Machinability and Surface Integrity 2012 potx

... both the tools and their setting osets, monitoring for tool wear and breakage and, initiat- ing tool replacements – as necessary, • Adjusting speed and feed as appropriate and, com- pensating ... (Figs. 116 and 117), or non-contact variet- ies (not depicted), Machining and Monitoring Strategies  Tool – Force Monitoring In single-point turning, if one ignores the ortho...

Ngày tải lên: 21/06/2014, 22:20

... vibration. [Courtesy of Taylor Hobson] . Machinability and Surface Integrity  Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 7 Machinability and Surface Integrity ‘It is common ... dierent production processes. Machinability and Surface Integrity  Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com Figure 156...

Ngày tải lên: 27/06/2014, 14:20

... hardness levels. Machinability and Surface Integrity   Machinability and Surface Integrity ‘It is common sense to take a method and try it. If it fails, admit it frankly and try another. ... fraction Machinability and Surface Integrity  Figure 159. The generated errors produced when circular interpolating at high feedrates when high-speed machining. Mac...

Ngày tải lên: 27/06/2014, 23:20

... which it appears. Machinability and Surface Integrity  Figure 14 4. The major factors that inuence a machined component’s condition. Machinability and Surface Integrity  7 .1 Machinability Introduction ... University. . Machinability and Surface Integrity  7 Machinability and Surface Integrity ‘It is common sense to take a method and try it....

Ngày tải lên: 05/08/2014, 21:20

... 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  ... to each ot...

Ngày tải lên: 05/08/2014, 21:20

... 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

... when high-speed machining. Machinability and Surface Integrity  mentally increased to point ‘e’ 34 – this being a ‘safe- limit’ for the optimum machining operation. 7 .4 Milled Roundness – Interpolated ... at best, only its partial aect would be present here, on this diagram. e ‘Lay’ of a surface tends to be either: anisotropic, or isotropic 44 in nature on a machined...

Ngày tải lên: 05/08/2014, 21:20

... designated by Rmr (Fig. 165ai and aii). In the majority of circumstances mating surfaces demand specic ‘tribological conditions’ 55 : these are the direct result of particular machining operational ... 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...

Ngày tải lên: 05/08/2014, 21:20

... 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 ... the surface topography is marred by similar tears, etc., which might be a cause for its potential rejection. is smoother surface was due to Machinability and Surfa...

Ngày tải lên: 05/08/2014, 21:20

...  Figure 172 . Typical temperature distributions (isotherms) during machining, illustrated across the: chip, insert and work- piece; at relatively low cutting speed . Machinability and Surface Integrity ... capture and analysis covers these and other related parameters and clearly indicates the power of simulation – more will be mentioned on this subject later in the chapt...

Ngày tải lên: 05/08/2014, 21:20

... appropriate cali- Machinability and Surface Integrity  Figure 1 78. Multi-axis non-rotating dynamometers, used for: milling, drilling and turning experimental data-gathering and analysis. [Courtesy ... 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...

Ngày tải lên: 05/08/2014, 21:20

... action which was presented by Merchant and Zlatin ( 194 5) and later work by Lee and Shaer ( 195 1) – not shown. is earlier work was then followed by Zorev’s ( 196 3) interpretation of an ‘idealised ... vector directions have been reversed and some terms have been modied from the original work. [Source: Ernst & Merchant, 194 1] . Machinability and Surface Integrity...

Ngày tải lên: 05/08/2014, 21:20

... 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

... Secondary Machining Operations and the Re- sulting Surface Integrity: An Overview. Surface Topogra- phy, Vol. 3, 25–42, 1990. Smith, G.T. Some Aspects in the Surface Integrity and Tool Wear Associated ... Fundamentals and Future of Quality, 446–451, 1986. Shiraishi, M. and Sato, S. Dimensional and Surface Rough- ness controls in a Turning Operation. Trans. of ASME, Vol...

Ngày tải lên: 05/08/2014, 21:20

Ngày tải lên: 05/08/2014, 21:20