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[39] [40] [23] The FMEA worksheet is hard to produce, hard to understand and read, as well as hard to maintain. The use of neural network techniques to cluster and visualise failure modes were suggested starting from 2010. [41] [42] [43] An alternative approach is to combine the traditional FMEA table with set of bow-tie diagrams. The diagrams ...
Depending on various types of manufacturing processes there are set guidelines for DFM practices. These DFM guidelines help to precisely define various tolerances, rules and common manufacturing checks related to DFM. Rule based guidelines which can be referred to while designing parts are mentioned below.
Design for manufacturability (also sometimes known as design for manufacturing or DFM) is the general engineering practice of designing products in such a way that they are easy to manufacture. The concept exists in almost all engineering disciplines, but the implementation differs widely depending on the manufacturing technology.
Specifying material 25 or 30 percent thicker than the finished-part thickness is usually sufficient to allow for such reduction in wall thickness. However, material too thick for easy spinning should not be specified. Both extra-thick and extra-thin materials make spinning more difficult.
Design for excellence (DfX or DFX) is a term and abbreviation used interchangeably in the existing literature, [1] [2] [3] where the X in design for X is a variable which can have one of many possible values. [4]
Algorithmic point of view, a free-form surface is decomposed to combination of various plane surfaces and weight is calculated/assigned to each. Total of weights is minimized for best overall surface finish. [9] Build Time reduction: Rough estimation of build time is done using slicing. The build time is proportional to the sum of surface areas ...
DFM guidelines define a set of rules for a person designing a product to ease the manufacturing process, reduce cost and time. For example, if a hole is to be drilled , if the designer specifies a standard hole size then it reduces the cost because the drill bits of unusual sizes are not readily available they have to be custom made.
Rule based DFM analysis for forging is the controlled deformation of metal into a specific shape by compressive forces. The forging process goes back to 8000 B.C. and evolved from the manual art of simple blacksmithing. Then as now, a series of compressive hammer blows performs the shaping or forging of the part. Modern forging uses machine ...