cut. The initial cutting speed appears however to have the most significant impact on tool life. In particular, the mathematical model was successfully applied to the case of machining TiMMCs. It was clearly shown that changing the initial cutting speed by 20 m/min for the first two seconds of machining instead of keeping it constant at 60 m/min during the whole cutting process leads to an increase in the tool life (up to 24%).

Tool wear and cutting force investigations during turning 15 wt% SiCp-Al 7075 metal matrix composite

2020 ◽  
Vol 26 ◽  
pp. 854-859
Author(s):  
Diptikanta Das ◽  
Sandeep Kumar Pradhan ◽  
Ashok Kumar Sahoo ◽  
Amlana Panda ◽  
Mantra Prasad Satpathy ◽  
...  
Keyword(s):  
Tool Wear ◽  
Cutting Force ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Al 7075

scholarly journals Drilling studies on the prepared aluminum metal matrix composite from wet grinder stone dust particles

2018 ◽  
Vol 25 (3) ◽  
pp. 473-487
Author(s):  
L. Francis Xavier ◽  
Paramasivam Suresh
Keyword(s):  
Composite Materials ◽  
Tool Wear ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Thrust Force ◽  
Dominant Factor ◽  
Aluminum Metal ◽  
Aluminum Metal Matrix Composite ◽  
Stone Dust

AbstractThe demand for high-performance and cost-effective composite materials is gaining attention in today’s competitive world. In this work, an attempt has been made to prepare low-cost reinforced aluminum metal matrix composite by reinforcing 10% and 20% weight fractions of wet grinder stone dust (WSD) particles, an industrial waste produced during stone dressing operation in the wet grinder manufacturing industry. As drilling is one of the major machining operations carried out in industries, the prepared composite materials are subjected to drilling studies using carbide, TiN-coated carbide, and HSS drills of 5 mm diameter under dry conditions. The major concern with the machining of composites is the extreme tool wear. Tool wear is a very important and challenging task for manufacturing engineers because it has adverse affects on the product quality and increases the production cost. Hence, there is a need to identify the factors that have most significant influence on the tool wear. In this work, the Taguchi-based design of experiments and analysis of variance were used to determine the optimal cutting parameters and to analyze their effects on thrust force, torque, and tool wear. Multivariable linear regression analysis was also employed to determine the correlations between the factors and the response, namely, thrust force, torque, and tool wear. Finally, a confirmation test was conducted to validate the Taguchi optimization method. From the experimental results, feed rate was identified as the dominant factor influencing the thrust force and spindle speed was identified as the significant factor influencing the torque. Thrust force, torque, and tool wear were found to increase with the increase in the reinforcement content irrespective of the drill used for the investigation.

scholarly journals Investigation on cutting tool wear in turning Al 7075/SiCp metal matrix composite

2018 ◽  
Vol 377 ◽  
pp. 012110 ◽  
Author(s):  
Diptikanta Das ◽  
Anil Kumar Chaubey ◽  
Bijaya Bijeta Nayak ◽  
Purna Chandra Mishra ◽  
Chandrika Samal
Keyword(s):  
Tool Wear ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Cutting Tool ◽  
Cutting Tool Wear ◽  
Al 7075
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