Machinability and Surface Integrity Part 3 pps

... the order to ‘break-rank’ (i.e randomising both their pacing and steps) when proceeding over a structure such as a bridge was mandatory. Machinability and Surface Integrity  is either ‘pearled’ ... of instrument noise, or vibration. [Courtesy of Taylor Hobson] . Machinability and Surface Integrity  Figure 156. Vibration and chatter in machining operations, with the...

Ngày tải lên: 05/08/2014, 21:20

... deec- tions, vibrations and chatter, material strain and other extraneous eects, 3. Prole – represents the overall shape of the ma- chined surface – ignoring any roughness and wavi- ness variations ... roughness and waviness surface texture components, plus the surface s associated ‘Lay’ 43 are shown in Fig. 160a. e ‘Prole’ is not depicted, as it is a long-frequency...

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... types of machinability investigation. In the former case, it is Machinability and Surface Integrity  Tool-life Diagrams Machinability is a subject that has yet to be fully-de- ned and analysed, ... appropriate cali- Machinability and Surface Integrity  Figure 178. Multi-axis non-rotating dynamometers, used for: milling, drilling and turning experimental data-ga...

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... enter- ing the surface leading to greater thermal damage and poorer part surface integrity. e chemical mechanism is dominant across all classes of production process to some degree and that surfaces ... the component(s). Machinability and Surface Integrity  Figure 185. The cross-section of an anisotropic (i.e. periodic) surface, illustrating surface contaminants (...

Ngày tải lên: 05/08/2014, 21:20

Ngày tải lên: 05/08/2014, 21:20

... University. . Machinability and Surface Integrity  7 Machinability and Surface Integrity ‘It is common sense to take a method and try it. If it fails, admit it frankly and try another. ... which it appears. Machinability and Surface Integrity  Figure 144. The major factors that inuence a machined component’s condition. Machinability and Surface In...

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... accelerated machinability test, illustrating how ank wear and surface texture degrades, with the number of facing-o passes . Machinability and Surface Integrity  tions. For a practical machinability ... Figure 149. Flow chart indicating the desigh philosophy for unbiased and ranked machinability trials. Machinability and Surface Integrity  ... utilised. O...

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... processes. Machinability and Surface Integrity  the surface topography, if used in conjunction with the Ra value (Fig. 164). is is particularly true for many machining applications and where ... following expression: Machinability and Surface Integrity  the point, that all of these two-dimensional surface pa- rameters can be classied into three distinct groupi...

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... min –1 and the machinability trials used an in-cut time of just 6 seconds – in order to maintain a sharp cutting edge on the tools. Machinability and Surface Integrity  Figure 168. In face- and ... ‘beta-function’ and typical ‘manufacturing process envelopes’. Machinability and Surface Integrity  the considerably larger eective tool nose radius, act- ing like...

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... machining, illustrated across the: chip, insert and work- piece; at relatively low cutting speed . Machinability and Surface Integrity  Figure 1 73. Finite Element Method (FEM), to obtain simulated, ... – is usually the re- sult of tool/workpiece anity associated with tem- Machinability and Surface Integrity  perature and its respective cutting speed (i.e. see Fig...

Ngày tải lên: 05/08/2014, 21:20