process selection - from design to manufacture

[...]...//SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 10 – [1–16/16] 13.5.2003 7:42PM //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 11 – [1–16/16] 13.5.2003 7:42PM Preface to first edition In order to facilitate the achievement of the required quality and cost objectives for the manufacture of a component design solution it is necessary to carry out the interrelated... techniques Although the use of design for manufacture and assembly techniques requires additional up-front effort when compared with the more conventional design activity, overall the effect is to reduce the time -to- market quite considerably This is primarily due to fewer engineering changes, fewer parts to detail, //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH001.3D – 6 – [1–18/18] 8.5.2003... emerging design or prototype Any conflict between customer needs and product functionality should be referred back to the PDS The first step in the process is to analyze the design or prototype with the aim of simplifying the product structure and optimizing part-count As shown earlier, without proper analysis design solutions invariably tend to have too many parts Therefore, it is important to identify... assembly processes The intention is to promote the generation of design ideas and facilitate the matching and tuning of a design to a process, and The provision of methods and data to enable the exploration of design solutions for component manufacturing and assembly costs in the early stages of the design and development process To provide for the first point, a set of so-called manufacturing PRocess. .. manufacturing technology selected Estimation of component manufacture and assembly costs during the design process is important for both assessing a design against target costs and in trade-off analysis Overall, the left-hand side of Figure 1.18 is closely related to DFA, while the right-hand side is essentially material /process selection and component design for processing, or consideration in DFM A reader interested... into the context of modern product introduction processes and the application of techniques in design for manufacture Part II presents the manufacturing process information maps (PRIMAs) and their selection Part III is concerned with methods and data for costing design solutions //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 12 – [1–16/16] 13.5.2003 7:42PM xii Preface to. .. //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH001.3D – 15 – [1–18/18] 8.5.2003 9:12PM Process selection strategy 15 Fig 1.16 General classification of bulk and surface engineering processes //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH001.3D – 16 – [1–18/18] 8.5.2003 9:12PM 16 A strategic view Fig 1.17 Contrast in component cost for different processing routes not only design considerations relevant to the... information on DFA/DFM and materials and process selection in product development is directed to references (1.40–1.45) //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH001.3D – 11 – [1–18/18] 8.5.2003 9:11PM Techniques in design for manufacture and assembly 11 Fig 1.12 General classification of materials //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH001.3D – 12 – [1–18/18] 8.5.2003 9:12PM... classification of manufacturing processes //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH001.3D – 13 – [1–18/18] 8.5.2003 9:12PM Process selection strategy 13 Fig 1.14 General classification of assembly systems 1.5 Process selection strategy In considering alternative design solutions for cost and quality, it is necessary to explore candidate materials, geometries and tolerances, etc., against... finish) Rc ¼ relative cost coefficient assigned to a component design T ¼ process time in seconds for processing an ideal design of component by a specific process V ¼ volume of material required in order to produce the component Vf ¼ finished volume of the component Wc ¼ waste coefficient A //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 14 – [1–16/16] 13.5.2003 7:42PM xiv . //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 1 – [1–16/16] 13.5.2003 7:42PM Process Selection //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 2 – [1–16/16]. 7:42PM //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 3 – [1–16/16] 13.5.2003 7:42PM Process Selection From design to manufacture Second edition K. G. Swift Department. vii //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 8 – [1–16/16] 13.5.2003 7:42PM //SYS21///INTEGRAS/B&H/PRS/FINALS_0 7-0 5-0 3/0750654376-CH000-PRELIMS.3D – 9 – [1–16/16] 13.5.2003 7:42PM Preface to second