Design For Manufacturing- level I

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Best practice
In generally, the design team needs to understand how is the product being built Specifically Design for the processes to be used to build the product you are designing:
<1> If products will be built by standard processes, design teams must understand them and design for them
<2> If processes are new, then design teams must concurrently design the new processes as they design the product.
Concurrent Engineering
Concurrent Engineering is the practice of concurrently developing products and their manufacturing processes. (1) If existing processes are to be utilized, then the product must be designed for these processes. (2) If new processes are to be utilized, then the product and the process must be developed concurrently.
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Old Practice

Over the wall concept
Design
Manufacturing
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Different Design Methodologies & Scenarios
P/L design & configure
To meet the requirement of product design, process, quality
Scenario 2
The Good New Days of Product Development Teams
DFX
One way that manufacturability can be assured is by developing products in multi-functional teams with early and active participation from Manufacturing, Marketing (and even customers), Finance, Industrial Designers, Quality, Service, Purchasing, Vendors, Regulation Compliance specialists, Lawyers, and factory works. The team works together to not only design for functionality, but also to optimize cost, delivery, quality, reliability, ease of assembly, testability, ease of service, shipping, human factors, styling, safety, customization, expandability, and various regulatory and environmental compliance.
Design for Manufacturability and Concurrent Engineering are proven design methodologies that work for any sized company. Early consideration of manufacturing issues shortens product development time, minimizes development cost, and ensures a smooth transition into production for quick time to market.
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ห้องสมุดไป่ตู้
Definitions DFM & Concurrent Engineering
Design for Manufacturability
Design for manufacturability is the process of proactively designing products to: (1) Optimize all the manufacturing functions: fabrication, assembly, test, procurement, shipping, delivery, service, and repair, as well as, (2) Assure the best cost, quality, reliability, regulatory compliance, safety, time-to-market, and customer satisfaction.
Requirement of product design, process, quality
Obsolete Methodology To accommodate the capability & capacity of P/L
C/E, DFM
“The Best Equipment Can Not Fix the Critical Design Faults!”
Design C/E, DFM
Manufacturing
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ADVANCED PRODUCT DEVELOPMENT METHODOLOGIES
The importance of a clear product definition to satisfy the "voice of the customer" (using QFDQuality Function Deployment ) and optimizing product architecture, which determines 60% of a products cumulative lifetime cost Product line planning, prioritizing, and rationalization, which can raise profits in the current quarter by shifting focus to high-leverage products and eliminating money-draining products. It can also free up valuable resources as product line rationalization eliminates high-overhead ("fire drill") products. Real concurrent engineering of a consistent product/production system; The value of early participation of multi-functional team members; How to resolve resource availability constraints; How New Product Development teamwork can resolve issues early, when they are easier to resolve; Feedback mechanisms for gathering input from customers, manufacturing, vendors, and field service Minimizing time-to-market and, when applied with mass customization principles, ultra-fast time-tomarket, where "new" products are really planned "variations-on-a-theme" Decision making based on total cost accounting (ABC) and its effect on product pricing, product line planning, standardization, and product development decisions; Easy implementation approaches using cost-drivers to quickly improve product costing
---- David M. Anderson
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Different Design Methodologies & Scenarios(Cont’)
Scenario 1
The Bad Old Days
Before DFM, the motto was "I designed it; you build it!" Design engineers worked alone or only in the company of other design engineers in "The Engineering Department." Designs were then thrown over the wall leaving manufacturing people with the dilemma of either objecting (but its to late to change the design!) or struggling to launch a product that was not designed for manufacturability. Often this delayed the both the product launch and the time to ramp up to full production, which is the only meaningful measure of time-to-market.