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Questions and Answers
What is the primary purpose of estimating disassembly time?
What is the primary purpose of estimating disassembly time?
- To determine the product's end-of-life disposal strategy
- To classify disassembly tasks into different categories
- To predict the cost of disassembly for a product (correct)
- To evaluate the effectiveness of product design improvements
According to Kroll's approach, how can disassembly time estimates be used?
According to Kroll's approach, how can disassembly time estimates be used?
- To determine the environmental impact of a product
- To classify disassembly tasks into different categories
- To compare the disassemblability of different product designs (correct)
- To estimate the cost of assembling a product
What is the significance of disassembly time estimation in product design?
What is the significance of disassembly time estimation in product design?
- It aids in evaluating the effectiveness of product design improvements (correct)
- It classifies disassembly tasks into different categories
- It determines the product's environmental impact
- It helps in reducing the product's manufacturing cost
What is the potential application of disassembly time estimation in product design?
What is the potential application of disassembly time estimation in product design?
What is the primary benefit of using disassembly time estimation in product design?
What is the primary benefit of using disassembly time estimation in product design?
What is the relationship between disassembly time estimation and product design improvements?
What is the relationship between disassembly time estimation and product design improvements?
What is the significance of disassembly time estimation in end-of-life product disposal?
What is the significance of disassembly time estimation in end-of-life product disposal?
What is the primary goal of reducing the total number of different materials in an assembly?
What is the primary goal of reducing the total number of different materials in an assembly?
Which of the following is a benefit of minimizing the number of different materials in a product?
Which of the following is a benefit of minimizing the number of different materials in a product?
Why is it important to select materials that minimize pollution during extraction, processing, deployment, recycling, and disposal?
Why is it important to select materials that minimize pollution during extraction, processing, deployment, recycling, and disposal?
What is the main advantage of enabling disassembly materials to be easily recyclable?
What is the main advantage of enabling disassembly materials to be easily recyclable?
What is the primary goal of facilitating the identification of materials?
What is the primary goal of facilitating the identification of materials?
What is the benefit of using compatible materials?
What is the benefit of using compatible materials?
Why is it important to avoid contaminant materials?
Why is it important to avoid contaminant materials?
What is the main advantage of minimizing the different types of materials in each part?
What is the main advantage of minimizing the different types of materials in each part?
Why is it important to enable the disassembly parts for remanufacturing or reuse?
Why is it important to enable the disassembly parts for remanufacturing or reuse?
What is the main goal of reducing overall material diversity?
What is the main goal of reducing overall material diversity?
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Study Notes
Methods to Calculate Disassembly Time
- Two alternatives to determine partial or complete disassembly time: direct measurement and calculation based on product parameters.
Direct Measurement
- Involves measuring disassembly times of products of the same category by several operators with varying experience.
Calculation Based on Product Parameters
- Uses properties of the product and connectors to estimate disassembly time.
- Kroll's approach: employed to calculate disassembly time for several electronic products.
- Enables:
- Quantitative comparison of disassemblability of different product designs.
- Monitoring design improvements.
- Estimating disassembly costs.
- Desai & Mital's contribution to this approach.
Recycling Efforts
- Current efforts in recycling focus on how to make materials more recyclable and finding new applications for recycled materials.
- Using fewer materials in a product is a key goal.
Material Selection and Identification
- Identifying material types is crucial, and marking parts with international recycling symbols helps recyclers sort items correctly.
- Selecting materials that minimize pollution during extraction, processing, deployment, recycling, and disposal is essential.
Design for Recycling and Remanufacturing
- Minimizing the number of different materials in each part and in the product as a whole maximizes recovery, recycling, and remanufacturing.
- Enabling disassembly of materials for easy recycling and remanufacturing or reuse is important.
- Facilitating material identification and selecting compatible materials are also key considerations.
Best Practices
- Reducing overall material diversity and using all materials optimally are best practices.
- Avoiding contaminant materials is also crucial for effective recycling.
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