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Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has
[2010]
- a)High thermal conductivity and high specific heat
- b)High thermal conductivity and low specific heat
- c)Low thermal conductivity and low specific heat
- d)Low thermal conductivity and high specific heat
Correct answer is option 'A'. Can you explain this answer?
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Keeping all other parameters unchanged, the tool wear in electrical di...
With the high thermal conductivity, heat dissipation rate is more.
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Keeping all other parameters unchanged, the tool wear in electrical di...
Introduction:
Electrical Discharge Machining (EDM) is a non-conventional machining process used to shape hard materials that are difficult to machine using traditional methods. In EDM, an electric spark is generated between the tool and workpiece, resulting in the removal of material by melting and vaporization. The tool wear in EDM is a critical factor that affects the quality and accuracy of the machined surface. The choice of tool material plays a significant role in determining the tool wear rate.
Explanation:
The tool material in EDM should possess certain properties to minimize tool wear. Let's analyze the effect of thermal conductivity and specific heat on tool wear:
1. Thermal Conductivity:
Thermal conductivity refers to the ability of a material to conduct heat. Higher thermal conductivity allows for better heat dissipation from the tool, reducing the temperature rise and thermal stresses. This, in turn, reduces the wear of the tool. Therefore, a high thermal conductivity tool material is desirable to minimize tool wear in EDM.
2. Specific Heat:
Specific heat is the amount of heat required to raise the temperature of a unit mass of a material by one degree. A low specific heat tool material has a lower heat storage capacity, meaning it can absorb less heat during the machining process. This results in lower temperatures at the tool-workpiece interface, reducing thermal stresses and the wear of the tool. Hence, a low specific heat tool material is preferred to minimize tool wear in EDM.
Conclusion:
Considering the above factors, the tool wear in electrical discharge machining (EDM) would be less if the tool material has high thermal conductivity and high specific heat. High thermal conductivity facilitates effective heat dissipation, while high specific heat allows for better heat absorption and lower temperatures at the tool-workpiece interface. This combination reduces tool wear and improves the overall efficiency and quality of the EDM process.
Electrical Discharge Machining (EDM) is a non-conventional machining process used to shape hard materials that are difficult to machine using traditional methods. In EDM, an electric spark is generated between the tool and workpiece, resulting in the removal of material by melting and vaporization. The tool wear in EDM is a critical factor that affects the quality and accuracy of the machined surface. The choice of tool material plays a significant role in determining the tool wear rate.
Explanation:
The tool material in EDM should possess certain properties to minimize tool wear. Let's analyze the effect of thermal conductivity and specific heat on tool wear:
1. Thermal Conductivity:
Thermal conductivity refers to the ability of a material to conduct heat. Higher thermal conductivity allows for better heat dissipation from the tool, reducing the temperature rise and thermal stresses. This, in turn, reduces the wear of the tool. Therefore, a high thermal conductivity tool material is desirable to minimize tool wear in EDM.
2. Specific Heat:
Specific heat is the amount of heat required to raise the temperature of a unit mass of a material by one degree. A low specific heat tool material has a lower heat storage capacity, meaning it can absorb less heat during the machining process. This results in lower temperatures at the tool-workpiece interface, reducing thermal stresses and the wear of the tool. Hence, a low specific heat tool material is preferred to minimize tool wear in EDM.
Conclusion:
Considering the above factors, the tool wear in electrical discharge machining (EDM) would be less if the tool material has high thermal conductivity and high specific heat. High thermal conductivity facilitates effective heat dissipation, while high specific heat allows for better heat absorption and lower temperatures at the tool-workpiece interface. This combination reduces tool wear and improves the overall efficiency and quality of the EDM process.
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Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer?
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Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer?.
Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has[2010]a)High thermal conductivity and high specific heatb)High thermal conductivity and low specific heatc)Low thermal conductivity and low specific heatd)Low thermal conductivity and high specific heatCorrect answer is option 'A'. Can you explain this answer?.
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