14.1 Design for production: Can this design be made? Flashcards
What is a term for the desirable attributes that engineers have always sought to realize to some degree with their designs in the design process?
Engineers have always sought to realize various desirable attributes to some degree in their designs, embodied in the design process as objectives.
Seeking to realize particular desirable attributes or objectives is often referred to as what?
Seeking to realize particular desirable attributes or objectives is often referred to as designing “for x”.
For what “x”s or -ities might an engineer design?
Engineers might design for one of the following -ities:
- Manufacturability
- Maintainability
- Reliability
- Affordability
Why is design for manufacturing and assembly an important issue today?
Design for manufacturing and assembly is an important issue today, as most companies are very concerned with how to get high-quality products to market quickly.
What is the basis of design for manufacturing?
Design for manufacturing (DFM) is based on minimizing costs of production and/or time to market for a product, while maintaining an appropriate level of quality.
What does designing for manufacturing require?
Design for manufacturing requires that the design team include experts in_:_
- manufacturing
- marketing
- engineering
What are the six steps of one basic methodology for designing for manufacturing?
One basic methodology consists of six steps:
- Estimate the manufacturing costs for a given design alternative.
- Reduce the cost of the components where possible.
- Reduce the cost of assembly.
- Reduce the cost of supporting production.
- Consider the effects of DFM on other objectives.
- If the results are not acceptable, revise the design and try again.
What is assembly?
Assembly refers to the manner in which the various parts, components, and subsystems are joined, attached; or otherwise grouped together to form the final product.
Into what two processes can assembly be characterized?
Assembly can be characterized as consisting of a set of processes by which the assembler:
- Handles parts or components (i.e., retrieves and positions them appropriately relative to each other),
- Inserts (or mates or combines) the parts into a finished subsystem or system.
What are some design choices that can impact assembly?
There are a number of design choices that can impact assembly such as:
- Limiting the number of components to the fewest that are essential to the working of the finished product.
- Using standard fasteners and integrating fasteners into the product itself.
- Designing the product to have a base component on which other components can be located.
- Designing the product to have components that facilitate retrieval and assembly
- Designing the product and its component parts to maximize accessibility, both for manufacture and during repairs.
What is a common inventory planning technique?
A common inventory planning technique is materials requirements planning (MRP).
Describe the procedure for materials requirements planning (MRP).
Materials requirements planning (MRP) utilizes assembly drawings to develop a bill of materials (BOM) and an assembly chart-sometimes wittily called a “gozinto”: chart that shows the order in which the parts on the BOM are put together.
How can companies and production planners efficiently design for production?
A company has to determine the size and timing of its production schedule.
Production planners can determine the size and timing of inventory orders.
How can companies avoid carrying large inventories of parts that are paid for but not yet generating revenues?
Just In time delivery of parts can help avoid carrying large inventories of parts that are paid for but not generating revenues until after they are assembled and shipped.
